diff --git a/acb.h b/acb.h
index fb8a4c8b..b5d8a3be 100644
--- a/acb.h
+++ b/acb.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_H
 #define ACB_H
diff --git a/acb/acos.c b/acb/acos.c
index 3b3325e7..31650a01 100644
--- a/acb/acos.c
+++ b/acb/acos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/acosh.c b/acb/acosh.c
index 5105355b..e0c12306 100644
--- a/acb/acosh.c
+++ b/acb/acosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/addmul.c b/acb/addmul.c
index 8e74000d..f398795a 100644
--- a/acb/addmul.c
+++ b/acb/addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/agm1.c b/acb/agm1.c
index 89075981..0cabdb14 100644
--- a/acb/agm1.c
+++ b/acb/agm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 #include "acb_poly.h"
diff --git a/acb/arg.c b/acb/arg.c
index 40db4bbf..8196005d 100644
--- a/acb/arg.c
+++ b/acb/arg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/asin.c b/acb/asin.c
index 01d0e68a..7d72845f 100644
--- a/acb/asin.c
+++ b/acb/asin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/asinh.c b/acb/asinh.c
index c61afde6..4f56ff71 100644
--- a/acb/asinh.c
+++ b/acb/asinh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/atan.c b/acb/atan.c
index b0422b7a..0365376b 100644
--- a/acb/atan.c
+++ b/acb/atan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/atanh.c b/acb/atanh.c
index a3db5b99..e0308c96 100644
--- a/acb/atanh.c
+++ b/acb/atanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/barnes_g.c b/acb/barnes_g.c
index a529bd78..3bf96759 100644
--- a/acb/barnes_g.c
+++ b/acb/barnes_g.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 #include "acb_poly.h"
diff --git a/acb/bernoulli_poly_ui.c b/acb/bernoulli_poly_ui.c
index 910329b7..7c38f5bc 100644
--- a/acb/bernoulli_poly_ui.c
+++ b/acb/bernoulli_poly_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/chebyshev_t2_ui.c b/acb/chebyshev_t2_ui.c
index 97ef723d..cedf162a 100644
--- a/acb/chebyshev_t2_ui.c
+++ b/acb/chebyshev_t2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/chebyshev_t_ui.c b/acb/chebyshev_t_ui.c
index 0098d331..751c1766 100644
--- a/acb/chebyshev_t_ui.c
+++ b/acb/chebyshev_t_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/chebyshev_u2_ui.c b/acb/chebyshev_u2_ui.c
index b80d80db..257898fe 100644
--- a/acb/chebyshev_u2_ui.c
+++ b/acb/chebyshev_u2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/chebyshev_u_ui.c b/acb/chebyshev_u_ui.c
index 52f8a7b3..9da1c65a 100644
--- a/acb/chebyshev_u_ui.c
+++ b/acb/chebyshev_u_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/contains_int.c b/acb/contains_int.c
index 8206e2af..69b73516 100644
--- a/acb/contains_int.c
+++ b/acb/contains_int.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/cos.c b/acb/cos.c
index d6360a74..5404bc4c 100644
--- a/acb/cos.c
+++ b/acb/cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/cos_pi.c b/acb/cos_pi.c
index aeb49788..a4414b24 100644
--- a/acb/cos_pi.c
+++ b/acb/cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/cot.c b/acb/cot.c
index 37f73c31..8ba4ddd8 100644
--- a/acb/cot.c
+++ b/acb/cot.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/cot_pi.c b/acb/cot_pi.c
index 60a3d05b..40e1e633 100644
--- a/acb/cot_pi.c
+++ b/acb/cot_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/csgn.c b/acb/csgn.c
index ecfda02b..5855ebce 100644
--- a/acb/csgn.c
+++ b/acb/csgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/cube.c b/acb/cube.c
index 67b51dcb..63910733 100644
--- a/acb/cube.c
+++ b/acb/cube.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/digamma.c b/acb/digamma.c
index 2e8e8693..7cc66349 100644
--- a/acb/digamma.c
+++ b/acb/digamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/div.c b/acb/div.c
index 0f48b3c5..670882ff 100644
--- a/acb/div.c
+++ b/acb/div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/exp.c b/acb/exp.c
index 4f4dfd62..bce29af3 100644
--- a/acb/exp.c
+++ b/acb/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/exp_invexp.c b/acb/exp_invexp.c
index 57eee6a3..4164f199 100644
--- a/acb/exp_invexp.c
+++ b/acb/exp_invexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/exp_pi_i.c b/acb/exp_pi_i.c
index 80b881f4..c0f06020 100644
--- a/acb/exp_pi_i.c
+++ b/acb/exp_pi_i.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/fprintd.c b/acb/fprintd.c
index 091d068e..3641bdf9 100644
--- a/acb/fprintd.c
+++ b/acb/fprintd.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/gamma.c b/acb/gamma.c
index 92044a86..7621020a 100644
--- a/acb/gamma.c
+++ b/acb/gamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 #include "acb.h"
diff --git a/acb/get_mag.c b/acb/get_mag.c
index a3943fb4..c4be2385 100644
--- a/acb/get_mag.c
+++ b/acb/get_mag.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/get_mag_lower.c b/acb/get_mag_lower.c
index 9cf62ace..7a1e8b14 100644
--- a/acb/get_mag_lower.c
+++ b/acb/get_mag_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/get_unique_fmpz.c b/acb/get_unique_fmpz.c
index 0f17de91..5a512020 100644
--- a/acb/get_unique_fmpz.c
+++ b/acb/get_unique_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/inlines.c b/acb/inlines.c
index 686f9c74..83fdb489 100644
--- a/acb/inlines.c
+++ b/acb/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ACB_INLINES_C
 #include "acb.h"
diff --git a/acb/inv.c b/acb/inv.c
index 79b08491..9f91b006 100644
--- a/acb/inv.c
+++ b/acb/inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/log.c b/acb/log.c
index eee4834c..a79c4277 100644
--- a/acb/log.c
+++ b/acb/log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/log1p.c b/acb/log1p.c
index 9c32442b..c414d0f4 100644
--- a/acb/log1p.c
+++ b/acb/log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/log_sin_pi.c b/acb/log_sin_pi.c
index 21966f55..ebfe8ea2 100644
--- a/acb/log_sin_pi.c
+++ b/acb/log_sin_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/mul.c b/acb/mul.c
index c65315ac..2edc373e 100644
--- a/acb/mul.c
+++ b/acb/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/mul_naive.c b/acb/mul_naive.c
index a6ec5b70..50488cc4 100644
--- a/acb/mul_naive.c
+++ b/acb/mul_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/polygamma.c b/acb/polygamma.c
index 297e0b7c..af601c40 100644
--- a/acb/polygamma.c
+++ b/acb/polygamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 #include "acb_poly.h"
diff --git a/acb/polylog.c b/acb/polylog.c
index 512ba546..29fff017 100644
--- a/acb/polylog.c
+++ b/acb/polylog.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 #include "acb_poly.h"
diff --git a/acb/pow.c b/acb/pow.c
index 370dae04..7969959e 100644
--- a/acb/pow.c
+++ b/acb/pow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/quadratic_roots_fmpz.c b/acb/quadratic_roots_fmpz.c
index e62c029d..09656cd9 100644
--- a/acb/quadratic_roots_fmpz.c
+++ b/acb/quadratic_roots_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/randtest.c b/acb/randtest.c
index d404b03a..59b51c02 100644
--- a/acb/randtest.c
+++ b/acb/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rel_error_bits.c b/acb/rel_error_bits.c
index aee9a5b7..82ad66f0 100644
--- a/acb/rel_error_bits.c
+++ b/acb/rel_error_bits.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising2_ui.c b/acb/rising2_ui.c
index 5e94fe02..ec45a030 100644
--- a/acb/rising2_ui.c
+++ b/acb/rising2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising2_ui_bs.c b/acb/rising2_ui_bs.c
index ec4e5768..65f5b7e1 100644
--- a/acb/rising2_ui_bs.c
+++ b/acb/rising2_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising2_ui_rs.c b/acb/rising2_ui_rs.c
index 7649842d..d60cb38f 100644
--- a/acb/rising2_ui_rs.c
+++ b/acb/rising2_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/fmpz_poly.h"
 #include "acb.h"
diff --git a/acb/rising_ui.c b/acb/rising_ui.c
index 89418d53..26a49f91 100644
--- a/acb/rising_ui.c
+++ b/acb/rising_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising_ui_bs.c b/acb/rising_ui_bs.c
index 7bf617d0..d617178c 100644
--- a/acb/rising_ui_bs.c
+++ b/acb/rising_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising_ui_get_mag.c b/acb/rising_ui_get_mag.c
index 27444a84..2643e1dd 100644
--- a/acb/rising_ui_get_mag.c
+++ b/acb/rising_ui_get_mag.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising_ui_rec.c b/acb/rising_ui_rec.c
index ef8953ad..0d579fad 100644
--- a/acb/rising_ui_rec.c
+++ b/acb/rising_ui_rec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rising_ui_rs.c b/acb/rising_ui_rs.c
index ef7a8e50..dcda2b22 100644
--- a/acb/rising_ui_rs.c
+++ b/acb/rising_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/fmpz_poly.h"
 #include "acb.h"
diff --git a/acb/root_ui.c b/acb/root_ui.c
index 9e08c6f7..a5ddb5e4 100644
--- a/acb/root_ui.c
+++ b/acb/root_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/rsqrt.c b/acb/rsqrt.c
index 6ef1b8d4..bfa0b4c7 100644
--- a/acb/rsqrt.c
+++ b/acb/rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sgn.c b/acb/sgn.c
index bd1585f4..67d9def2 100644
--- a/acb/sgn.c
+++ b/acb/sgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sin.c b/acb/sin.c
index fc8decaa..8d2f89c8 100644
--- a/acb/sin.c
+++ b/acb/sin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sin_cos.c b/acb/sin_cos.c
index 8f538b5f..91a23b60 100644
--- a/acb/sin_cos.c
+++ b/acb/sin_cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sin_cos_pi.c b/acb/sin_cos_pi.c
index 4e4b92cd..8cccdac8 100644
--- a/acb/sin_cos_pi.c
+++ b/acb/sin_cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sin_pi.c b/acb/sin_pi.c
index 75dac0a6..c4c3b48f 100644
--- a/acb/sin_pi.c
+++ b/acb/sin_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sinc.c b/acb/sinc.c
index 64c1d8f6..5ea7ce80 100644
--- a/acb/sinc.c
+++ b/acb/sinc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/sqrt.c b/acb/sqrt.c
index 56c3ed2c..26d59fab 100644
--- a/acb/sqrt.c
+++ b/acb/sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/submul.c b/acb/submul.c
index e914af64..ecc0435e 100644
--- a/acb/submul.c
+++ b/acb/submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/tan.c b/acb/tan.c
index 3cc8b7fc..c09c2314 100644
--- a/acb/tan.c
+++ b/acb/tan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/tan_pi.c b/acb/tan_pi.c
index 201c15c6..389ba193 100644
--- a/acb/tan_pi.c
+++ b/acb/tan_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-acos.c b/acb/test/t-acos.c
index 7e9d927a..c18e645c 100644
--- a/acb/test/t-acos.c
+++ b/acb/test/t-acos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-acosh.c b/acb/test/t-acosh.c
index 7816f726..cc87fb20 100644
--- a/acb/test/t-acosh.c
+++ b/acb/test/t-acosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-agm1.c b/acb/test/t-agm1.c
index e30eddbf..e64df796 100644
--- a/acb/test/t-agm1.c
+++ b/acb/test/t-agm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-asin.c b/acb/test/t-asin.c
index 2200c3e1..905e1f6a 100644
--- a/acb/test/t-asin.c
+++ b/acb/test/t-asin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-asinh.c b/acb/test/t-asinh.c
index 16f7a2c1..7714ffa1 100644
--- a/acb/test/t-asinh.c
+++ b/acb/test/t-asinh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-atan.c b/acb/test/t-atan.c
index 8c485c1d..d16d30d6 100644
--- a/acb/test/t-atan.c
+++ b/acb/test/t-atan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-atanh.c b/acb/test/t-atanh.c
index d3f1ad0f..f2cb8f91 100644
--- a/acb/test/t-atanh.c
+++ b/acb/test/t-atanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-barnes_g.c b/acb/test/t-barnes_g.c
index 4650c49a..5948de2d 100644
--- a/acb/test/t-barnes_g.c
+++ b/acb/test/t-barnes_g.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-bernoulli_poly_ui.c b/acb/test/t-bernoulli_poly_ui.c
index 8fe4ef7b..49da5808 100644
--- a/acb/test/t-bernoulli_poly_ui.c
+++ b/acb/test/t-bernoulli_poly_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "acb.h"
diff --git a/acb/test/t-chebyshev_t_ui.c b/acb/test/t-chebyshev_t_ui.c
index ede8008e..1ae17636 100644
--- a/acb/test/t-chebyshev_t_ui.c
+++ b/acb/test/t-chebyshev_t_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-chebyshev_u_ui.c b/acb/test/t-chebyshev_u_ui.c
index 2478b9bd..04567c42 100644
--- a/acb/test/t-chebyshev_u_ui.c
+++ b/acb/test/t-chebyshev_u_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-cos_pi.c b/acb/test/t-cos_pi.c
index 640e6bc6..c0de074b 100644
--- a/acb/test/t-cos_pi.c
+++ b/acb/test/t-cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-cot.c b/acb/test/t-cot.c
index baee0a74..7f36ad45 100644
--- a/acb/test/t-cot.c
+++ b/acb/test/t-cot.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-cot_pi.c b/acb/test/t-cot_pi.c
index 5a827b89..e512e155 100644
--- a/acb/test/t-cot_pi.c
+++ b/acb/test/t-cot_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-coth.c b/acb/test/t-coth.c
index 4e11ae80..e63b0594 100644
--- a/acb/test/t-coth.c
+++ b/acb/test/t-coth.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-csgn.c b/acb/test/t-csgn.c
index cad25c16..3667c454 100644
--- a/acb/test/t-csgn.c
+++ b/acb/test/t-csgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-digamma.c b/acb/test/t-digamma.c
index 3ab7b717..227c600d 100644
--- a/acb/test/t-digamma.c
+++ b/acb/test/t-digamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-div.c b/acb/test/t-div.c
index cd4ed45d..97d37dbe 100644
--- a/acb/test/t-div.c
+++ b/acb/test/t-div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-exp.c b/acb/test/t-exp.c
index e310b84a..16c607eb 100644
--- a/acb/test/t-exp.c
+++ b/acb/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-exp_invexp.c b/acb/test/t-exp_invexp.c
index ffead08b..3dfde6a4 100644
--- a/acb/test/t-exp_invexp.c
+++ b/acb/test/t-exp_invexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-exp_pi_i.c b/acb/test/t-exp_pi_i.c
index 10e85fbb..12d7fac0 100644
--- a/acb/test/t-exp_pi_i.c
+++ b/acb/test/t-exp_pi_i.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-gamma.c b/acb/test/t-gamma.c
index db82623a..89396cf9 100644
--- a/acb/test/t-gamma.c
+++ b/acb/test/t-gamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-lgamma.c b/acb/test/t-lgamma.c
index ce2869e1..ab8f03fe 100644
--- a/acb/test/t-lgamma.c
+++ b/acb/test/t-lgamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-log.c b/acb/test/t-log.c
index 3bb22f65..a599edba 100644
--- a/acb/test/t-log.c
+++ b/acb/test/t-log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-log1p.c b/acb/test/t-log1p.c
index 9dab32be..897ed380 100644
--- a/acb/test/t-log1p.c
+++ b/acb/test/t-log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-log_sin_pi.c b/acb/test/t-log_sin_pi.c
index a1cd4799..78bf7070 100644
--- a/acb/test/t-log_sin_pi.c
+++ b/acb/test/t-log_sin_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-mul.c b/acb/test/t-mul.c
index d5f79490..64026d7b 100644
--- a/acb/test/t-mul.c
+++ b/acb/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-mul_naive.c b/acb/test/t-mul_naive.c
index 2ed6ba8f..5be3501f 100644
--- a/acb/test/t-mul_naive.c
+++ b/acb/test/t-mul_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-polygamma.c b/acb/test/t-polygamma.c
index 42b68444..fd3e6d2d 100644
--- a/acb/test/t-polygamma.c
+++ b/acb/test/t-polygamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-pow.c b/acb/test/t-pow.c
index 2208530e..c793d584 100644
--- a/acb/test/t-pow.c
+++ b/acb/test/t-pow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-pow_fmpz.c b/acb/test/t-pow_fmpz.c
index 8b6f401c..19aee899 100644
--- a/acb/test/t-pow_fmpz.c
+++ b/acb/test/t-pow_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-quadratic_roots_fmpz.c b/acb/test/t-quadratic_roots_fmpz.c
index b17538b5..a5e071a1 100644
--- a/acb/test/t-quadratic_roots_fmpz.c
+++ b/acb/test/t-quadratic_roots_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rel_accuracy_bits.c b/acb/test/t-rel_accuracy_bits.c
index 0588dcb6..ab40e8c7 100644
--- a/acb/test/t-rel_accuracy_bits.c
+++ b/acb/test/t-rel_accuracy_bits.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rgamma.c b/acb/test/t-rgamma.c
index e8ec9ced..d93f027b 100644
--- a/acb/test/t-rgamma.c
+++ b/acb/test/t-rgamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rising2_ui.c b/acb/test/t-rising2_ui.c
index 0c8014f9..3515ea3e 100644
--- a/acb/test/t-rising2_ui.c
+++ b/acb/test/t-rising2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "acb_poly.h"
diff --git a/acb/test/t-rising2_ui_bs.c b/acb/test/t-rising2_ui_bs.c
index 856f1f8e..d22468e3 100644
--- a/acb/test/t-rising2_ui_bs.c
+++ b/acb/test/t-rising2_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "acb_poly.h"
diff --git a/acb/test/t-rising2_ui_rs.c b/acb/test/t-rising2_ui_rs.c
index 8a8ee750..b2746de5 100644
--- a/acb/test/t-rising2_ui_rs.c
+++ b/acb/test/t-rising2_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "acb_poly.h"
diff --git a/acb/test/t-rising_ui.c b/acb/test/t-rising_ui.c
index 25e1b432..f1ac4c2f 100644
--- a/acb/test/t-rising_ui.c
+++ b/acb/test/t-rising_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rising_ui_bs.c b/acb/test/t-rising_ui_bs.c
index 43d2d5aa..4784a36c 100644
--- a/acb/test/t-rising_ui_bs.c
+++ b/acb/test/t-rising_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rising_ui_get_mag.c b/acb/test/t-rising_ui_get_mag.c
index 9c9dd8b4..319d1e7a 100644
--- a/acb/test/t-rising_ui_get_mag.c
+++ b/acb/test/t-rising_ui_get_mag.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rising_ui_rec.c b/acb/test/t-rising_ui_rec.c
index 7ff8f495..83d69cad 100644
--- a/acb/test/t-rising_ui_rec.c
+++ b/acb/test/t-rising_ui_rec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rising_ui_rs.c b/acb/test/t-rising_ui_rs.c
index 764fb1a3..d8df1c91 100644
--- a/acb/test/t-rising_ui_rs.c
+++ b/acb/test/t-rising_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-root_ui.c b/acb/test/t-root_ui.c
index 6a2c9376..c897f508 100644
--- a/acb/test/t-root_ui.c
+++ b/acb/test/t-root_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-rsqrt.c b/acb/test/t-rsqrt.c
index 26f25bef..aade0a4c 100644
--- a/acb/test/t-rsqrt.c
+++ b/acb/test/t-rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sgn.c b/acb/test/t-sgn.c
index ed6614ad..acab60c2 100644
--- a/acb/test/t-sgn.c
+++ b/acb/test/t-sgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sin_cos.c b/acb/test/t-sin_cos.c
index 067413cc..b1e21f92 100644
--- a/acb/test/t-sin_cos.c
+++ b/acb/test/t-sin_cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sin_pi.c b/acb/test/t-sin_pi.c
index 8ca930e9..0b44f1fd 100644
--- a/acb/test/t-sin_pi.c
+++ b/acb/test/t-sin_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sinc.c b/acb/test/t-sinc.c
index aa08bafb..4940f24b 100644
--- a/acb/test/t-sinc.c
+++ b/acb/test/t-sinc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sinh_cosh.c b/acb/test/t-sinh_cosh.c
index 47f9ff1e..7a7454a7 100644
--- a/acb/test/t-sinh_cosh.c
+++ b/acb/test/t-sinh_cosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-sqrt.c b/acb/test/t-sqrt.c
index fa0f9c7d..f080c113 100644
--- a/acb/test/t-sqrt.c
+++ b/acb/test/t-sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-tan.c b/acb/test/t-tan.c
index 0cafb91f..7fccdd01 100644
--- a/acb/test/t-tan.c
+++ b/acb/test/t-tan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-tan_pi.c b/acb/test/t-tan_pi.c
index 78197a53..b9b419b9 100644
--- a/acb/test/t-tan_pi.c
+++ b/acb/test/t-tan_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-tanh.c b/acb/test/t-tanh.c
index eed70951..0c3f1ccf 100644
--- a/acb/test/t-tanh.c
+++ b/acb/test/t-tanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/test/t-zeta.c b/acb/test/t-zeta.c
index 8fa2375b..3cfc3297 100644
--- a/acb/test/t-zeta.c
+++ b/acb/test/t-zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/vec_sort_pretty.c b/acb/vec_sort_pretty.c
index 616527c7..eeafe92b 100644
--- a/acb/vec_sort_pretty.c
+++ b/acb/vec_sort_pretty.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 
diff --git a/acb/zeta.c b/acb/zeta.c
index afb8e304..68f18d88 100644
--- a/acb/zeta.c
+++ b/acb/zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb.h"
 #include "acb_poly.h"
diff --git a/acb_calc.h b/acb_calc.h
index 6f8e4e30..2bb25129 100644
--- a/acb_calc.h
+++ b/acb_calc.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_CALC_H
 #define ACB_CALC_H
diff --git a/acb_calc/cauchy_bound.c b/acb_calc/cauchy_bound.c
index e08d479f..6571a897 100644
--- a/acb_calc/cauchy_bound.c
+++ b/acb_calc/cauchy_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_calc.h"
 
diff --git a/acb_calc/integrate_taylor.c b/acb_calc/integrate_taylor.c
index 60dcb021..b22cf968 100644
--- a/acb_calc/integrate_taylor.c
+++ b/acb_calc/integrate_taylor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_calc.h"
 #include "math.h"
diff --git a/acb_calc/test/t-cauchy_bound.c b/acb_calc/test/t-cauchy_bound.c
index 7a09a130..b47a7b38 100644
--- a/acb_calc/test/t-cauchy_bound.c
+++ b/acb_calc/test/t-cauchy_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_calc.h"
 
diff --git a/acb_calc/test/t-integrate_taylor.c b/acb_calc/test/t-integrate_taylor.c
index 2a945136..48399db4 100644
--- a/acb_calc/test/t-integrate_taylor.c
+++ b/acb_calc/test/t-integrate_taylor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_calc.h"
 
diff --git a/acb_dirichlet.h b/acb_dirichlet.h
index 214d2f3f..da8d5498 100644
--- a/acb_dirichlet.h
+++ b/acb_dirichlet.h
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Jonathan Bober
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_DIRICHLET_H
 #define ACB_DIRICHLET_H
diff --git a/acb_dirichlet/chi.c b/acb_dirichlet/chi.c
index b0dcdba2..182b0540 100644
--- a/acb_dirichlet/chi.c
+++ b/acb_dirichlet/chi.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Jonathan Bober
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/eta.c b/acb_dirichlet/eta.c
index a61995b7..4c7f0d4e 100644
--- a/acb_dirichlet/eta.c
+++ b/acb_dirichlet/eta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/euler_product_real_ui.c b/acb_dirichlet/euler_product_real_ui.c
index 627f5a1c..12d5d022 100644
--- a/acb_dirichlet/euler_product_real_ui.c
+++ b/acb_dirichlet/euler_product_real_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/group_clear.c b/acb_dirichlet/group_clear.c
index 2e1830e8..3fe83043 100644
--- a/acb_dirichlet/group_clear.c
+++ b/acb_dirichlet/group_clear.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Jonathan Bober
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/group_init.c b/acb_dirichlet/group_init.c
index c71304ac..a57ff083 100644
--- a/acb_dirichlet/group_init.c
+++ b/acb_dirichlet/group_init.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Jonathan Bober
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/l.c b/acb_dirichlet/l.c
index 5d175f8a..645c36e5 100644
--- a/acb_dirichlet/l.c
+++ b/acb_dirichlet/l.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/test/t-chi.c b/acb_dirichlet/test/t-chi.c
index 4942c50a..07c2ff5c 100644
--- a/acb_dirichlet/test/t-chi.c
+++ b/acb_dirichlet/test/t-chi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_dirichlet/test/t-euler_product_real_ui.c b/acb_dirichlet/test/t-euler_product_real_ui.c
index dd527abe..3a564aeb 100644
--- a/acb_dirichlet/test/t-euler_product_real_ui.c
+++ b/acb_dirichlet/test/t-euler_product_real_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_dirichlet.h"
 
diff --git a/acb_hypgeom.h b/acb_hypgeom.h
index 7810ab94..f6776ba2 100644
--- a/acb_hypgeom.h
+++ b/acb_hypgeom.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_HYPGEOM_H
 #define ACB_HYPGEOM_H
diff --git a/acb_hypgeom/0f1.c b/acb_hypgeom/0f1.c
index d3eb945a..e2c063b8 100644
--- a/acb_hypgeom/0f1.c
+++ b/acb_hypgeom/0f1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1.c b/acb_hypgeom/2f1.c
index 174cb0e5..0b307dbd 100644
--- a/acb_hypgeom/2f1.c
+++ b/acb_hypgeom/2f1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_choose.c b/acb_hypgeom/2f1_choose.c
index 34b532b3..2c2aa897 100644
--- a/acb_hypgeom/2f1_choose.c
+++ b/acb_hypgeom/2f1_choose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_continuation.c b/acb_hypgeom/2f1_continuation.c
index ff87d079..deddc7c3 100644
--- a/acb_hypgeom/2f1_continuation.c
+++ b/acb_hypgeom/2f1_continuation.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_corner.c b/acb_hypgeom/2f1_corner.c
index 9cf518e5..8d0243fa 100644
--- a/acb_hypgeom/2f1_corner.c
+++ b/acb_hypgeom/2f1_corner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_direct.c b/acb_hypgeom/2f1_direct.c
index 7bc25d77..950fe4f3 100644
--- a/acb_hypgeom/2f1_direct.c
+++ b/acb_hypgeom/2f1_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_series_direct.c b/acb_hypgeom/2f1_series_direct.c
index 7cb767a4..40ad0281 100644
--- a/acb_hypgeom/2f1_series_direct.c
+++ b/acb_hypgeom/2f1_series_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/2f1_transform.c b/acb_hypgeom/2f1_transform.c
index 28849e7e..96f4e3c0 100644
--- a/acb_hypgeom/2f1_transform.c
+++ b/acb_hypgeom/2f1_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/airy.c b/acb_hypgeom/airy.c
index 94a8f692..c0af1148 100644
--- a/acb_hypgeom/airy.c
+++ b/acb_hypgeom/airy.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "acb_hypgeom.h"
diff --git a/acb_hypgeom/airy_asymp.c b/acb_hypgeom/airy_asymp.c
index 37769e62..8f4e60df 100644
--- a/acb_hypgeom/airy_asymp.c
+++ b/acb_hypgeom/airy_asymp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/airy_bound.c b/acb_hypgeom/airy_bound.c
index 0d6e50c4..48d7dde0 100644
--- a/acb_hypgeom/airy_bound.c
+++ b/acb_hypgeom/airy_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/airy_direct.c b/acb_hypgeom/airy_direct.c
index da565922..29f6f963 100644
--- a/acb_hypgeom/airy_direct.c
+++ b/acb_hypgeom/airy_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/airy_jet.c b/acb_hypgeom/airy_jet.c
index 6cbfb2f6..6bd7aab6 100644
--- a/acb_hypgeom/airy_jet.c
+++ b/acb_hypgeom/airy_jet.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/airy_series.c b/acb_hypgeom/airy_series.c
index 8259dc9d..9705bf5f 100644
--- a/acb_hypgeom/airy_series.c
+++ b/acb_hypgeom/airy_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/bessel_i.c b/acb_hypgeom/bessel_i.c
index c9e11a97..898cfe23 100644
--- a/acb_hypgeom/bessel_i.c
+++ b/acb_hypgeom/bessel_i.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014-2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/bessel_j.c b/acb_hypgeom/bessel_j.c
index f493fc42..db74a8cc 100644
--- a/acb_hypgeom/bessel_j.c
+++ b/acb_hypgeom/bessel_j.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014-2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/bessel_k.c b/acb_hypgeom/bessel_k.c
index ac588341..c8cd0196 100644
--- a/acb_hypgeom/bessel_k.c
+++ b/acb_hypgeom/bessel_k.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/bessel_y.c b/acb_hypgeom/bessel_y.c
index 4914d86d..f7961c5a 100644
--- a/acb_hypgeom/bessel_y.c
+++ b/acb_hypgeom/bessel_y.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/chebyshev_t.c b/acb_hypgeom/chebyshev_t.c
index 44f3269f..369cb016 100644
--- a/acb_hypgeom/chebyshev_t.c
+++ b/acb_hypgeom/chebyshev_t.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/chebyshev_u.c b/acb_hypgeom/chebyshev_u.c
index 57274065..1c5451d7 100644
--- a/acb_hypgeom/chebyshev_u.c
+++ b/acb_hypgeom/chebyshev_u.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/chi.c b/acb_hypgeom/chi.c
index e9a3365b..ef45b14a 100644
--- a/acb_hypgeom/chi.c
+++ b/acb_hypgeom/chi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/chi_series.c b/acb_hypgeom/chi_series.c
index 6e2f0a5f..94173590 100644
--- a/acb_hypgeom/chi_series.c
+++ b/acb_hypgeom/chi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/ci.c b/acb_hypgeom/ci.c
index cebbe326..a1239ba7 100644
--- a/acb_hypgeom/ci.c
+++ b/acb_hypgeom/ci.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/ci_series.c b/acb_hypgeom/ci_series.c
index b7619bd9..b4e2a450 100644
--- a/acb_hypgeom/ci_series.c
+++ b/acb_hypgeom/ci_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/ei.c b/acb_hypgeom/ei.c
index a4524d9a..557b26d2 100644
--- a/acb_hypgeom/ei.c
+++ b/acb_hypgeom/ei.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/ei_series.c b/acb_hypgeom/ei_series.c
index 8653a782..0a706346 100644
--- a/acb_hypgeom/ei_series.c
+++ b/acb_hypgeom/ei_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erf.c b/acb_hypgeom/erf.c
index a1839180..7a7ff953 100644
--- a/acb_hypgeom/erf.c
+++ b/acb_hypgeom/erf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erf_series.c b/acb_hypgeom/erf_series.c
index 3baf14e1..519869ec 100644
--- a/acb_hypgeom/erf_series.c
+++ b/acb_hypgeom/erf_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erfc.c b/acb_hypgeom/erfc.c
index 9dd0ddaf..6bca6810 100644
--- a/acb_hypgeom/erfc.c
+++ b/acb_hypgeom/erfc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erfc_series.c b/acb_hypgeom/erfc_series.c
index b7fdc9cb..086c99be 100644
--- a/acb_hypgeom/erfc_series.c
+++ b/acb_hypgeom/erfc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erfi.c b/acb_hypgeom/erfi.c
index 4f7b88b6..c477c7a1 100644
--- a/acb_hypgeom/erfi.c
+++ b/acb_hypgeom/erfi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/erfi_series.c b/acb_hypgeom/erfi_series.c
index a2b0af87..29ff6ea1 100644
--- a/acb_hypgeom/erfi_series.c
+++ b/acb_hypgeom/erfi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/expint.c b/acb_hypgeom/expint.c
index f1e5da25..a898137c 100644
--- a/acb_hypgeom/expint.c
+++ b/acb_hypgeom/expint.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/fresnel.c b/acb_hypgeom/fresnel.c
index df2c4903..78be9113 100644
--- a/acb_hypgeom/fresnel.c
+++ b/acb_hypgeom/fresnel.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/fresnel_series.c b/acb_hypgeom/fresnel_series.c
index 9d0ca963..a287ffa1 100644
--- a/acb_hypgeom/fresnel_series.c
+++ b/acb_hypgeom/fresnel_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/gamma_lower.c b/acb_hypgeom/gamma_lower.c
index 379e3e22..73cfaa24 100644
--- a/acb_hypgeom/gamma_lower.c
+++ b/acb_hypgeom/gamma_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/gamma_upper.c b/acb_hypgeom/gamma_upper.c
index d8f02909..42ef9343 100644
--- a/acb_hypgeom/gamma_upper.c
+++ b/acb_hypgeom/gamma_upper.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/gamma_upper_series.c b/acb_hypgeom/gamma_upper_series.c
index 95028dea..3a453b39 100644
--- a/acb_hypgeom/gamma_upper_series.c
+++ b/acb_hypgeom/gamma_upper_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_hypgeom.h"
diff --git a/acb_hypgeom/gegenbauer_c.c b/acb_hypgeom/gegenbauer_c.c
index 5435a128..85c5f3f0 100644
--- a/acb_hypgeom/gegenbauer_c.c
+++ b/acb_hypgeom/gegenbauer_c.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/hermite_h.c b/acb_hypgeom/hermite_h.c
index 18d13470..9070b309 100644
--- a/acb_hypgeom/hermite_h.c
+++ b/acb_hypgeom/hermite_h.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/jacobi_p.c b/acb_hypgeom/jacobi_p.c
index b8e67c9e..a3fe0d6b 100644
--- a/acb_hypgeom/jacobi_p.c
+++ b/acb_hypgeom/jacobi_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/laguerre_l.c b/acb_hypgeom/laguerre_l.c
index f5173612..265d4c0d 100644
--- a/acb_hypgeom/laguerre_l.c
+++ b/acb_hypgeom/laguerre_l.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/legendre_p.c b/acb_hypgeom/legendre_p.c
index e63d73d5..8a2c3305 100644
--- a/acb_hypgeom/legendre_p.c
+++ b/acb_hypgeom/legendre_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/legendre_p_uiui_rec.c b/acb_hypgeom/legendre_p_uiui_rec.c
index 79fcf7ae..6bab0c48 100644
--- a/acb_hypgeom/legendre_p_uiui_rec.c
+++ b/acb_hypgeom/legendre_p_uiui_rec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/legendre_q.c b/acb_hypgeom/legendre_q.c
index b9c30f19..391bafd7 100644
--- a/acb_hypgeom/legendre_q.c
+++ b/acb_hypgeom/legendre_q.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/li.c b/acb_hypgeom/li.c
index 43cf2e15..20256950 100644
--- a/acb_hypgeom/li.c
+++ b/acb_hypgeom/li.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/li_series.c b/acb_hypgeom/li_series.c
index 2cfb8d62..7c3cd401 100644
--- a/acb_hypgeom/li_series.c
+++ b/acb_hypgeom/li_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/m.c b/acb_hypgeom/m.c
index 6c452315..54db666b 100644
--- a/acb_hypgeom/m.c
+++ b/acb_hypgeom/m.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq.c b/acb_hypgeom/pfq.c
index 9602b09b..165297ff 100644
--- a/acb_hypgeom/pfq.c
+++ b/acb_hypgeom/pfq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_bound_factor.c b/acb_hypgeom/pfq_bound_factor.c
index 70a2e2e7..eb143041 100644
--- a/acb_hypgeom/pfq_bound_factor.c
+++ b/acb_hypgeom/pfq_bound_factor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_choose_n.c b/acb_hypgeom/pfq_choose_n.c
index c2ba8056..e50f1260 100644
--- a/acb_hypgeom/pfq_choose_n.c
+++ b/acb_hypgeom/pfq_choose_n.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_direct.c b/acb_hypgeom/pfq_direct.c
index 3f5fdb2e..3ea0f522 100644
--- a/acb_hypgeom/pfq_direct.c
+++ b/acb_hypgeom/pfq_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_series_direct.c b/acb_hypgeom/pfq_series_direct.c
index a160f366..b76fffbf 100644
--- a/acb_hypgeom/pfq_series_direct.c
+++ b/acb_hypgeom/pfq_series_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_sum.c b/acb_hypgeom/pfq_sum.c
index 0a83a1c8..6c958234 100644
--- a/acb_hypgeom/pfq_sum.c
+++ b/acb_hypgeom/pfq_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_sum_bs.c b/acb_hypgeom/pfq_sum_bs.c
index 1315c8bb..16962a24 100644
--- a/acb_hypgeom/pfq_sum_bs.c
+++ b/acb_hypgeom/pfq_sum_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_sum_fme.c b/acb_hypgeom/pfq_sum_fme.c
index bd321c2e..206fd066 100644
--- a/acb_hypgeom/pfq_sum_fme.c
+++ b/acb_hypgeom/pfq_sum_fme.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_sum_forward.c b/acb_hypgeom/pfq_sum_forward.c
index a207d93b..a426e5a8 100644
--- a/acb_hypgeom/pfq_sum_forward.c
+++ b/acb_hypgeom/pfq_sum_forward.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/pfq_sum_rs.c b/acb_hypgeom/pfq_sum_rs.c
index 7c3d11f4..969d21d4 100644
--- a/acb_hypgeom/pfq_sum_rs.c
+++ b/acb_hypgeom/pfq_sum_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/shi.c b/acb_hypgeom/shi.c
index 22fc203b..158ab4e1 100644
--- a/acb_hypgeom/shi.c
+++ b/acb_hypgeom/shi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/shi_series.c b/acb_hypgeom/shi_series.c
index 8bf844b7..7ded4c25 100644
--- a/acb_hypgeom/shi_series.c
+++ b/acb_hypgeom/shi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/si.c b/acb_hypgeom/si.c
index 76d1bfad..49f5356b 100644
--- a/acb_hypgeom/si.c
+++ b/acb_hypgeom/si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/si_series.c b/acb_hypgeom/si_series.c
index 4a9e440b..bfba7543 100644
--- a/acb_hypgeom/si_series.c
+++ b/acb_hypgeom/si_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/spherical_y.c b/acb_hypgeom/spherical_y.c
index b6f2aaa2..321ede50 100644
--- a/acb_hypgeom/spherical_y.c
+++ b/acb_hypgeom/spherical_y.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-0f1.c b/acb_hypgeom/test/t-0f1.c
index e6578d1b..68b53a25 100644
--- a/acb_hypgeom/test/t-0f1.c
+++ b/acb_hypgeom/test/t-0f1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-2f1.c b/acb_hypgeom/test/t-2f1.c
index 7615b322..c4666fcd 100644
--- a/acb_hypgeom/test/t-2f1.c
+++ b/acb_hypgeom/test/t-2f1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-2f1_continuation.c b/acb_hypgeom/test/t-2f1_continuation.c
index 37ddaa01..71821bfa 100644
--- a/acb_hypgeom/test/t-2f1_continuation.c
+++ b/acb_hypgeom/test/t-2f1_continuation.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-airy.c b/acb_hypgeom/test/t-airy.c
index 99938838..84a031f9 100644
--- a/acb_hypgeom/test/t-airy.c
+++ b/acb_hypgeom/test/t-airy.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-airy_bound.c b/acb_hypgeom/test/t-airy_bound.c
index 3507ebd5..de511baa 100644
--- a/acb_hypgeom/test/t-airy_bound.c
+++ b/acb_hypgeom/test/t-airy_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-airy_series.c b/acb_hypgeom/test/t-airy_series.c
index 1f9e2fbf..a4111348 100644
--- a/acb_hypgeom/test/t-airy_series.c
+++ b/acb_hypgeom/test/t-airy_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-bessel_i.c b/acb_hypgeom/test/t-bessel_i.c
index 398de651..dc366667 100644
--- a/acb_hypgeom/test/t-bessel_i.c
+++ b/acb_hypgeom/test/t-bessel_i.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-bessel_j.c b/acb_hypgeom/test/t-bessel_j.c
index 33172a0f..91f95809 100644
--- a/acb_hypgeom/test/t-bessel_j.c
+++ b/acb_hypgeom/test/t-bessel_j.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-bessel_k.c b/acb_hypgeom/test/t-bessel_k.c
index 1702964a..350e8d62 100644
--- a/acb_hypgeom/test/t-bessel_k.c
+++ b/acb_hypgeom/test/t-bessel_k.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-bessel_y.c b/acb_hypgeom/test/t-bessel_y.c
index ccbaac77..544ddfe3 100644
--- a/acb_hypgeom/test/t-bessel_y.c
+++ b/acb_hypgeom/test/t-bessel_y.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-chebyshev_t.c b/acb_hypgeom/test/t-chebyshev_t.c
index 7c1e4860..c1875fae 100644
--- a/acb_hypgeom/test/t-chebyshev_t.c
+++ b/acb_hypgeom/test/t-chebyshev_t.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-chebyshev_u.c b/acb_hypgeom/test/t-chebyshev_u.c
index 8e5c1e33..760bd439 100644
--- a/acb_hypgeom/test/t-chebyshev_u.c
+++ b/acb_hypgeom/test/t-chebyshev_u.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-chi.c b/acb_hypgeom/test/t-chi.c
index 07ca1ffc..ed0b055c 100644
--- a/acb_hypgeom/test/t-chi.c
+++ b/acb_hypgeom/test/t-chi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-chi_series.c b/acb_hypgeom/test/t-chi_series.c
index b6b634a0..5966a68e 100644
--- a/acb_hypgeom/test/t-chi_series.c
+++ b/acb_hypgeom/test/t-chi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-ci.c b/acb_hypgeom/test/t-ci.c
index 17820f1c..46a17fc7 100644
--- a/acb_hypgeom/test/t-ci.c
+++ b/acb_hypgeom/test/t-ci.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-ci_series.c b/acb_hypgeom/test/t-ci_series.c
index 4f5a3ebc..646df98a 100644
--- a/acb_hypgeom/test/t-ci_series.c
+++ b/acb_hypgeom/test/t-ci_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-ei.c b/acb_hypgeom/test/t-ei.c
index 02ffb1bd..7a736b2a 100644
--- a/acb_hypgeom/test/t-ei.c
+++ b/acb_hypgeom/test/t-ei.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-ei_series.c b/acb_hypgeom/test/t-ei_series.c
index f91963ff..2e84d9e8 100644
--- a/acb_hypgeom/test/t-ei_series.c
+++ b/acb_hypgeom/test/t-ei_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-erf.c b/acb_hypgeom/test/t-erf.c
index faee260f..5c7d17ed 100644
--- a/acb_hypgeom/test/t-erf.c
+++ b/acb_hypgeom/test/t-erf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-erf_series.c b/acb_hypgeom/test/t-erf_series.c
index 4dfb9227..1aeb4674 100644
--- a/acb_hypgeom/test/t-erf_series.c
+++ b/acb_hypgeom/test/t-erf_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-erfc.c b/acb_hypgeom/test/t-erfc.c
index 6f2860b9..d8f4c305 100644
--- a/acb_hypgeom/test/t-erfc.c
+++ b/acb_hypgeom/test/t-erfc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-erfc_series.c b/acb_hypgeom/test/t-erfc_series.c
index b9653249..89b7396a 100644
--- a/acb_hypgeom/test/t-erfc_series.c
+++ b/acb_hypgeom/test/t-erfc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-erfi_series.c b/acb_hypgeom/test/t-erfi_series.c
index 5df14deb..61f1169e 100644
--- a/acb_hypgeom/test/t-erfi_series.c
+++ b/acb_hypgeom/test/t-erfi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-fresnel.c b/acb_hypgeom/test/t-fresnel.c
index 6ec14782..ad204d4a 100644
--- a/acb_hypgeom/test/t-fresnel.c
+++ b/acb_hypgeom/test/t-fresnel.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-fresnel_series.c b/acb_hypgeom/test/t-fresnel_series.c
index a3b71ee5..cbb27190 100644
--- a/acb_hypgeom/test/t-fresnel_series.c
+++ b/acb_hypgeom/test/t-fresnel_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-gamma_lower.c b/acb_hypgeom/test/t-gamma_lower.c
index 480d6414..e49895c9 100644
--- a/acb_hypgeom/test/t-gamma_lower.c
+++ b/acb_hypgeom/test/t-gamma_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-gamma_upper.c b/acb_hypgeom/test/t-gamma_upper.c
index feff5b3f..062414ee 100644
--- a/acb_hypgeom/test/t-gamma_upper.c
+++ b/acb_hypgeom/test/t-gamma_upper.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-gamma_upper_series.c b/acb_hypgeom/test/t-gamma_upper_series.c
index 50d7c02c..41fe6f0d 100644
--- a/acb_hypgeom/test/t-gamma_upper_series.c
+++ b/acb_hypgeom/test/t-gamma_upper_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_hypgeom.h"
diff --git a/acb_hypgeom/test/t-gegenbauer_c.c b/acb_hypgeom/test/t-gegenbauer_c.c
index b1f43bc7..930c4c7e 100644
--- a/acb_hypgeom/test/t-gegenbauer_c.c
+++ b/acb_hypgeom/test/t-gegenbauer_c.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-hermite_h.c b/acb_hypgeom/test/t-hermite_h.c
index 682fd6d0..4417d944 100644
--- a/acb_hypgeom/test/t-hermite_h.c
+++ b/acb_hypgeom/test/t-hermite_h.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-jacobi_p.c b/acb_hypgeom/test/t-jacobi_p.c
index 9450b22b..fc71ea6c 100644
--- a/acb_hypgeom/test/t-jacobi_p.c
+++ b/acb_hypgeom/test/t-jacobi_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-laguerre_l.c b/acb_hypgeom/test/t-laguerre_l.c
index 72762760..8f20ec16 100644
--- a/acb_hypgeom/test/t-laguerre_l.c
+++ b/acb_hypgeom/test/t-laguerre_l.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-legendre_p.c b/acb_hypgeom/test/t-legendre_p.c
index fac53f90..7bc32e1c 100644
--- a/acb_hypgeom/test/t-legendre_p.c
+++ b/acb_hypgeom/test/t-legendre_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-legendre_q.c b/acb_hypgeom/test/t-legendre_q.c
index 2cdde62e..365844da 100644
--- a/acb_hypgeom/test/t-legendre_q.c
+++ b/acb_hypgeom/test/t-legendre_q.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-li_series.c b/acb_hypgeom/test/t-li_series.c
index ad764d76..3ed15e2e 100644
--- a/acb_hypgeom/test/t-li_series.c
+++ b/acb_hypgeom/test/t-li_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-m.c b/acb_hypgeom/test/t-m.c
index 7a242746..a7ab7ab3 100644
--- a/acb_hypgeom/test/t-m.c
+++ b/acb_hypgeom/test/t-m.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq.c b/acb_hypgeom/test/t-pfq.c
index 56dd536d..8bfaaa86 100644
--- a/acb_hypgeom/test/t-pfq.c
+++ b/acb_hypgeom/test/t-pfq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq_series_direct.c b/acb_hypgeom/test/t-pfq_series_direct.c
index 6068b8c5..6e1a1acd 100644
--- a/acb_hypgeom/test/t-pfq_series_direct.c
+++ b/acb_hypgeom/test/t-pfq_series_direct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq_sum_bs.c b/acb_hypgeom/test/t-pfq_sum_bs.c
index 05877783..a4224e87 100644
--- a/acb_hypgeom/test/t-pfq_sum_bs.c
+++ b/acb_hypgeom/test/t-pfq_sum_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq_sum_fme.c b/acb_hypgeom/test/t-pfq_sum_fme.c
index f69e2920..4940315f 100644
--- a/acb_hypgeom/test/t-pfq_sum_fme.c
+++ b/acb_hypgeom/test/t-pfq_sum_fme.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq_sum_invz.c b/acb_hypgeom/test/t-pfq_sum_invz.c
index c93ff7b2..c60cadfd 100644
--- a/acb_hypgeom/test/t-pfq_sum_invz.c
+++ b/acb_hypgeom/test/t-pfq_sum_invz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-pfq_sum_rs.c b/acb_hypgeom/test/t-pfq_sum_rs.c
index 6ef2b4d1..72037888 100644
--- a/acb_hypgeom/test/t-pfq_sum_rs.c
+++ b/acb_hypgeom/test/t-pfq_sum_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-shi_series.c b/acb_hypgeom/test/t-shi_series.c
index 7bd8bd72..14eb132a 100644
--- a/acb_hypgeom/test/t-shi_series.c
+++ b/acb_hypgeom/test/t-shi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-si.c b/acb_hypgeom/test/t-si.c
index 93fc42cb..b5f2c391 100644
--- a/acb_hypgeom/test/t-si.c
+++ b/acb_hypgeom/test/t-si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-si_series.c b/acb_hypgeom/test/t-si_series.c
index 5b130d55..51bcd659 100644
--- a/acb_hypgeom/test/t-si_series.c
+++ b/acb_hypgeom/test/t-si_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-spherical_y.c b/acb_hypgeom/test/t-spherical_y.c
index 2cd44f1b..b60950f0 100644
--- a/acb_hypgeom/test/t-spherical_y.c
+++ b/acb_hypgeom/test/t-spherical_y.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-u.c b/acb_hypgeom/test/t-u.c
index 8f2adfbd..596cf9bb 100644
--- a/acb_hypgeom/test/t-u.c
+++ b/acb_hypgeom/test/t-u.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/test/t-u_asymp.c b/acb_hypgeom/test/t-u_asymp.c
index 10597e20..91b3f98a 100644
--- a/acb_hypgeom/test/t-u_asymp.c
+++ b/acb_hypgeom/test/t-u_asymp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/u.c b/acb_hypgeom/u.c
index 6399a9f4..14806677 100644
--- a/acb_hypgeom/u.c
+++ b/acb_hypgeom/u.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/u_asymp.c b/acb_hypgeom/u_asymp.c
index 36a5b42c..9f3bf5cf 100644
--- a/acb_hypgeom/u_asymp.c
+++ b/acb_hypgeom/u_asymp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_hypgeom/u_use_asymp.c b/acb_hypgeom/u_use_asymp.c
index e9dbdfdb..99cd4c31 100644
--- a/acb_hypgeom/u_use_asymp.c
+++ b/acb_hypgeom/u_use_asymp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_hypgeom.h"
 
diff --git a/acb_mat.h b/acb_mat.h
index dd4c1bdb..acc1f6c9 100644
--- a/acb_mat.h
+++ b/acb_mat.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_MAT_H
 #define ACB_MAT_H
diff --git a/acb_mat/add.c b/acb_mat/add.c
index 0aae0bea..fd6d7ffc 100644
--- a/acb_mat/add.c
+++ b/acb_mat/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/bound_frobenius_norm.c b/acb_mat/bound_frobenius_norm.c
index 9b1a8897..2f4ed324 100644
--- a/acb_mat/bound_frobenius_norm.c
+++ b/acb_mat/bound_frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/bound_inf_norm.c b/acb_mat/bound_inf_norm.c
index 3f7e89fd..538818d6 100644
--- a/acb_mat/bound_inf_norm.c
+++ b/acb_mat/bound_inf_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/charpoly.c b/acb_mat/charpoly.c
index 11f5e2cd..a2280eeb 100644
--- a/acb_mat/charpoly.c
+++ b/acb_mat/charpoly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Sebastian Pancratz
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/clear.c b/acb_mat/clear.c
index bb59ca05..73020413 100644
--- a/acb_mat/clear.c
+++ b/acb_mat/clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/contains.c b/acb_mat/contains.c
index e28331d2..320c12c7 100644
--- a/acb_mat/contains.c
+++ b/acb_mat/contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/contains_fmpq_mat.c b/acb_mat/contains_fmpq_mat.c
index f5a3a16c..9f00cd42 100644
--- a/acb_mat/contains_fmpq_mat.c
+++ b/acb_mat/contains_fmpq_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/contains_fmpz_mat.c b/acb_mat/contains_fmpz_mat.c
index 6803e1b1..7a6f3a89 100644
--- a/acb_mat/contains_fmpz_mat.c
+++ b/acb_mat/contains_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/det.c b/acb_mat/det.c
index 01a54e1a..9539019a 100644
--- a/acb_mat/det.c
+++ b/acb_mat/det.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/eq.c b/acb_mat/eq.c
index 0bcf7c03..333ef1a3 100644
--- a/acb_mat/eq.c
+++ b/acb_mat/eq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/equal.c b/acb_mat/equal.c
index f3024c27..4258e4c7 100644
--- a/acb_mat/equal.c
+++ b/acb_mat/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/exp.c b/acb_mat/exp.c
index 3ff31f84..dabf1257 100644
--- a/acb_mat/exp.c
+++ b/acb_mat/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "acb_mat.h"
diff --git a/acb_mat/exp_taylor_sum.c b/acb_mat/exp_taylor_sum.c
index ec900e03..a89305fa 100644
--- a/acb_mat/exp_taylor_sum.c
+++ b/acb_mat/exp_taylor_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/find_pivot_partial.c b/acb_mat/find_pivot_partial.c
index 06c151df..6c5cd8f4 100644
--- a/acb_mat/find_pivot_partial.c
+++ b/acb_mat/find_pivot_partial.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/fprintd.c b/acb_mat/fprintd.c
index e01dd408..f7c4f630 100644
--- a/acb_mat/fprintd.c
+++ b/acb_mat/fprintd.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/frobenius_norm.c b/acb_mat/frobenius_norm.c
index 6c82e8d6..7b22a91f 100644
--- a/acb_mat/frobenius_norm.c
+++ b/acb_mat/frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/init.c b/acb_mat/init.c
index 242fe3d3..c364ac83 100644
--- a/acb_mat/init.c
+++ b/acb_mat/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/inlines.c b/acb_mat/inlines.c
index 1d50ed52..9b4d6e28 100644
--- a/acb_mat/inlines.c
+++ b/acb_mat/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ACB_MAT_INLINES_C
 #include "acb_mat.h"
diff --git a/acb_mat/inv.c b/acb_mat/inv.c
index a40876f3..4a409042 100644
--- a/acb_mat/inv.c
+++ b/acb_mat/inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/is_real.c b/acb_mat/is_real.c
index 1b34d487..e6c29d3f 100644
--- a/acb_mat/is_real.c
+++ b/acb_mat/is_real.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/lu.c b/acb_mat/lu.c
index 74e9cd8e..074bade5 100644
--- a/acb_mat/lu.c
+++ b/acb_mat/lu.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/mul.c b/acb_mat/mul.c
index a05570a7..af693e39 100644
--- a/acb_mat/mul.c
+++ b/acb_mat/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/mul_entrywise.c b/acb_mat/mul_entrywise.c
index 302c2ec6..12a20f5b 100644
--- a/acb_mat/mul_entrywise.c
+++ b/acb_mat/mul_entrywise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/ne.c b/acb_mat/ne.c
index d3465a32..8804b905 100644
--- a/acb_mat/ne.c
+++ b/acb_mat/ne.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/neg.c b/acb_mat/neg.c
index 0ed7f396..6a0de0fc 100644
--- a/acb_mat/neg.c
+++ b/acb_mat/neg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/one.c b/acb_mat/one.c
index 880bfe1a..e04d7732 100644
--- a/acb_mat/one.c
+++ b/acb_mat/one.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/overlaps.c b/acb_mat/overlaps.c
index 329f344e..d5ac73a1 100644
--- a/acb_mat/overlaps.c
+++ b/acb_mat/overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/pow_ui.c b/acb_mat/pow_ui.c
index 9dd53d5b..fa03b2aa 100644
--- a/acb_mat/pow_ui.c
+++ b/acb_mat/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/randtest.c b/acb_mat/randtest.c
index 8ba2963a..e5ea36be 100644
--- a/acb_mat/randtest.c
+++ b/acb_mat/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set.c b/acb_mat/set.c
index 2fdc786c..14eb8ed2 100644
--- a/acb_mat/set.c
+++ b/acb_mat/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set_arb_mat.c b/acb_mat/set_arb_mat.c
index 4b608f97..c0782c32 100644
--- a/acb_mat/set_arb_mat.c
+++ b/acb_mat/set_arb_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set_fmpq_mat.c b/acb_mat/set_fmpq_mat.c
index 7b568d5d..c4e268f1 100644
--- a/acb_mat/set_fmpq_mat.c
+++ b/acb_mat/set_fmpq_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set_fmpz_mat.c b/acb_mat/set_fmpz_mat.c
index bb724090..4fbca84f 100644
--- a/acb_mat/set_fmpz_mat.c
+++ b/acb_mat/set_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set_round_arb_mat.c b/acb_mat/set_round_arb_mat.c
index 9e633967..450d302f 100644
--- a/acb_mat/set_round_arb_mat.c
+++ b/acb_mat/set_round_arb_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/set_round_fmpz_mat.c b/acb_mat/set_round_fmpz_mat.c
index 34752ec1..54f3e7eb 100644
--- a/acb_mat/set_round_fmpz_mat.c
+++ b/acb_mat/set_round_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/solve.c b/acb_mat/solve.c
index 54d3a40d..f44b60a2 100644
--- a/acb_mat/solve.c
+++ b/acb_mat/solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/solve_lu_precomp.c b/acb_mat/solve_lu_precomp.c
index ea64f3c3..b6881024 100644
--- a/acb_mat/solve_lu_precomp.c
+++ b/acb_mat/solve_lu_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/sqr.c b/acb_mat/sqr.c
index 258303bf..307e9407 100644
--- a/acb_mat/sqr.c
+++ b/acb_mat/sqr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/sub.c b/acb_mat/sub.c
index e816761c..99976a46 100644
--- a/acb_mat/sub.c
+++ b/acb_mat/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-charpoly.c b/acb_mat/test/t-charpoly.c
index e250de83..93ce4e4c 100644
--- a/acb_mat/test/t-charpoly.c
+++ b/acb_mat/test/t-charpoly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-det.c b/acb_mat/test/t-det.c
index c96f77bc..e3e1dfd5 100644
--- a/acb_mat/test/t-det.c
+++ b/acb_mat/test/t-det.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-exp.c b/acb_mat/test/t-exp.c
index f9eeadcd..52db768c 100644
--- a/acb_mat/test/t-exp.c
+++ b/acb_mat/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-exp_taylor_sum.c b/acb_mat/test/t-exp_taylor_sum.c
index 4d905c8a..cc07cb1d 100644
--- a/acb_mat/test/t-exp_taylor_sum.c
+++ b/acb_mat/test/t-exp_taylor_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-frobenius_norm.c b/acb_mat/test/t-frobenius_norm.c
index 8f4db19e..4bd74078 100644
--- a/acb_mat/test/t-frobenius_norm.c
+++ b/acb_mat/test/t-frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-inv.c b/acb_mat/test/t-inv.c
index 97464409..b784b21b 100644
--- a/acb_mat/test/t-inv.c
+++ b/acb_mat/test/t-inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-lu.c b/acb_mat/test/t-lu.c
index bd37a3f7..fda2acb5 100644
--- a/acb_mat/test/t-lu.c
+++ b/acb_mat/test/t-lu.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-mul.c b/acb_mat/test/t-mul.c
index 350abe5d..9ecfd1f8 100644
--- a/acb_mat/test/t-mul.c
+++ b/acb_mat/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-mul_entrywise.c b/acb_mat/test/t-mul_entrywise.c
index 99926828..552d6e01 100644
--- a/acb_mat/test/t-mul_entrywise.c
+++ b/acb_mat/test/t-mul_entrywise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-solve.c b/acb_mat/test/t-solve.c
index e120f6e4..10a46634 100644
--- a/acb_mat/test/t-solve.c
+++ b/acb_mat/test/t-solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-sqr.c b/acb_mat/test/t-sqr.c
index 6668bc38..f7f3a477 100644
--- a/acb_mat/test/t-sqr.c
+++ b/acb_mat/test/t-sqr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-trace.c b/acb_mat/test/t-trace.c
index 1718bdae..af7e85b1 100644
--- a/acb_mat/test/t-trace.c
+++ b/acb_mat/test/t-trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/test/t-transpose.c b/acb_mat/test/t-transpose.c
index c15fa7c4..b0d1346c 100644
--- a/acb_mat/test/t-transpose.c
+++ b/acb_mat/test/t-transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/trace.c b/acb_mat/trace.c
index 3c9cb0b2..4deac7e7 100644
--- a/acb_mat/trace.c
+++ b/acb_mat/trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/transpose.c b/acb_mat/transpose.c
index a2d134e8..70c2ea57 100644
--- a/acb_mat/transpose.c
+++ b/acb_mat/transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_mat/zero.c b/acb_mat/zero.c
index 5b3d6c79..214d0d2e 100644
--- a/acb_mat/zero.c
+++ b/acb_mat/zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_mat.h"
 
diff --git a/acb_modular.h b/acb_modular.h
index 1ce7442e..2fe9405e 100644
--- a/acb_modular.h
+++ b/acb_modular.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_MODULAR_H
 #define ACB_MODULAR_H
diff --git a/acb_modular/addseq.c b/acb_modular/addseq.c
index 4ec9844b..44ccda2a 100644
--- a/acb_modular/addseq.c
+++ b/acb_modular/addseq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/delta.c b/acb_modular/delta.c
index 20707aca..0d6df30b 100644
--- a/acb_modular/delta.c
+++ b/acb_modular/delta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/eisenstein.c b/acb_modular/eisenstein.c
index c4b69639..06886ca7 100644
--- a/acb_modular/eisenstein.c
+++ b/acb_modular/eisenstein.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/elliptic_e.c b/acb_modular/elliptic_e.c
index 45a1f43f..17b09e9a 100644
--- a/acb_modular/elliptic_e.c
+++ b/acb_modular/elliptic_e.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/elliptic_k.c b/acb_modular/elliptic_k.c
index 075688f6..d196f4fe 100644
--- a/acb_modular/elliptic_k.c
+++ b/acb_modular/elliptic_k.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/elliptic_k_cpx.c b/acb_modular/elliptic_k_cpx.c
index 9bfc3255..d6af5155 100644
--- a/acb_modular/elliptic_k_cpx.c
+++ b/acb_modular/elliptic_k_cpx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/elliptic_p.c b/acb_modular/elliptic_p.c
index cd5b0a24..7701827b 100644
--- a/acb_modular/elliptic_p.c
+++ b/acb_modular/elliptic_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/elliptic_p_zpx.c b/acb_modular/elliptic_p_zpx.c
index 49978f18..c7e36229 100644
--- a/acb_modular/elliptic_p_zpx.c
+++ b/acb_modular/elliptic_p_zpx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 #include "acb_poly.h"
diff --git a/acb_modular/epsilon_arg.c b/acb_modular/epsilon_arg.c
index 8a0a90d9..a106e457 100644
--- a/acb_modular/epsilon_arg.c
+++ b/acb_modular/epsilon_arg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/eta.c b/acb_modular/eta.c
index 3eb93621..55de00a7 100644
--- a/acb_modular/eta.c
+++ b/acb_modular/eta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/eta_sum.c b/acb_modular/eta_sum.c
index 4cf68d3f..57b13c2d 100644
--- a/acb_modular/eta_sum.c
+++ b/acb_modular/eta_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/fill_addseq.c b/acb_modular/fill_addseq.c
index c030ab6d..e4c804fe 100644
--- a/acb_modular/fill_addseq.c
+++ b/acb_modular/fill_addseq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/fundamental_domain_approx.c b/acb_modular/fundamental_domain_approx.c
index 69d31ee3..c35fdfc7 100644
--- a/acb_modular/fundamental_domain_approx.c
+++ b/acb_modular/fundamental_domain_approx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/fundamental_domain_approx_arf.c b/acb_modular/fundamental_domain_approx_arf.c
index 42dfa0f6..e8527771 100644
--- a/acb_modular/fundamental_domain_approx_arf.c
+++ b/acb_modular/fundamental_domain_approx_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/fundamental_domain_approx_d.c b/acb_modular/fundamental_domain_approx_d.c
index 33ec1e57..e603ddae 100644
--- a/acb_modular/fundamental_domain_approx_d.c
+++ b/acb_modular/fundamental_domain_approx_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/hilbert_class_poly.c b/acb_modular/hilbert_class_poly.c
index 140ce971..52220ce5 100644
--- a/acb_modular/hilbert_class_poly.c
+++ b/acb_modular/hilbert_class_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 #include "acb_modular.h"
diff --git a/acb_modular/is_in_fundamental_domain.c b/acb_modular/is_in_fundamental_domain.c
index 6993d323..5a909134 100644
--- a/acb_modular/is_in_fundamental_domain.c
+++ b/acb_modular/is_in_fundamental_domain.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/j.c b/acb_modular/j.c
index 8b1e80a5..f21ea404 100644
--- a/acb_modular/j.c
+++ b/acb_modular/j.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/lambda.c b/acb_modular/lambda.c
index 3cc92ac0..34ab4a9a 100644
--- a/acb_modular/lambda.c
+++ b/acb_modular/lambda.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/psl2z_inv.c b/acb_modular/psl2z_inv.c
index 1e99e696..3b85035a 100644
--- a/acb_modular/psl2z_inv.c
+++ b/acb_modular/psl2z_inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/psl2z_is_correct.c b/acb_modular/psl2z_is_correct.c
index 76d28245..d58a320a 100644
--- a/acb_modular/psl2z_is_correct.c
+++ b/acb_modular/psl2z_is_correct.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/psl2z_is_one.c b/acb_modular/psl2z_is_one.c
index e759af6d..0e2b4feb 100644
--- a/acb_modular/psl2z_is_one.c
+++ b/acb_modular/psl2z_is_one.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/psl2z_mul.c b/acb_modular/psl2z_mul.c
index 5d2c3ca3..be5ff72b 100644
--- a/acb_modular/psl2z_mul.c
+++ b/acb_modular/psl2z_mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/psl2z_randtest.c b/acb_modular/psl2z_randtest.c
index cbdec1e8..29c0f634 100644
--- a/acb_modular/psl2z_randtest.c
+++ b/acb_modular/psl2z_randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-delta.c b/acb_modular/test/t-delta.c
index b5a98c70..6373ceef 100644
--- a/acb_modular/test/t-delta.c
+++ b/acb_modular/test/t-delta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-eisenstein.c b/acb_modular/test/t-eisenstein.c
index d8c2cc53..379371eb 100644
--- a/acb_modular/test/t-eisenstein.c
+++ b/acb_modular/test/t-eisenstein.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-elliptic_e.c b/acb_modular/test/t-elliptic_e.c
index 18a497ab..6916f420 100644
--- a/acb_modular/test/t-elliptic_e.c
+++ b/acb_modular/test/t-elliptic_e.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-elliptic_k.c b/acb_modular/test/t-elliptic_k.c
index 7ee4f354..28a478e2 100644
--- a/acb_modular/test/t-elliptic_k.c
+++ b/acb_modular/test/t-elliptic_k.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-elliptic_p.c b/acb_modular/test/t-elliptic_p.c
index 1c7f459f..d4d15c97 100644
--- a/acb_modular/test/t-elliptic_p.c
+++ b/acb_modular/test/t-elliptic_p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-elliptic_p_zpx.c b/acb_modular/test/t-elliptic_p_zpx.c
index a3b8e123..b11b64ed 100644
--- a/acb_modular/test/t-elliptic_p_zpx.c
+++ b/acb_modular/test/t-elliptic_p_zpx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 #include "acb_poly.h"
diff --git a/acb_modular/test/t-epsilon_arg.c b/acb_modular/test/t-epsilon_arg.c
index 415f88c2..5089a3d8 100644
--- a/acb_modular/test/t-epsilon_arg.c
+++ b/acb_modular/test/t-epsilon_arg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 #include "flint/arith.h"
diff --git a/acb_modular/test/t-eta.c b/acb_modular/test/t-eta.c
index 0a3c3dff..3d7cb25a 100644
--- a/acb_modular/test/t-eta.c
+++ b/acb_modular/test/t-eta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-fundamental_domain_approx.c b/acb_modular/test/t-fundamental_domain_approx.c
index eda6165c..2c5c48d7 100644
--- a/acb_modular/test/t-fundamental_domain_approx.c
+++ b/acb_modular/test/t-fundamental_domain_approx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-hilbert_class_poly.c b/acb_modular/test/t-hilbert_class_poly.c
index 0e731dba..b074abbe 100644
--- a/acb_modular/test/t-hilbert_class_poly.c
+++ b/acb_modular/test/t-hilbert_class_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/fmpz_poly.h"
 #include "acb_modular.h"
diff --git a/acb_modular/test/t-j.c b/acb_modular/test/t-j.c
index a6608ea3..90ec8a28 100644
--- a/acb_modular/test/t-j.c
+++ b/acb_modular/test/t-j.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-lambda.c b/acb_modular/test/t-lambda.c
index 2fca3cde..27722c26 100644
--- a/acb_modular/test/t-lambda.c
+++ b/acb_modular/test/t-lambda.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-psl2z_inv.c b/acb_modular/test/t-psl2z_inv.c
index cfa7955c..eca51712 100644
--- a/acb_modular/test/t-psl2z_inv.c
+++ b/acb_modular/test/t-psl2z_inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-psl2z_mul.c b/acb_modular/test/t-psl2z_mul.c
index f2af0fd0..2f1a81d7 100644
--- a/acb_modular/test/t-psl2z_mul.c
+++ b/acb_modular/test/t-psl2z_mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-theta.c b/acb_modular/test/t-theta.c
index 953a9d94..97da67b5 100644
--- a/acb_modular/test/t-theta.c
+++ b/acb_modular/test/t-theta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-theta_const_sum_rs.c b/acb_modular/test/t-theta_const_sum_rs.c
index fac464d6..f36aabf9 100644
--- a/acb_modular/test/t-theta_const_sum_rs.c
+++ b/acb_modular/test/t-theta_const_sum_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-theta_sum.c b/acb_modular/test/t-theta_sum.c
index 88e42c8a..f61ea973 100644
--- a/acb_modular/test/t-theta_sum.c
+++ b/acb_modular/test/t-theta_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/test/t-transform.c b/acb_modular/test/t-transform.c
index b0b2bb87..51c2f7be 100644
--- a/acb_modular/test/t-transform.c
+++ b/acb_modular/test/t-transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta.c b/acb_modular/theta.c
index 9a561cbc..57d63c7e 100644
--- a/acb_modular/theta.c
+++ b/acb_modular/theta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta_const_sum.c b/acb_modular/theta_const_sum.c
index 0bdb0e29..9c265324 100644
--- a/acb_modular/theta_const_sum.c
+++ b/acb_modular/theta_const_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta_const_sum_basecase.c b/acb_modular/theta_const_sum_basecase.c
index b034d8ef..61135b45 100644
--- a/acb_modular/theta_const_sum_basecase.c
+++ b/acb_modular/theta_const_sum_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta_const_sum_rs.c b/acb_modular/theta_const_sum_rs.c
index cacdcafe..25e8ea63 100644
--- a/acb_modular/theta_const_sum_rs.c
+++ b/acb_modular/theta_const_sum_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta_sum.c b/acb_modular/theta_sum.c
index f354589a..73696add 100644
--- a/acb_modular/theta_sum.c
+++ b/acb_modular/theta_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/theta_transform.c b/acb_modular/theta_transform.c
index 05f1d76a..75f60fb1 100644
--- a/acb_modular/theta_transform.c
+++ b/acb_modular/theta_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_modular/transform.c b/acb_modular/transform.c
index 67844b1b..80edfd5d 100644
--- a/acb_modular/transform.c
+++ b/acb_modular/transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_modular.h"
 
diff --git a/acb_poly.h b/acb_poly.h
index 91b4a20b..05719ede 100644
--- a/acb_poly.h
+++ b/acb_poly.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ACB_POLY_H
 #define ACB_POLY_H
diff --git a/acb_poly/add.c b/acb_poly/add.c
index 19759db2..13517ab4 100644
--- a/acb_poly/add.c
+++ b/acb_poly/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/add_si.c b/acb_poly/add_si.c
index ebd16e13..d1c1f842 100644
--- a/acb_poly/add_si.c
+++ b/acb_poly/add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/agm1_series.c b/acb_poly/agm1_series.c
index 98ec5f52..417bd2ff 100644
--- a/acb_poly/agm1_series.c
+++ b/acb_poly/agm1_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/atan_series.c b/acb_poly/atan_series.c
index d48d7d2a..2ab726ba 100644
--- a/acb_poly/atan_series.c
+++ b/acb_poly/atan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/clear.c b/acb_poly/clear.c
index d77148f8..b32481c7 100644
--- a/acb_poly/clear.c
+++ b/acb_poly/clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/compose.c b/acb_poly/compose.c
index ce66ab43..b3749f3d 100644
--- a/acb_poly/compose.c
+++ b/acb_poly/compose.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012, 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/compose_divconquer.c b/acb_poly/compose_divconquer.c
index 66d897d9..83b784af 100644
--- a/acb_poly/compose_divconquer.c
+++ b/acb_poly/compose_divconquer.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/compose_horner.c b/acb_poly/compose_horner.c
index 36d41a3a..5ccd17f0 100644
--- a/acb_poly/compose_horner.c
+++ b/acb_poly/compose_horner.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/compose_series.c b/acb_poly/compose_series.c
index b5805632..7f78bf99 100644
--- a/acb_poly/compose_series.c
+++ b/acb_poly/compose_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/compose_series_brent_kung.c b/acb_poly/compose_series_brent_kung.c
index f7a8cb4a..22c3e841 100644
--- a/acb_poly/compose_series_brent_kung.c
+++ b/acb_poly/compose_series_brent_kung.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_mat.h"
diff --git a/acb_poly/compose_series_horner.c b/acb_poly/compose_series_horner.c
index 6288db1b..2144b6ae 100644
--- a/acb_poly/compose_series_horner.c
+++ b/acb_poly/compose_series_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/contains.c b/acb_poly/contains.c
index 207f924a..07e39e98 100644
--- a/acb_poly/contains.c
+++ b/acb_poly/contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/contains_fmpq_poly.c b/acb_poly/contains_fmpq_poly.c
index 6893400b..22ec9aab 100644
--- a/acb_poly/contains_fmpq_poly.c
+++ b/acb_poly/contains_fmpq_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/contains_fmpz_poly.c b/acb_poly/contains_fmpz_poly.c
index a1067150..094719bf 100644
--- a/acb_poly/contains_fmpz_poly.c
+++ b/acb_poly/contains_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/cos_pi_series.c b/acb_poly/cos_pi_series.c
index 01b1ca36..34284a1b 100644
--- a/acb_poly/cos_pi_series.c
+++ b/acb_poly/cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/cos_series.c b/acb_poly/cos_series.c
index 09d706b4..5a5ef3cc 100644
--- a/acb_poly/cos_series.c
+++ b/acb_poly/cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/cosh_series.c b/acb_poly/cosh_series.c
index fae5ee8b..ec9da9f4 100644
--- a/acb_poly/cosh_series.c
+++ b/acb_poly/cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/cot_pi_series.c b/acb_poly/cot_pi_series.c
index 37427a5d..b1cc5822 100644
--- a/acb_poly/cot_pi_series.c
+++ b/acb_poly/cot_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/derivative.c b/acb_poly/derivative.c
index 3e28143e..cf154161 100644
--- a/acb_poly/derivative.c
+++ b/acb_poly/derivative.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/digamma_series.c b/acb_poly/digamma_series.c
index 509145ef..7cc2d427 100644
--- a/acb_poly/digamma_series.c
+++ b/acb_poly/digamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/div_root.c b/acb_poly/div_root.c
index e231d4cb..231ff57a 100644
--- a/acb_poly/div_root.c
+++ b/acb_poly/div_root.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/div_series.c b/acb_poly/div_series.c
index 641ce39d..81e6d58b 100644
--- a/acb_poly/div_series.c
+++ b/acb_poly/div_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/divrem.c b/acb_poly/divrem.c
index afd93fcf..e113a951 100644
--- a/acb_poly/divrem.c
+++ b/acb_poly/divrem.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/elliptic_k_series.c b/acb_poly/elliptic_k_series.c
index 25796e92..80b70bab 100644
--- a/acb_poly/elliptic_k_series.c
+++ b/acb_poly/elliptic_k_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_modular.h"
diff --git a/acb_poly/elliptic_p_series.c b/acb_poly/elliptic_p_series.c
index a2b05815..541f3585 100644
--- a/acb_poly/elliptic_p_series.c
+++ b/acb_poly/elliptic_p_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_modular.h"
diff --git a/acb_poly/equal.c b/acb_poly/equal.c
index 4eb0bf8b..a1fbb9b9 100644
--- a/acb_poly/equal.c
+++ b/acb_poly/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/erf_series.c b/acb_poly/erf_series.c
index 885601b2..413a5f57 100644
--- a/acb_poly/erf_series.c
+++ b/acb_poly/erf_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "acb_hypgeom.h"
diff --git a/acb_poly/evaluate.c b/acb_poly/evaluate.c
index b068fcf2..ffc6a9af 100644
--- a/acb_poly/evaluate.c
+++ b/acb_poly/evaluate.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate2.c b/acb_poly/evaluate2.c
index e258791f..f1132b21 100644
--- a/acb_poly/evaluate2.c
+++ b/acb_poly/evaluate2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate2_horner.c b/acb_poly/evaluate2_horner.c
index 12516a0d..3d3c688c 100644
--- a/acb_poly/evaluate2_horner.c
+++ b/acb_poly/evaluate2_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate2_rectangular.c b/acb_poly/evaluate2_rectangular.c
index 18aa1e51..71f59309 100644
--- a/acb_poly/evaluate2_rectangular.c
+++ b/acb_poly/evaluate2_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate_horner.c b/acb_poly/evaluate_horner.c
index 8456907a..5ae980d7 100644
--- a/acb_poly/evaluate_horner.c
+++ b/acb_poly/evaluate_horner.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate_rectangular.c b/acb_poly/evaluate_rectangular.c
index 053a71c4..a417e70a 100644
--- a/acb_poly/evaluate_rectangular.c
+++ b/acb_poly/evaluate_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate_vec_fast.c b/acb_poly/evaluate_vec_fast.c
index c5655bd7..f8eb9f25 100644
--- a/acb_poly/evaluate_vec_fast.c
+++ b/acb_poly/evaluate_vec_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/evaluate_vec_iter.c b/acb_poly/evaluate_vec_iter.c
index da08449b..67d03af9 100644
--- a/acb_poly/evaluate_vec_iter.c
+++ b/acb_poly/evaluate_vec_iter.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/exp_series.c b/acb_poly/exp_series.c
index 34ae6c5d..f52736ea 100644
--- a/acb_poly/exp_series.c
+++ b/acb_poly/exp_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/exp_series_basecase.c b/acb_poly/exp_series_basecase.c
index 932596cb..e6eefb53 100644
--- a/acb_poly/exp_series_basecase.c
+++ b/acb_poly/exp_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/find_roots.c b/acb_poly/find_roots.c
index 313b121d..54246f30 100644
--- a/acb_poly/find_roots.c
+++ b/acb_poly/find_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/fit_length.c b/acb_poly/fit_length.c
index 783ffe22..927fa696 100644
--- a/acb_poly/fit_length.c
+++ b/acb_poly/fit_length.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/fprintd.c b/acb_poly/fprintd.c
index f0dd5012..6ee656ac 100644
--- a/acb_poly/fprintd.c
+++ b/acb_poly/fprintd.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/gamma_series.c b/acb_poly/gamma_series.c
index 447194c6..d03cc6d0 100644
--- a/acb_poly/gamma_series.c
+++ b/acb_poly/gamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/get_coeff_acb.c b/acb_poly/get_coeff_acb.c
index 4f4d4a61..ffbd5150 100644
--- a/acb_poly/get_coeff_acb.c
+++ b/acb_poly/get_coeff_acb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/get_unique_fmpz_poly.c b/acb_poly/get_unique_fmpz_poly.c
index 8a4c684d..036c53ef 100644
--- a/acb_poly/get_unique_fmpz_poly.c
+++ b/acb_poly/get_unique_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/init.c b/acb_poly/init.c
index 026f25c3..ae3ced27 100644
--- a/acb_poly/init.c
+++ b/acb_poly/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/inlines.c b/acb_poly/inlines.c
index c8bb508f..6fdd2857 100644
--- a/acb_poly/inlines.c
+++ b/acb_poly/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ACB_POLY_INLINES_C
 #include "acb_poly.h"
diff --git a/acb_poly/integral.c b/acb_poly/integral.c
index d4d09972..fe63587d 100644
--- a/acb_poly/integral.c
+++ b/acb_poly/integral.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/interpolate_barycentric.c b/acb_poly/interpolate_barycentric.c
index bf0a2ab1..409b52c3 100644
--- a/acb_poly/interpolate_barycentric.c
+++ b/acb_poly/interpolate_barycentric.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/interpolate_fast.c b/acb_poly/interpolate_fast.c
index 69f5516c..ce6d228d 100644
--- a/acb_poly/interpolate_fast.c
+++ b/acb_poly/interpolate_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/interpolate_newton.c b/acb_poly/interpolate_newton.c
index 05ce12ad..7c5ec8af 100644
--- a/acb_poly/interpolate_newton.c
+++ b/acb_poly/interpolate_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/inv_series.c b/acb_poly/inv_series.c
index 2ed9bb86..9fbb4d92 100644
--- a/acb_poly/inv_series.c
+++ b/acb_poly/inv_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/lgamma_series.c b/acb_poly/lgamma_series.c
index 86097e81..dc3fd525 100644
--- a/acb_poly/lgamma_series.c
+++ b/acb_poly/lgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/log_series.c b/acb_poly/log_series.c
index ce0433c9..3dbabc56 100644
--- a/acb_poly/log_series.c
+++ b/acb_poly/log_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/majorant.c b/acb_poly/majorant.c
index 45e9e09a..f0a49bb9 100644
--- a/acb_poly/majorant.c
+++ b/acb_poly/majorant.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/mul.c b/acb_poly/mul.c
index dcfb94d5..81c7abf4 100644
--- a/acb_poly/mul.c
+++ b/acb_poly/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/mullow.c b/acb_poly/mullow.c
index 3f6a06ff..2f8c394a 100644
--- a/acb_poly/mullow.c
+++ b/acb_poly/mullow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/mullow_classical.c b/acb_poly/mullow_classical.c
index a959721d..316415bb 100644
--- a/acb_poly/mullow_classical.c
+++ b/acb_poly/mullow_classical.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/mullow_transpose.c b/acb_poly/mullow_transpose.c
index f6cc7d0f..1553e28a 100644
--- a/acb_poly/mullow_transpose.c
+++ b/acb_poly/mullow_transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/mullow_transpose_gauss.c b/acb_poly/mullow_transpose_gauss.c
index c6b9963d..3e09c6f3 100644
--- a/acb_poly/mullow_transpose_gauss.c
+++ b/acb_poly/mullow_transpose_gauss.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/normalise.c b/acb_poly/normalise.c
index a5f91f64..fbd87d27 100644
--- a/acb_poly/normalise.c
+++ b/acb_poly/normalise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/overlaps.c b/acb_poly/overlaps.c
index bc187c11..8426fa92 100644
--- a/acb_poly/overlaps.c
+++ b/acb_poly/overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/polylog_series.c b/acb_poly/polylog_series.c
index a1af878f..9a4bb086 100644
--- a/acb_poly/polylog_series.c
+++ b/acb_poly/polylog_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/pow_acb_series.c b/acb_poly/pow_acb_series.c
index 4bf3c1e2..ff4a3348 100644
--- a/acb_poly/pow_acb_series.c
+++ b/acb_poly/pow_acb_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/pow_series.c b/acb_poly/pow_series.c
index 442b1b42..4ba1eb33 100644
--- a/acb_poly/pow_series.c
+++ b/acb_poly/pow_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/pow_ui.c b/acb_poly/pow_ui.c
index 62571291..ba5a6437 100644
--- a/acb_poly/pow_ui.c
+++ b/acb_poly/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/pow_ui_trunc_binexp.c b/acb_poly/pow_ui_trunc_binexp.c
index be5aa271..f5802971 100644
--- a/acb_poly/pow_ui_trunc_binexp.c
+++ b/acb_poly/pow_ui_trunc_binexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/powsum_one_series_sieved.c b/acb_poly/powsum_one_series_sieved.c
index 1a2fc470..3a33c762 100644
--- a/acb_poly/powsum_one_series_sieved.c
+++ b/acb_poly/powsum_one_series_sieved.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/powsum_series_naive.c b/acb_poly/powsum_series_naive.c
index e3b9d807..1e666832 100644
--- a/acb_poly/powsum_series_naive.c
+++ b/acb_poly/powsum_series_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/powsum_series_naive_threaded.c b/acb_poly/powsum_series_naive_threaded.c
index 72751725..b665c3cb 100644
--- a/acb_poly/powsum_series_naive_threaded.c
+++ b/acb_poly/powsum_series_naive_threaded.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <pthread.h>
 #include "acb_poly.h"
diff --git a/acb_poly/product_roots.c b/acb_poly/product_roots.c
index e7773225..b66ba810 100644
--- a/acb_poly/product_roots.c
+++ b/acb_poly/product_roots.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/randtest.c b/acb_poly/randtest.c
index babfd55a..3d2d781c 100644
--- a/acb_poly/randtest.c
+++ b/acb_poly/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/refine_roots_durand_kerner.c b/acb_poly/refine_roots_durand_kerner.c
index a6c402b8..ca1bdca8 100644
--- a/acb_poly/refine_roots_durand_kerner.c
+++ b/acb_poly/refine_roots_durand_kerner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/reverse.c b/acb_poly/reverse.c
index 66b5328d..1b043bfb 100644
--- a/acb_poly/reverse.c
+++ b/acb_poly/reverse.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/revert_series.c b/acb_poly/revert_series.c
index e6f30687..8275cb64 100644
--- a/acb_poly/revert_series.c
+++ b/acb_poly/revert_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/revert_series_lagrange.c b/acb_poly/revert_series_lagrange.c
index 30a5994c..8bbaf0ec 100644
--- a/acb_poly/revert_series_lagrange.c
+++ b/acb_poly/revert_series_lagrange.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/revert_series_lagrange_fast.c b/acb_poly/revert_series_lagrange_fast.c
index 6eb65e1e..2febeaaa 100644
--- a/acb_poly/revert_series_lagrange_fast.c
+++ b/acb_poly/revert_series_lagrange_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/revert_series_newton.c b/acb_poly/revert_series_newton.c
index aac60b9a..4d86a059 100644
--- a/acb_poly/revert_series_newton.c
+++ b/acb_poly/revert_series_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/rgamma_series.c b/acb_poly/rgamma_series.c
index f43b09cf..34686434 100644
--- a/acb_poly/rgamma_series.c
+++ b/acb_poly/rgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/rising_ui_series.c b/acb_poly/rising_ui_series.c
index 9d571a77..014a6099 100644
--- a/acb_poly/rising_ui_series.c
+++ b/acb_poly/rising_ui_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/root_bound_fujiwara.c b/acb_poly/root_bound_fujiwara.c
index cbce8312..7021b79b 100644
--- a/acb_poly/root_bound_fujiwara.c
+++ b/acb_poly/root_bound_fujiwara.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/root_inclusion.c b/acb_poly/root_inclusion.c
index ae1bd5cf..d003e958 100644
--- a/acb_poly/root_inclusion.c
+++ b/acb_poly/root_inclusion.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/rsqrt_series.c b/acb_poly/rsqrt_series.c
index 2977993d..50b2fe12 100644
--- a/acb_poly/rsqrt_series.c
+++ b/acb_poly/rsqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set.c b/acb_poly/set.c
index 9e4008d2..47d0899c 100644
--- a/acb_poly/set.c
+++ b/acb_poly/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set2_arb_poly.c b/acb_poly/set2_arb_poly.c
index c3095478..c9bad17f 100644
--- a/acb_poly/set2_arb_poly.c
+++ b/acb_poly/set2_arb_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set2_fmpq_poly.c b/acb_poly/set2_fmpq_poly.c
index 9a42e7d5..ab63d4ba 100644
--- a/acb_poly/set2_fmpq_poly.c
+++ b/acb_poly/set2_fmpq_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set2_fmpz_poly.c b/acb_poly/set2_fmpz_poly.c
index 62e72806..bcf4dda3 100644
--- a/acb_poly/set2_fmpz_poly.c
+++ b/acb_poly/set2_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_coeff_acb.c b/acb_poly/set_coeff_acb.c
index 569da573..aa9b0b69 100644
--- a/acb_poly/set_coeff_acb.c
+++ b/acb_poly/set_coeff_acb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_coeff_si.c b/acb_poly/set_coeff_si.c
index 6ceb8924..5547573e 100644
--- a/acb_poly/set_coeff_si.c
+++ b/acb_poly/set_coeff_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_fmpz_poly.c b/acb_poly/set_fmpz_poly.c
index 95d39ae4..9413becb 100644
--- a/acb_poly/set_fmpz_poly.c
+++ b/acb_poly/set_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_length.c b/acb_poly/set_length.c
index b4b6aff9..82ef8e4d 100644
--- a/acb_poly/set_length.c
+++ b/acb_poly/set_length.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_round.c b/acb_poly/set_round.c
index 13e6f623..44523a49 100644
--- a/acb_poly/set_round.c
+++ b/acb_poly/set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/set_si.c b/acb_poly/set_si.c
index da79e854..2f2a04f3 100644
--- a/acb_poly/set_si.c
+++ b/acb_poly/set_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/shift_left.c b/acb_poly/shift_left.c
index 710142dc..b2519f18 100644
--- a/acb_poly/shift_left.c
+++ b/acb_poly/shift_left.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/shift_right.c b/acb_poly/shift_right.c
index c6d75034..bce20d12 100644
--- a/acb_poly/shift_right.c
+++ b/acb_poly/shift_right.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_cos_pi_series.c b/acb_poly/sin_cos_pi_series.c
index 90411f9f..846cd263 100644
--- a/acb_poly/sin_cos_pi_series.c
+++ b/acb_poly/sin_cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_cos_series.c b/acb_poly/sin_cos_series.c
index 552c8b3e..42b5c733 100644
--- a/acb_poly/sin_cos_series.c
+++ b/acb_poly/sin_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_cos_series_basecase.c b/acb_poly/sin_cos_series_basecase.c
index 7a10ada5..9af63a9b 100644
--- a/acb_poly/sin_cos_series_basecase.c
+++ b/acb_poly/sin_cos_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_cos_series_tangent.c b/acb_poly/sin_cos_series_tangent.c
index 2182aaa3..b46c90ca 100644
--- a/acb_poly/sin_cos_series_tangent.c
+++ b/acb_poly/sin_cos_series_tangent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_pi_series.c b/acb_poly/sin_pi_series.c
index 102dc3b7..e853bb07 100644
--- a/acb_poly/sin_pi_series.c
+++ b/acb_poly/sin_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sin_series.c b/acb_poly/sin_series.c
index 7e6c091e..22f2ca86 100644
--- a/acb_poly/sin_series.c
+++ b/acb_poly/sin_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sinc_series.c b/acb_poly/sinc_series.c
index 2e3b145b..17bebb86 100644
--- a/acb_poly/sinc_series.c
+++ b/acb_poly/sinc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sinh_cosh_series.c b/acb_poly/sinh_cosh_series.c
index fc11e56b..ff3accce 100644
--- a/acb_poly/sinh_cosh_series.c
+++ b/acb_poly/sinh_cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sinh_cosh_series_basecase.c b/acb_poly/sinh_cosh_series_basecase.c
index ecc28a29..0e3b393b 100644
--- a/acb_poly/sinh_cosh_series_basecase.c
+++ b/acb_poly/sinh_cosh_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sinh_cosh_series_exponential.c b/acb_poly/sinh_cosh_series_exponential.c
index dba5df7d..9379194a 100644
--- a/acb_poly/sinh_cosh_series_exponential.c
+++ b/acb_poly/sinh_cosh_series_exponential.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sinh_series.c b/acb_poly/sinh_series.c
index 8bdcc753..d5006301 100644
--- a/acb_poly/sinh_series.c
+++ b/acb_poly/sinh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sqrt_series.c b/acb_poly/sqrt_series.c
index 1abf47ac..d2f89e51 100644
--- a/acb_poly/sqrt_series.c
+++ b/acb_poly/sqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/sub.c b/acb_poly/sub.c
index 392050ee..3755c82e 100644
--- a/acb_poly/sub.c
+++ b/acb_poly/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/tan_series.c b/acb_poly/tan_series.c
index e6e3c345..ae5d84aa 100644
--- a/acb_poly/tan_series.c
+++ b/acb_poly/tan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/taylor_shift.c b/acb_poly/taylor_shift.c
index 9f936084..44da668c 100644
--- a/acb_poly/taylor_shift.c
+++ b/acb_poly/taylor_shift.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/taylor_shift_convolution.c b/acb_poly/taylor_shift_convolution.c
index 7557a926..b93ab1f0 100644
--- a/acb_poly/taylor_shift_convolution.c
+++ b/acb_poly/taylor_shift_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/taylor_shift_divconquer.c b/acb_poly/taylor_shift_divconquer.c
index b7743af4..bc8fdee9 100644
--- a/acb_poly/taylor_shift_divconquer.c
+++ b/acb_poly/taylor_shift_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/taylor_shift_horner.c b/acb_poly/taylor_shift_horner.c
index 8773712c..bae3cc48 100644
--- a/acb_poly/taylor_shift_horner.c
+++ b/acb_poly/taylor_shift_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-add.c b/acb_poly/test/t-add.c
index 00239e3d..aa44a665 100644
--- a/acb_poly/test/t-add.c
+++ b/acb_poly/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-add_si.c b/acb_poly/test/t-add_si.c
index aef7ae42..2c4c2d9d 100644
--- a/acb_poly/test/t-add_si.c
+++ b/acb_poly/test/t-add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-agm1_series.c b/acb_poly/test/t-agm1_series.c
index 3ccd4794..a0d4d73b 100644
--- a/acb_poly/test/t-agm1_series.c
+++ b/acb_poly/test/t-agm1_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-atan_series.c b/acb_poly/test/t-atan_series.c
index 88df9e2d..8a2c90c7 100644
--- a/acb_poly/test/t-atan_series.c
+++ b/acb_poly/test/t-atan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose.c b/acb_poly/test/t-compose.c
index d0103874..1e6361f0 100644
--- a/acb_poly/test/t-compose.c
+++ b/acb_poly/test/t-compose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose_divconquer.c b/acb_poly/test/t-compose_divconquer.c
index 87b12ed3..da406a81 100644
--- a/acb_poly/test/t-compose_divconquer.c
+++ b/acb_poly/test/t-compose_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose_horner.c b/acb_poly/test/t-compose_horner.c
index 6a293820..2fa5bddb 100644
--- a/acb_poly/test/t-compose_horner.c
+++ b/acb_poly/test/t-compose_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose_series.c b/acb_poly/test/t-compose_series.c
index f4babc74..a6f9b452 100644
--- a/acb_poly/test/t-compose_series.c
+++ b/acb_poly/test/t-compose_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose_series_brent_kung.c b/acb_poly/test/t-compose_series_brent_kung.c
index fe3ebea9..e9d1984b 100644
--- a/acb_poly/test/t-compose_series_brent_kung.c
+++ b/acb_poly/test/t-compose_series_brent_kung.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-compose_series_horner.c b/acb_poly/test/t-compose_series_horner.c
index 175e0d69..c9490ede 100644
--- a/acb_poly/test/t-compose_series_horner.c
+++ b/acb_poly/test/t-compose_series_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-cos_pi_series.c b/acb_poly/test/t-cos_pi_series.c
index 39fb1bd5..b0424a41 100644
--- a/acb_poly/test/t-cos_pi_series.c
+++ b/acb_poly/test/t-cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-cot_pi_series.c b/acb_poly/test/t-cot_pi_series.c
index 6ad9864b..1d37d4c5 100644
--- a/acb_poly/test/t-cot_pi_series.c
+++ b/acb_poly/test/t-cot_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-digamma_series.c b/acb_poly/test/t-digamma_series.c
index 9c7fd846..eb933e0c 100644
--- a/acb_poly/test/t-digamma_series.c
+++ b/acb_poly/test/t-digamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-div_series.c b/acb_poly/test/t-div_series.c
index 321046c8..f21563c5 100644
--- a/acb_poly/test/t-div_series.c
+++ b/acb_poly/test/t-div_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-divrem.c b/acb_poly/test/t-divrem.c
index f2595dab..e2ede89c 100644
--- a/acb_poly/test/t-divrem.c
+++ b/acb_poly/test/t-divrem.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-elliptic_k_series.c b/acb_poly/test/t-elliptic_k_series.c
index e88a0b75..af405c3f 100644
--- a/acb_poly/test/t-elliptic_k_series.c
+++ b/acb_poly/test/t-elliptic_k_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-elliptic_p_series.c b/acb_poly/test/t-elliptic_p_series.c
index c03898a8..f666f7ed 100644
--- a/acb_poly/test/t-elliptic_p_series.c
+++ b/acb_poly/test/t-elliptic_p_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate.c b/acb_poly/test/t-evaluate.c
index 0ec2a52d..400fba5b 100644
--- a/acb_poly/test/t-evaluate.c
+++ b/acb_poly/test/t-evaluate.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate2.c b/acb_poly/test/t-evaluate2.c
index e6047cb1..a06e2d0d 100644
--- a/acb_poly/test/t-evaluate2.c
+++ b/acb_poly/test/t-evaluate2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate2_horner.c b/acb_poly/test/t-evaluate2_horner.c
index e7c0c5d4..5ca75129 100644
--- a/acb_poly/test/t-evaluate2_horner.c
+++ b/acb_poly/test/t-evaluate2_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate2_rectangular.c b/acb_poly/test/t-evaluate2_rectangular.c
index f99436d4..befb8a84 100644
--- a/acb_poly/test/t-evaluate2_rectangular.c
+++ b/acb_poly/test/t-evaluate2_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate_horner.c b/acb_poly/test/t-evaluate_horner.c
index 8fa63840..4e50c645 100644
--- a/acb_poly/test/t-evaluate_horner.c
+++ b/acb_poly/test/t-evaluate_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate_rectangular.c b/acb_poly/test/t-evaluate_rectangular.c
index d9a7bfdf..a96bd1ad 100644
--- a/acb_poly/test/t-evaluate_rectangular.c
+++ b/acb_poly/test/t-evaluate_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate_vec_fast.c b/acb_poly/test/t-evaluate_vec_fast.c
index cd18507c..34981e17 100644
--- a/acb_poly/test/t-evaluate_vec_fast.c
+++ b/acb_poly/test/t-evaluate_vec_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-evaluate_vec_iter.c b/acb_poly/test/t-evaluate_vec_iter.c
index eb53f9c4..47d8e7b4 100644
--- a/acb_poly/test/t-evaluate_vec_iter.c
+++ b/acb_poly/test/t-evaluate_vec_iter.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-exp_series.c b/acb_poly/test/t-exp_series.c
index 48f6f682..83000e0a 100644
--- a/acb_poly/test/t-exp_series.c
+++ b/acb_poly/test/t-exp_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-exp_series_basecase.c b/acb_poly/test/t-exp_series_basecase.c
index fa9b160a..8131d5dd 100644
--- a/acb_poly/test/t-exp_series_basecase.c
+++ b/acb_poly/test/t-exp_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-find_roots.c b/acb_poly/test/t-find_roots.c
index 4a312792..a3be5c77 100644
--- a/acb_poly/test/t-find_roots.c
+++ b/acb_poly/test/t-find_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-gamma_series.c b/acb_poly/test/t-gamma_series.c
index 0ef5958c..c2d810ee 100644
--- a/acb_poly/test/t-gamma_series.c
+++ b/acb_poly/test/t-gamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-get_coeff_ptr.c b/acb_poly/test/t-get_coeff_ptr.c
index 2b3a08c8..eca89b1b 100644
--- a/acb_poly/test/t-get_coeff_ptr.c
+++ b/acb_poly/test/t-get_coeff_ptr.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-get_set_coeff_fmprb.c b/acb_poly/test/t-get_set_coeff_fmprb.c
index 2dd594ae..e116cb30 100644
--- a/acb_poly/test/t-get_set_coeff_fmprb.c
+++ b/acb_poly/test/t-get_set_coeff_fmprb.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2009 William Hart
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-get_unique_fmpz_poly.c b/acb_poly/test/t-get_unique_fmpz_poly.c
index 0fcb47d7..cdb2c167 100644
--- a/acb_poly/test/t-get_unique_fmpz_poly.c
+++ b/acb_poly/test/t-get_unique_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-interpolate_barycentric.c b/acb_poly/test/t-interpolate_barycentric.c
index fb2e52a7..4ff914c5 100644
--- a/acb_poly/test/t-interpolate_barycentric.c
+++ b/acb_poly/test/t-interpolate_barycentric.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-interpolate_fast.c b/acb_poly/test/t-interpolate_fast.c
index f625ebfc..1508f9f0 100644
--- a/acb_poly/test/t-interpolate_fast.c
+++ b/acb_poly/test/t-interpolate_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-interpolate_newton.c b/acb_poly/test/t-interpolate_newton.c
index 6664d878..6b2d0044 100644
--- a/acb_poly/test/t-interpolate_newton.c
+++ b/acb_poly/test/t-interpolate_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-inv_series.c b/acb_poly/test/t-inv_series.c
index 6f6a08c7..d8136606 100644
--- a/acb_poly/test/t-inv_series.c
+++ b/acb_poly/test/t-inv_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-lgamma_series.c b/acb_poly/test/t-lgamma_series.c
index ab693a4a..b7c95709 100644
--- a/acb_poly/test/t-lgamma_series.c
+++ b/acb_poly/test/t-lgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-log_series.c b/acb_poly/test/t-log_series.c
index 9304f4c4..86fceb13 100644
--- a/acb_poly/test/t-log_series.c
+++ b/acb_poly/test/t-log_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-mullow.c b/acb_poly/test/t-mullow.c
index e3ead910..c11baae4 100644
--- a/acb_poly/test/t-mullow.c
+++ b/acb_poly/test/t-mullow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-mullow_classical.c b/acb_poly/test/t-mullow_classical.c
index cc547325..b8141b9d 100644
--- a/acb_poly/test/t-mullow_classical.c
+++ b/acb_poly/test/t-mullow_classical.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-mullow_transpose.c b/acb_poly/test/t-mullow_transpose.c
index fd57c3b2..49847821 100644
--- a/acb_poly/test/t-mullow_transpose.c
+++ b/acb_poly/test/t-mullow_transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-mullow_transpose_gauss.c b/acb_poly/test/t-mullow_transpose_gauss.c
index ff7d9499..fd936c6e 100644
--- a/acb_poly/test/t-mullow_transpose_gauss.c
+++ b/acb_poly/test/t-mullow_transpose_gauss.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-polylog_cpx.c b/acb_poly/test/t-polylog_cpx.c
index de8e1144..41c549ca 100644
--- a/acb_poly/test/t-polylog_cpx.c
+++ b/acb_poly/test/t-polylog_cpx.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-polylog_series.c b/acb_poly/test/t-polylog_series.c
index a569178d..f8636250 100644
--- a/acb_poly/test/t-polylog_series.c
+++ b/acb_poly/test/t-polylog_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-pow_acb_series.c b/acb_poly/test/t-pow_acb_series.c
index 745776aa..5c8f6798 100644
--- a/acb_poly/test/t-pow_acb_series.c
+++ b/acb_poly/test/t-pow_acb_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-pow_series.c b/acb_poly/test/t-pow_series.c
index 88f9513f..65a91d1a 100644
--- a/acb_poly/test/t-pow_series.c
+++ b/acb_poly/test/t-pow_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of acb.
-
-    acb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    acb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with acb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-pow_ui.c b/acb_poly/test/t-pow_ui.c
index 2b86c8c1..51518d60 100644
--- a/acb_poly/test/t-pow_ui.c
+++ b/acb_poly/test/t-pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-pow_ui_trunc_binexp.c b/acb_poly/test/t-pow_ui_trunc_binexp.c
index 53885094..1284ea49 100644
--- a/acb_poly/test/t-pow_ui_trunc_binexp.c
+++ b/acb_poly/test/t-pow_ui_trunc_binexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-powsum_one_series_sieved.c b/acb_poly/test/t-powsum_one_series_sieved.c
index 41f33d4b..a2eb0b48 100644
--- a/acb_poly/test/t-powsum_one_series_sieved.c
+++ b/acb_poly/test/t-powsum_one_series_sieved.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-powsum_series_naive_threaded.c b/acb_poly/test/t-powsum_series_naive_threaded.c
index f48c5cb4..a51ea7a1 100644
--- a/acb_poly/test/t-powsum_series_naive_threaded.c
+++ b/acb_poly/test/t-powsum_series_naive_threaded.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-revert_series.c b/acb_poly/test/t-revert_series.c
index d04679ac..66ef2022 100644
--- a/acb_poly/test/t-revert_series.c
+++ b/acb_poly/test/t-revert_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-revert_series_lagrange.c b/acb_poly/test/t-revert_series_lagrange.c
index b294bb99..686eeff0 100644
--- a/acb_poly/test/t-revert_series_lagrange.c
+++ b/acb_poly/test/t-revert_series_lagrange.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-revert_series_lagrange_fast.c b/acb_poly/test/t-revert_series_lagrange_fast.c
index 5202eb47..dee061c4 100644
--- a/acb_poly/test/t-revert_series_lagrange_fast.c
+++ b/acb_poly/test/t-revert_series_lagrange_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-revert_series_newton.c b/acb_poly/test/t-revert_series_newton.c
index 93855644..a2b1df0d 100644
--- a/acb_poly/test/t-revert_series_newton.c
+++ b/acb_poly/test/t-revert_series_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-rgamma_series.c b/acb_poly/test/t-rgamma_series.c
index 653f99cc..2b360d9c 100644
--- a/acb_poly/test/t-rgamma_series.c
+++ b/acb_poly/test/t-rgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-rising_ui_series.c b/acb_poly/test/t-rising_ui_series.c
index fd35f0ec..e76ba4af 100644
--- a/acb_poly/test/t-rising_ui_series.c
+++ b/acb_poly/test/t-rising_ui_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-root_bound_fujiwara.c b/acb_poly/test/t-root_bound_fujiwara.c
index 2e66cb7e..e138afa5 100644
--- a/acb_poly/test/t-root_bound_fujiwara.c
+++ b/acb_poly/test/t-root_bound_fujiwara.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-rsqrt_series.c b/acb_poly/test/t-rsqrt_series.c
index 16f992ac..d40b4f10 100644
--- a/acb_poly/test/t-rsqrt_series.c
+++ b/acb_poly/test/t-rsqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-shift_left_right.c b/acb_poly/test/t-shift_left_right.c
index 57ad187d..bd2e31d5 100644
--- a/acb_poly/test/t-shift_left_right.c
+++ b/acb_poly/test/t-shift_left_right.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2009 William Hart
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_cos_pi_series.c b/acb_poly/test/t-sin_cos_pi_series.c
index 66eb7e3f..57dc20b6 100644
--- a/acb_poly/test/t-sin_cos_pi_series.c
+++ b/acb_poly/test/t-sin_cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_cos_series.c b/acb_poly/test/t-sin_cos_series.c
index 167415dc..d03d52b2 100644
--- a/acb_poly/test/t-sin_cos_series.c
+++ b/acb_poly/test/t-sin_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_cos_series_basecase.c b/acb_poly/test/t-sin_cos_series_basecase.c
index 681d3921..9a6667aa 100644
--- a/acb_poly/test/t-sin_cos_series_basecase.c
+++ b/acb_poly/test/t-sin_cos_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_cos_series_tangent.c b/acb_poly/test/t-sin_cos_series_tangent.c
index 31bbbbb4..2073669c 100644
--- a/acb_poly/test/t-sin_cos_series_tangent.c
+++ b/acb_poly/test/t-sin_cos_series_tangent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_pi_series.c b/acb_poly/test/t-sin_pi_series.c
index 7ecf4d9a..99e8873f 100644
--- a/acb_poly/test/t-sin_pi_series.c
+++ b/acb_poly/test/t-sin_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sin_series_cos_series.c b/acb_poly/test/t-sin_series_cos_series.c
index 205b836d..6f04c70d 100644
--- a/acb_poly/test/t-sin_series_cos_series.c
+++ b/acb_poly/test/t-sin_series_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sinc_series.c b/acb_poly/test/t-sinc_series.c
index f3261cbd..3b897d81 100644
--- a/acb_poly/test/t-sinc_series.c
+++ b/acb_poly/test/t-sinc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sinh_cosh_series.c b/acb_poly/test/t-sinh_cosh_series.c
index 7e8ec066..48022c2d 100644
--- a/acb_poly/test/t-sinh_cosh_series.c
+++ b/acb_poly/test/t-sinh_cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sqrt_series.c b/acb_poly/test/t-sqrt_series.c
index 9c52175b..e6640862 100644
--- a/acb_poly/test/t-sqrt_series.c
+++ b/acb_poly/test/t-sqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-sub.c b/acb_poly/test/t-sub.c
index ed88aa01..b25b48f0 100644
--- a/acb_poly/test/t-sub.c
+++ b/acb_poly/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-tan_series.c b/acb_poly/test/t-tan_series.c
index a10108d1..e1df8b13 100644
--- a/acb_poly/test/t-tan_series.c
+++ b/acb_poly/test/t-tan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-taylor_shift.c b/acb_poly/test/t-taylor_shift.c
index 8471cf45..8bba5ef6 100644
--- a/acb_poly/test/t-taylor_shift.c
+++ b/acb_poly/test/t-taylor_shift.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-taylor_shift_convolution.c b/acb_poly/test/t-taylor_shift_convolution.c
index bf5ba687..930af8d3 100644
--- a/acb_poly/test/t-taylor_shift_convolution.c
+++ b/acb_poly/test/t-taylor_shift_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-taylor_shift_divconquer.c b/acb_poly/test/t-taylor_shift_divconquer.c
index 7f28d135..88bb54c0 100644
--- a/acb_poly/test/t-taylor_shift_divconquer.c
+++ b/acb_poly/test/t-taylor_shift_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-taylor_shift_horner.c b/acb_poly/test/t-taylor_shift_horner.c
index 58aff144..358ec600 100644
--- a/acb_poly/test/t-taylor_shift_horner.c
+++ b/acb_poly/test/t-taylor_shift_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-zeta_cpx_series.c b/acb_poly/test/t-zeta_cpx_series.c
index 4f1d5d3b..197295c9 100644
--- a/acb_poly/test/t-zeta_cpx_series.c
+++ b/acb_poly/test/t-zeta_cpx_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-zeta_em_tail_bsplit.c b/acb_poly/test/t-zeta_em_tail_bsplit.c
index 5a3868e4..e4388625 100644
--- a/acb_poly/test/t-zeta_em_tail_bsplit.c
+++ b/acb_poly/test/t-zeta_em_tail_bsplit.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/test/t-zeta_series.c b/acb_poly/test/t-zeta_series.c
index 7281540b..ae46014b 100644
--- a/acb_poly/test/t-zeta_series.c
+++ b/acb_poly/test/t-zeta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/tree.c b/acb_poly/tree.c
index 80115d69..8cbc2585 100644
--- a/acb_poly/tree.c
+++ b/acb_poly/tree.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/validate_real_roots.c b/acb_poly/validate_real_roots.c
index 595572a3..160f2637 100644
--- a/acb_poly/validate_real_roots.c
+++ b/acb_poly/validate_real_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/validate_roots.c b/acb_poly/validate_roots.c
index 50ee6566..251272f5 100644
--- a/acb_poly/validate_roots.c
+++ b/acb_poly/validate_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/zeta_em_bound.c b/acb_poly/zeta_em_bound.c
index d172262c..16776d97 100644
--- a/acb_poly/zeta_em_bound.c
+++ b/acb_poly/zeta_em_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/zeta_em_choose_param.c b/acb_poly/zeta_em_choose_param.c
index 030b049b..66212a1e 100644
--- a/acb_poly/zeta_em_choose_param.c
+++ b/acb_poly/zeta_em_choose_param.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/zeta_em_sum.c b/acb_poly/zeta_em_sum.c
index af20d475..b94287fb 100644
--- a/acb_poly/zeta_em_sum.c
+++ b/acb_poly/zeta_em_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/acb_poly/zeta_em_tail_bsplit.c b/acb_poly/zeta_em_tail_bsplit.c
index 4adb50be..47b93a92 100644
--- a/acb_poly/zeta_em_tail_bsplit.c
+++ b/acb_poly/zeta_em_tail_bsplit.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "bernoulli.h"
diff --git a/acb_poly/zeta_em_tail_naive.c b/acb_poly/zeta_em_tail_naive.c
index 5cb65fbf..d69d0382 100644
--- a/acb_poly/zeta_em_tail_naive.c
+++ b/acb_poly/zeta_em_tail_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 #include "bernoulli.h"
diff --git a/acb_poly/zeta_series.c b/acb_poly/zeta_series.c
index f5168eff..6c65891d 100644
--- a/acb_poly/zeta_series.c
+++ b/acb_poly/zeta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "acb_poly.h"
 
diff --git a/arb.h b/arb.h
index fca96cd0..a64f62ec 100644
--- a/arb.h
+++ b/arb.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ARB_H
 #define ARB_H
diff --git a/arb/abs.c b/arb/abs.c
index 8e6b1b5c..d416a9a4 100644
--- a/arb/abs.c
+++ b/arb/abs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/acos.c b/arb/acos.c
index c2eef753..6982cd99 100644
--- a/arb/acos.c
+++ b/arb/acos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/acosh.c b/arb/acosh.c
index 09355506..9c47de34 100644
--- a/arb/acosh.c
+++ b/arb/acosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/add.c b/arb/add.c
index 0c8622d4..45145e45 100644
--- a/arb/add.c
+++ b/arb/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/add_error.c b/arb/add_error.c
index 7590a1f6..e971ae53 100644
--- a/arb/add_error.c
+++ b/arb/add_error.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/addmul.c b/arb/addmul.c
index 1116e7d3..4b85a885 100644
--- a/arb/addmul.c
+++ b/arb/addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/agm.c b/arb/agm.c
index add39d34..e4cb813e 100644
--- a/arb/agm.c
+++ b/arb/agm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/asin.c b/arb/asin.c
index 1f64708a..80f4cb15 100644
--- a/arb/asin.c
+++ b/arb/asin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/asinh.c b/arb/asinh.c
index 403f6658..27c9fbf0 100644
--- a/arb/asinh.c
+++ b/arb/asinh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan.c b/arb/atan.c
index 864cc105..2d7c307d 100644
--- a/arb/atan.c
+++ b/arb/atan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan2.c b/arb/atan2.c
index a55bdc07..b03f29a9 100644
--- a/arb/atan2.c
+++ b/arb/atan2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_arf_bb.c b/arb/atan_arf_bb.c
index b8f74a13..a8227acb 100644
--- a/arb/atan_arf_bb.c
+++ b/arb/atan_arf_bb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_sum_bs_powtab.c b/arb/atan_sum_bs_powtab.c
index a03f5fce..bc2333c6 100644
--- a/arb/atan_sum_bs_powtab.c
+++ b/arb/atan_sum_bs_powtab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_sum_bs_simple.c b/arb/atan_sum_bs_simple.c
index db71fab0..2570ff24 100644
--- a/arb/atan_sum_bs_simple.c
+++ b/arb/atan_sum_bs_simple.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_tab.c b/arb/atan_tab.c
index 4a679840..f19b047a 100644
--- a/arb/atan_tab.c
+++ b/arb/atan_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_taylor_naive.c b/arb/atan_taylor_naive.c
index a092b052..1a566181 100644
--- a/arb/atan_taylor_naive.c
+++ b/arb/atan_taylor_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atan_taylor_rs.c b/arb/atan_taylor_rs.c
index 82e8efff..05062faa 100644
--- a/arb/atan_taylor_rs.c
+++ b/arb/atan_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/atanh.c b/arb/atanh.c
index c5630415..72bbab62 100644
--- a/arb/atanh.c
+++ b/arb/atanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/bell_fmpz.c b/arb/bell_fmpz.c
index 7d61704b..d81968cf 100644
--- a/arb/bell_fmpz.c
+++ b/arb/bell_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "flint/double_extras.h"
diff --git a/arb/bell_sum_bsplit.c b/arb/bell_sum_bsplit.c
index 0c5b9d7c..8cde48dc 100644
--- a/arb/bell_sum_bsplit.c
+++ b/arb/bell_sum_bsplit.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/bell_sum_taylor.c b/arb/bell_sum_taylor.c
index 90073f75..405403dd 100644
--- a/arb/bell_sum_taylor.c
+++ b/arb/bell_sum_taylor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "arb_poly.h"
diff --git a/arb/bernoulli_fmpz.c b/arb/bernoulli_fmpz.c
index e1338f18..0b8891d3 100644
--- a/arb/bernoulli_fmpz.c
+++ b/arb/bernoulli_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/bernoulli_poly_ui.c b/arb/bernoulli_poly_ui.c
index 8f3115ac..30393d16 100644
--- a/arb/bernoulli_poly_ui.c
+++ b/arb/bernoulli_poly_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/bernoulli_ui.c b/arb/bernoulli_ui.c
index a8352afc..11fc97a2 100644
--- a/arb/bernoulli_ui.c
+++ b/arb/bernoulli_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "bernoulli.h"
diff --git a/arb/bernoulli_ui_zeta.c b/arb/bernoulli_ui_zeta.c
index 3d46949c..dd492cc7 100644
--- a/arb/bernoulli_ui_zeta.c
+++ b/arb/bernoulli_ui_zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/bin.c b/arb/bin.c
index e58abca1..dc5d0cdb 100644
--- a/arb/bin.c
+++ b/arb/bin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/can_round_mpfr.c b/arb/can_round_mpfr.c
index 6ea05f94..e48e64be 100644
--- a/arb/can_round_mpfr.c
+++ b/arb/can_round_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/ceil.c b/arb/ceil.c
index 39618fe5..ec6bdb7a 100644
--- a/arb/ceil.c
+++ b/arb/ceil.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/chebyshev_t2_ui.c b/arb/chebyshev_t2_ui.c
index 9b49d609..31399dc9 100644
--- a/arb/chebyshev_t2_ui.c
+++ b/arb/chebyshev_t2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/chebyshev_t_ui.c b/arb/chebyshev_t_ui.c
index 74fa6a84..e4f56af3 100644
--- a/arb/chebyshev_t_ui.c
+++ b/arb/chebyshev_t_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/chebyshev_u2_ui.c b/arb/chebyshev_u2_ui.c
index bea32258..03484821 100644
--- a/arb/chebyshev_u2_ui.c
+++ b/arb/chebyshev_u2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/chebyshev_u_ui.c b/arb/chebyshev_u_ui.c
index 44564a15..c62ccc0f 100644
--- a/arb/chebyshev_u_ui.c
+++ b/arb/chebyshev_u_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/const_apery.c b/arb/const_apery.c
index 47f05bee..88dd3509 100644
--- a/arb/const_apery.c
+++ b/arb/const_apery.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_catalan.c b/arb/const_catalan.c
index bd924593..e2587767 100644
--- a/arb/const_catalan.c
+++ b/arb/const_catalan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_e.c b/arb/const_e.c
index 2727588a..bb5254ac 100644
--- a/arb/const_e.c
+++ b/arb/const_e.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_euler.c b/arb/const_euler.c
index 9bff7d69..3d6df2fb 100644
--- a/arb/const_euler.c
+++ b/arb/const_euler.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_glaisher.c b/arb/const_glaisher.c
index 0ea78564..f424c205 100644
--- a/arb/const_glaisher.c
+++ b/arb/const_glaisher.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb_poly.h"
diff --git a/arb/const_khinchin.c b/arb/const_khinchin.c
index d449012c..a5ab717e 100644
--- a/arb/const_khinchin.c
+++ b/arb/const_khinchin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "arb.h"
diff --git a/arb/const_log10.c b/arb/const_log10.c
index 37549c70..94883e30 100644
--- a/arb/const_log10.c
+++ b/arb/const_log10.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_log2.c b/arb/const_log2.c
index a7a4cd04..c79899d0 100644
--- a/arb/const_log2.c
+++ b/arb/const_log2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_log_sqrt2pi.c b/arb/const_log_sqrt2pi.c
index 8de7667b..da844240 100644
--- a/arb/const_log_sqrt2pi.c
+++ b/arb/const_log_sqrt2pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/const_pi.c b/arb/const_pi.c
index 58fe3e9a..93da8eae 100644
--- a/arb/const_pi.c
+++ b/arb/const_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "hypgeom.h"
diff --git a/arb/const_sqrt_pi.c b/arb/const_sqrt_pi.c
index 1842b369..7937e4e7 100644
--- a/arb/const_sqrt_pi.c
+++ b/arb/const_sqrt_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains.c b/arb/contains.c
index de2bd8a3..7d00ab7e 100644
--- a/arb/contains.c
+++ b/arb/contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_arf.c b/arb/contains_arf.c
index 3c751da6..eaa9eccb 100644
--- a/arb/contains_arf.c
+++ b/arb/contains_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_fmpq.c b/arb/contains_fmpq.c
index 4fff4907..d31666ce 100644
--- a/arb/contains_fmpq.c
+++ b/arb/contains_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_fmpz.c b/arb/contains_fmpz.c
index 21211cd6..b11d28f8 100644
--- a/arb/contains_fmpz.c
+++ b/arb/contains_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_int.c b/arb/contains_int.c
index 3fe4a901..1f2c0f70 100644
--- a/arb/contains_int.c
+++ b/arb/contains_int.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_mpfr.c b/arb/contains_mpfr.c
index 3f24bcd5..dc34653a 100644
--- a/arb/contains_mpfr.c
+++ b/arb/contains_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/contains_si.c b/arb/contains_si.c
index f3bc53a6..10b2b85d 100644
--- a/arb/contains_si.c
+++ b/arb/contains_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/cot.c b/arb/cot.c
index 3d02cfff..5c88604c 100644
--- a/arb/cot.c
+++ b/arb/cot.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/cot_pi.c b/arb/cot_pi.c
index b9707e10..0f504e32 100644
--- a/arb/cot_pi.c
+++ b/arb/cot_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/coth.c b/arb/coth.c
index f523bad0..7636b45f 100644
--- a/arb/coth.c
+++ b/arb/coth.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/digamma.c b/arb/digamma.c
index bf6fb285..0d0774ce 100644
--- a/arb/digamma.c
+++ b/arb/digamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb.h"
diff --git a/arb/div.c b/arb/div.c
index fe1fad64..cc87969f 100644
--- a/arb/div.c
+++ b/arb/div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/div_2expm1_ui.c b/arb/div_2expm1_ui.c
index 22ad100f..0a89e2ff 100644
--- a/arb/div_2expm1_ui.c
+++ b/arb/div_2expm1_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/doublefac_ui.c b/arb/doublefac_ui.c
index f899bf51..9b71959e 100644
--- a/arb/doublefac_ui.c
+++ b/arb/doublefac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/euler_number_fmpz.c b/arb/euler_number_fmpz.c
index 150202f8..33e54695 100644
--- a/arb/euler_number_fmpz.c
+++ b/arb/euler_number_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/euler_number_ui.c b/arb/euler_number_ui.c
index dd174f70..caad2551 100644
--- a/arb/euler_number_ui.c
+++ b/arb/euler_number_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb_dirichlet.h"
diff --git a/arb/exp.c b/arb/exp.c
index 012dca12..d6df8c0e 100644
--- a/arb/exp.c
+++ b/arb/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_arf_bb.c b/arb/exp_arf_bb.c
index 06160f43..7c784719 100644
--- a/arb/exp_arf_bb.c
+++ b/arb/exp_arf_bb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_sum_bs_powtab.c b/arb/exp_sum_bs_powtab.c
index 62303787..05d73582 100644
--- a/arb/exp_sum_bs_powtab.c
+++ b/arb/exp_sum_bs_powtab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_sum_bs_simple.c b/arb/exp_sum_bs_simple.c
index 00ad02e0..c70670ae 100644
--- a/arb/exp_sum_bs_simple.c
+++ b/arb/exp_sum_bs_simple.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_tab.c b/arb/exp_tab.c
index 3ddd0db2..576da932 100644
--- a/arb/exp_tab.c
+++ b/arb/exp_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_taylor_bound.c b/arb/exp_taylor_bound.c
index 953dbe50..e486d913 100644
--- a/arb/exp_taylor_bound.c
+++ b/arb/exp_taylor_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_taylor_naive.c b/arb/exp_taylor_naive.c
index 4293a03e..1514484a 100644
--- a/arb/exp_taylor_naive.c
+++ b/arb/exp_taylor_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/exp_taylor_rs.c b/arb/exp_taylor_rs.c
index 7411461d..dd35512a 100644
--- a/arb/exp_taylor_rs.c
+++ b/arb/exp_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/fac.c b/arb/fac.c
index 03bd76ab..e431f32d 100644
--- a/arb/fac.c
+++ b/arb/fac.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/fib.c b/arb/fib.c
index d2375984..92b6acd7 100644
--- a/arb/fib.c
+++ b/arb/fib.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/floor.c b/arb/floor.c
index dc9d66af..d4dd3fee 100644
--- a/arb/floor.c
+++ b/arb/floor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/fprint.c b/arb/fprint.c
index 7a25b982..921be66e 100644
--- a/arb/fprint.c
+++ b/arb/fprint.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/gamma.c b/arb/gamma.c
index 5d8fb344..c11752b5 100644
--- a/arb/gamma.c
+++ b/arb/gamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb.h"
diff --git a/arb/get_fmpz_mid_rad_10exp.c b/arb/get_fmpz_mid_rad_10exp.c
index a4a32bef..8ff1090f 100644
--- a/arb/get_fmpz_mid_rad_10exp.c
+++ b/arb/get_fmpz_mid_rad_10exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_interval_arf.c b/arb/get_interval_arf.c
index 22fb263e..15104804 100644
--- a/arb/get_interval_arf.c
+++ b/arb/get_interval_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_interval_fmpz_2exp.c b/arb/get_interval_fmpz_2exp.c
index bef1882b..4c4e5d31 100644
--- a/arb/get_interval_fmpz_2exp.c
+++ b/arb/get_interval_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_interval_mpfr.c b/arb/get_interval_mpfr.c
index f1f1c44c..8a42a4b7 100644
--- a/arb/get_interval_mpfr.c
+++ b/arb/get_interval_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_mag_lower.c b/arb/get_mag_lower.c
index 0b7a6004..01ff185b 100644
--- a/arb/get_mag_lower.c
+++ b/arb/get_mag_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_mag_lower_nonnegative.c b/arb/get_mag_lower_nonnegative.c
index 924645c4..45ba7ba9 100644
--- a/arb/get_mag_lower_nonnegative.c
+++ b/arb/get_mag_lower_nonnegative.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_mpn_fixed_mod_log2.c b/arb/get_mpn_fixed_mod_log2.c
index ab0b4bcd..138c3f56 100644
--- a/arb/get_mpn_fixed_mod_log2.c
+++ b/arb/get_mpn_fixed_mod_log2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_mpn_fixed_mod_pi4.c b/arb/get_mpn_fixed_mod_pi4.c
index 6b208fd5..a2756485 100644
--- a/arb/get_mpn_fixed_mod_pi4.c
+++ b/arb/get_mpn_fixed_mod_pi4.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_rand_fmpq.c b/arb/get_rand_fmpq.c
index 59e4010f..eff2854f 100644
--- a/arb/get_rand_fmpq.c
+++ b/arb/get_rand_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/get_str.c b/arb/get_str.c
index 4dd17a21..619ebf4a 100644
--- a/arb/get_str.c
+++ b/arb/get_str.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <string.h>
 #include <ctype.h>
diff --git a/arb/get_unique_fmpz.c b/arb/get_unique_fmpz.c
index ba5e8821..94537a8c 100644
--- a/arb/get_unique_fmpz.c
+++ b/arb/get_unique_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/hurwitz_zeta.c b/arb/hurwitz_zeta.c
index 84af16b6..9b791603 100644
--- a/arb/hurwitz_zeta.c
+++ b/arb/hurwitz_zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb.h"
diff --git a/arb/hypot.c b/arb/hypot.c
index 21845dac..4bfadbc2 100644
--- a/arb/hypot.c
+++ b/arb/hypot.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/inlines.c b/arb/inlines.c
index 106c1af7..08edc244 100644
--- a/arb/inlines.c
+++ b/arb/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ARB_INLINES_C
 #include "arb.h"
diff --git a/arb/intersection.c b/arb/intersection.c
index 63e9b6dc..ef229c14 100644
--- a/arb/intersection.c
+++ b/arb/intersection.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/log.c b/arb/log.c
index 09e11aeb..e9fc85a3 100644
--- a/arb/log.c
+++ b/arb/log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/log1p.c b/arb/log1p.c
index 0cd27def..ed0b3431 100644
--- a/arb/log1p.c
+++ b/arb/log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/log_base_ui.c b/arb/log_base_ui.c
index b07ed388..ec130440 100644
--- a/arb/log_base_ui.c
+++ b/arb/log_base_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/log_tab.c b/arb/log_tab.c
index cc5d1607..237ced84 100644
--- a/arb/log_tab.c
+++ b/arb/log_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/log_ui_from_prev.c b/arb/log_ui_from_prev.c
index e66204db..d22aace3 100644
--- a/arb/log_ui_from_prev.c
+++ b/arb/log_ui_from_prev.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/max.c b/arb/max.c
index 7643ff52..0ca0b5ae 100644
--- a/arb/max.c
+++ b/arb/max.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/min.c b/arb/min.c
index f752fefc..a513b498 100644
--- a/arb/min.c
+++ b/arb/min.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/mul.c b/arb/mul.c
index 5e9b6b1e..12096c5d 100644
--- a/arb/mul.c
+++ b/arb/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/neg.c b/arb/neg.c
index c8a09d46..1f77321b 100644
--- a/arb/neg.c
+++ b/arb/neg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/neg_round.c b/arb/neg_round.c
index b2ea1c34..34a0c50e 100644
--- a/arb/neg_round.c
+++ b/arb/neg_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/overlaps.c b/arb/overlaps.c
index bade99e6..8ef3defa 100644
--- a/arb/overlaps.c
+++ b/arb/overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/partitions_fmpz.c b/arb/partitions_fmpz.c
index 95dad17f..860cfadd 100644
--- a/arb/partitions_fmpz.c
+++ b/arb/partitions_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "partitions.h"
diff --git a/arb/polylog.c b/arb/polylog.c
index 888b3fe8..eef3d6a9 100644
--- a/arb/polylog.c
+++ b/arb/polylog.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb.h"
diff --git a/arb/pow.c b/arb/pow.c
index 41f1b2a6..2249fdb5 100644
--- a/arb/pow.c
+++ b/arb/pow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/pow_fmpq.c b/arb/pow_fmpq.c
index 6225cbe6..639ca39a 100644
--- a/arb/pow_fmpq.c
+++ b/arb/pow_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/pow_fmpz.c b/arb/pow_fmpz.c
index 90588f2f..4f00bb05 100644
--- a/arb/pow_fmpz.c
+++ b/arb/pow_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/pow_fmpz_binexp.c b/arb/pow_fmpz_binexp.c
index 999d59aa..2116acc0 100644
--- a/arb/pow_fmpz_binexp.c
+++ b/arb/pow_fmpz_binexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/power_sum_vec.c b/arb/power_sum_vec.c
index a670fc8b..121be53f 100644
--- a/arb/power_sum_vec.c
+++ b/arb/power_sum_vec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "bernoulli.h"
diff --git a/arb/randtest.c b/arb/randtest.c
index f997c68a..27ce5921 100644
--- a/arb/randtest.c
+++ b/arb/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rel_error_bits.c b/arb/rel_error_bits.c
index b43c2a5d..224e2a27 100644
--- a/arb/rel_error_bits.c
+++ b/arb/rel_error_bits.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/richcmp.c b/arb/richcmp.c
index 1fbcde6f..f2f44bc8 100644
--- a/arb/richcmp.c
+++ b/arb/richcmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising2_ui.c b/arb/rising2_ui.c
index 79d75c7d..2dd66fc9 100644
--- a/arb/rising2_ui.c
+++ b/arb/rising2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising2_ui_bs.c b/arb/rising2_ui_bs.c
index a43aebd0..a815c138 100644
--- a/arb/rising2_ui_bs.c
+++ b/arb/rising2_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising2_ui_rs.c b/arb/rising2_ui_rs.c
index 9476f24b..17fe2d0a 100644
--- a/arb/rising2_ui_rs.c
+++ b/arb/rising2_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/fmpz_poly.h"
 #include "arb.h"
diff --git a/arb/rising_fmpq_ui.c b/arb/rising_fmpq_ui.c
index 1a46d30b..bb318962 100644
--- a/arb/rising_fmpq_ui.c
+++ b/arb/rising_fmpq_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising_ui.c b/arb/rising_ui.c
index 1d41b083..429144d0 100644
--- a/arb/rising_ui.c
+++ b/arb/rising_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising_ui_bs.c b/arb/rising_ui_bs.c
index 23076366..6c1fe90c 100644
--- a/arb/rising_ui_bs.c
+++ b/arb/rising_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising_ui_rec.c b/arb/rising_ui_rec.c
index 8724695a..654f2253 100644
--- a/arb/rising_ui_rec.c
+++ b/arb/rising_ui_rec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rising_ui_rs.c b/arb/rising_ui_rs.c
index c4296fda..35737cf0 100644
--- a/arb/rising_ui_rs.c
+++ b/arb/rising_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb.h"
diff --git a/arb/root_ui.c b/arb/root_ui.c
index 6af33386..5877bbd3 100644
--- a/arb/root_ui.c
+++ b/arb/root_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/rsqrt.c b/arb/rsqrt.c
index af0f2248..50cd2bc2 100644
--- a/arb/rsqrt.c
+++ b/arb/rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "arb.h"
diff --git a/arb/set.c b/arb/set.c
index 033aae93..025f4ddf 100644
--- a/arb/set.c
+++ b/arb/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_interval_arf.c b/arb/set_interval_arf.c
index ae5f7218..4e1577ba 100644
--- a/arb/set_interval_arf.c
+++ b/arb/set_interval_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_interval_mpfr.c b/arb/set_interval_mpfr.c
index b9e3d44c..22c5da78 100644
--- a/arb/set_interval_mpfr.c
+++ b/arb/set_interval_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_round.c b/arb/set_round.c
index ad6c1876..732dfc9e 100644
--- a/arb/set_round.c
+++ b/arb/set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_round_fmpz.c b/arb/set_round_fmpz.c
index d126785c..4768b5e1 100644
--- a/arb/set_round_fmpz.c
+++ b/arb/set_round_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_round_fmpz_2exp.c b/arb/set_round_fmpz_2exp.c
index f41cf662..ec878603 100644
--- a/arb/set_round_fmpz_2exp.c
+++ b/arb/set_round_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/set_str.c b/arb/set_str.c
index 1599ef10..2f492db3 100644
--- a/arb/set_str.c
+++ b/arb/set_str.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <string.h>
 #include <ctype.h>
diff --git a/arb/sgn.c b/arb/sgn.c
index 6e4c6802..097ad185 100644
--- a/arb/sgn.c
+++ b/arb/sgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sin_cos.c b/arb/sin_cos.c
index 00699379..de1ee0eb 100644
--- a/arb/sin_cos.c
+++ b/arb/sin_cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/mpn_extras.h"
 #include "arb.h"
diff --git a/arb/sin_cos_pi.c b/arb/sin_cos_pi.c
index cea3eb31..c4a2a793 100644
--- a/arb/sin_cos_pi.c
+++ b/arb/sin_cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sin_cos_pi_fmpq.c b/arb/sin_cos_pi_fmpq.c
index 49460ea0..9cd4d642 100644
--- a/arb/sin_cos_pi_fmpq.c
+++ b/arb/sin_cos_pi_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sin_cos_pi_fmpq_algebraic.c b/arb/sin_cos_pi_fmpq_algebraic.c
index a4a8ee47..8ecad3d9 100644
--- a/arb/sin_cos_pi_fmpq_algebraic.c
+++ b/arb/sin_cos_pi_fmpq_algebraic.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "arb_poly.h"
diff --git a/arb/sin_cos_tab.c b/arb/sin_cos_tab.c
index 68e3b13b..8ade2ce8 100644
--- a/arb/sin_cos_tab.c
+++ b/arb/sin_cos_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sin_cos_taylor_naive.c b/arb/sin_cos_taylor_naive.c
index b18c205f..a9baa420 100644
--- a/arb/sin_cos_taylor_naive.c
+++ b/arb/sin_cos_taylor_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sin_cos_taylor_rs.c b/arb/sin_cos_taylor_rs.c
index 8bfe9e82..aa933513 100644
--- a/arb/sin_cos_taylor_rs.c
+++ b/arb/sin_cos_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sinc.c b/arb/sinc.c
index fc8d93ad..a2c53c80 100644
--- a/arb/sinc.c
+++ b/arb/sinc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sinh_cosh.c b/arb/sinh_cosh.c
index 0342de94..6ff572c1 100644
--- a/arb/sinh_cosh.c
+++ b/arb/sinh_cosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sqrt.c b/arb/sqrt.c
index 9914fac3..faf1a801 100644
--- a/arb/sqrt.c
+++ b/arb/sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sqrt1pm1.c b/arb/sqrt1pm1.c
index 2f3b7815..da34b49b 100644
--- a/arb/sqrt1pm1.c
+++ b/arb/sqrt1pm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sqrtpos.c b/arb/sqrtpos.c
index 2c998517..9561effc 100644
--- a/arb/sqrtpos.c
+++ b/arb/sqrtpos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/sub.c b/arb/sub.c
index 448b5221..398f9897 100644
--- a/arb/sub.c
+++ b/arb/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/submul.c b/arb/submul.c
index fbf06dc5..001f8d8e 100644
--- a/arb/submul.c
+++ b/arb/submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/tan.c b/arb/tan.c
index 80179e2f..b4ff3006 100644
--- a/arb/tan.c
+++ b/arb/tan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/tan_pi.c b/arb/tan_pi.c
index f55e8201..48669c28 100644
--- a/arb/tan_pi.c
+++ b/arb/tan_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/tanh.c b/arb/tanh.c
index 0e5d5458..80c2c894 100644
--- a/arb/tanh.c
+++ b/arb/tanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-acos.c b/arb/test/t-acos.c
index 2a9da516..8948d821 100644
--- a/arb/test/t-acos.c
+++ b/arb/test/t-acos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-acosh.c b/arb/test/t-acosh.c
index a1fe4065..dd6366af 100644
--- a/arb/test/t-acosh.c
+++ b/arb/test/t-acosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add.c b/arb/test/t-add.c
index d502883d..c25cf902 100644
--- a/arb/test/t-add.c
+++ b/arb/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add_arf.c b/arb/test/t-add_arf.c
index e13a1a7a..28a30b8f 100644
--- a/arb/test/t-add_arf.c
+++ b/arb/test/t-add_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add_error.c b/arb/test/t-add_error.c
index 3a52cfa2..8d8c8978 100644
--- a/arb/test/t-add_error.c
+++ b/arb/test/t-add_error.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add_fmpz.c b/arb/test/t-add_fmpz.c
index 5463ac8c..5c51c67b 100644
--- a/arb/test/t-add_fmpz.c
+++ b/arb/test/t-add_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add_fmpz_2exp.c b/arb/test/t-add_fmpz_2exp.c
index 9e8566d4..4c00a34d 100644
--- a/arb/test/t-add_fmpz_2exp.c
+++ b/arb/test/t-add_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-add_si.c b/arb/test/t-add_si.c
index 76e58610..5bf0940c 100644
--- a/arb/test/t-add_si.c
+++ b/arb/test/t-add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-add_ui.c b/arb/test/t-add_ui.c
index 3029d91f..bbbe2b21 100644
--- a/arb/test/t-add_ui.c
+++ b/arb/test/t-add_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-addmul.c b/arb/test/t-addmul.c
index f37d9ddd..e4244664 100644
--- a/arb/test/t-addmul.c
+++ b/arb/test/t-addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-addmul_arf.c b/arb/test/t-addmul_arf.c
index fd366e07..f63cddb8 100644
--- a/arb/test/t-addmul_arf.c
+++ b/arb/test/t-addmul_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-addmul_fmpz.c b/arb/test/t-addmul_fmpz.c
index b50075b4..8d23663f 100644
--- a/arb/test/t-addmul_fmpz.c
+++ b/arb/test/t-addmul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-addmul_si.c b/arb/test/t-addmul_si.c
index 6209f9ff..84bc0245 100644
--- a/arb/test/t-addmul_si.c
+++ b/arb/test/t-addmul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-addmul_ui.c b/arb/test/t-addmul_ui.c
index fb6552d2..c957a529 100644
--- a/arb/test/t-addmul_ui.c
+++ b/arb/test/t-addmul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-agm.c b/arb/test/t-agm.c
index 74cc00b5..a3cb1cd8 100644
--- a/arb/test/t-agm.c
+++ b/arb/test/t-agm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-asin.c b/arb/test/t-asin.c
index 242512c9..329a37ab 100644
--- a/arb/test/t-asin.c
+++ b/arb/test/t-asin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-asinh.c b/arb/test/t-asinh.c
index c3b965e9..b8bef20a 100644
--- a/arb/test/t-asinh.c
+++ b/arb/test/t-asinh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan.c b/arb/test/t-atan.c
index 345bb176..5a5fcf8e 100644
--- a/arb/test/t-atan.c
+++ b/arb/test/t-atan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan2.c b/arb/test/t-atan2.c
index 0dc029f4..6c862e05 100644
--- a/arb/test/t-atan2.c
+++ b/arb/test/t-atan2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan_arf.c b/arb/test/t-atan_arf.c
index fef82b8a..7ab687fd 100644
--- a/arb/test/t-atan_arf.c
+++ b/arb/test/t-atan_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan_arf_bb.c b/arb/test/t-atan_arf_bb.c
index 2d8b20bd..b79e4fc3 100644
--- a/arb/test/t-atan_arf_bb.c
+++ b/arb/test/t-atan_arf_bb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan_sum_bs_powtab.c b/arb/test/t-atan_sum_bs_powtab.c
index 7b57610c..4d045804 100644
--- a/arb/test/t-atan_sum_bs_powtab.c
+++ b/arb/test/t-atan_sum_bs_powtab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan_tab.c b/arb/test/t-atan_tab.c
index 0399d1a5..d6e87612 100644
--- a/arb/test/t-atan_tab.c
+++ b/arb/test/t-atan_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-atan_taylor_rs.c b/arb/test/t-atan_taylor_rs.c
index 8a825cbf..3326131c 100644
--- a/arb/test/t-atan_taylor_rs.c
+++ b/arb/test/t-atan_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/mpn_extras.h"
 #include "arb.h"
diff --git a/arb/test/t-atanh.c b/arb/test/t-atanh.c
index 4010c498..6640faab 100644
--- a/arb/test/t-atanh.c
+++ b/arb/test/t-atanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-bell_fmpz.c b/arb/test/t-bell_fmpz.c
index 3718fe4a..d4414455 100644
--- a/arb/test/t-bell_fmpz.c
+++ b/arb/test/t-bell_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "arb.h"
diff --git a/arb/test/t-bell_sum_taylor.c b/arb/test/t-bell_sum_taylor.c
index 73c5aff7..78794043 100644
--- a/arb/test/t-bell_sum_taylor.c
+++ b/arb/test/t-bell_sum_taylor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "arb.h"
diff --git a/arb/test/t-bernoulli_poly_ui.c b/arb/test/t-bernoulli_poly_ui.c
index 5f54688a..4c10c91b 100644
--- a/arb/test/t-bernoulli_poly_ui.c
+++ b/arb/test/t-bernoulli_poly_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "arb.h"
diff --git a/arb/test/t-bernoulli_ui.c b/arb/test/t-bernoulli_ui.c
index 6730d942..8f9653ff 100644
--- a/arb/test/t-bernoulli_ui.c
+++ b/arb/test/t-bernoulli_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "arb.h"
diff --git a/arb/test/t-can_round_mpfr.c b/arb/test/t-can_round_mpfr.c
index e64f0e28..415fef54 100644
--- a/arb/test/t-can_round_mpfr.c
+++ b/arb/test/t-can_round_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-ceil.c b/arb/test/t-ceil.c
index 7a628235..5efc3362 100644
--- a/arb/test/t-ceil.c
+++ b/arb/test/t-ceil.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-chebyshev_t_ui.c b/arb/test/t-chebyshev_t_ui.c
index 71d3a41a..d2d8269b 100644
--- a/arb/test/t-chebyshev_t_ui.c
+++ b/arb/test/t-chebyshev_t_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-chebyshev_u_ui.c b/arb/test/t-chebyshev_u_ui.c
index e395c711..030a4bf0 100644
--- a/arb/test/t-chebyshev_u_ui.c
+++ b/arb/test/t-chebyshev_u_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_apery.c b/arb/test/t-const_apery.c
index 6c7bc7fc..eac5d728 100644
--- a/arb/test/t-const_apery.c
+++ b/arb/test/t-const_apery.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_catalan.c b/arb/test/t-const_catalan.c
index 78e4b1d5..f6f2153c 100644
--- a/arb/test/t-const_catalan.c
+++ b/arb/test/t-const_catalan.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_e.c b/arb/test/t-const_e.c
index 668c4487..b590febd 100644
--- a/arb/test/t-const_e.c
+++ b/arb/test/t-const_e.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_euler.c b/arb/test/t-const_euler.c
index 24f84c6d..aa5c3c28 100644
--- a/arb/test/t-const_euler.c
+++ b/arb/test/t-const_euler.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_glaisher.c b/arb/test/t-const_glaisher.c
index 668cf9e8..e075a1f0 100644
--- a/arb/test/t-const_glaisher.c
+++ b/arb/test/t-const_glaisher.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_khinchin.c b/arb/test/t-const_khinchin.c
index cf7f642b..c5ca2e4e 100644
--- a/arb/test/t-const_khinchin.c
+++ b/arb/test/t-const_khinchin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_log10.c b/arb/test/t-const_log10.c
index 52dd99f4..8d4327e6 100644
--- a/arb/test/t-const_log10.c
+++ b/arb/test/t-const_log10.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_log2.c b/arb/test/t-const_log2.c
index 613dbe53..1d7bade1 100644
--- a/arb/test/t-const_log2.c
+++ b/arb/test/t-const_log2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-const_pi.c b/arb/test/t-const_pi.c
index a6439229..01690644 100644
--- a/arb/test/t-const_pi.c
+++ b/arb/test/t-const_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-contains.c b/arb/test/t-contains.c
index c5c471ff..3df238cd 100644
--- a/arb/test/t-contains.c
+++ b/arb/test/t-contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-contains_arf.c b/arb/test/t-contains_arf.c
index dcb12101..12205886 100644
--- a/arb/test/t-contains_arf.c
+++ b/arb/test/t-contains_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-contains_fmpq.c b/arb/test/t-contains_fmpq.c
index ea37b5eb..add76be7 100644
--- a/arb/test/t-contains_fmpq.c
+++ b/arb/test/t-contains_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-contains_int.c b/arb/test/t-contains_int.c
index 08ed2890..d414ec4e 100644
--- a/arb/test/t-contains_int.c
+++ b/arb/test/t-contains_int.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-cos.c b/arb/test/t-cos.c
index f338e326..04125ffc 100644
--- a/arb/test/t-cos.c
+++ b/arb/test/t-cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-cos_pi.c b/arb/test/t-cos_pi.c
index aa921999..2dfe5b82 100644
--- a/arb/test/t-cos_pi.c
+++ b/arb/test/t-cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-cos_pi_fmpq.c b/arb/test/t-cos_pi_fmpq.c
index 2baa54bf..76fac748 100644
--- a/arb/test/t-cos_pi_fmpq.c
+++ b/arb/test/t-cos_pi_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-cos_pi_fmpq_algebraic.c b/arb/test/t-cos_pi_fmpq_algebraic.c
index c3867585..314ccf25 100644
--- a/arb/test/t-cos_pi_fmpq_algebraic.c
+++ b/arb/test/t-cos_pi_fmpq_algebraic.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-cosh.c b/arb/test/t-cosh.c
index 93014f55..c069f211 100644
--- a/arb/test/t-cosh.c
+++ b/arb/test/t-cosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-coth.c b/arb/test/t-coth.c
index 1bd81db4..188d364c 100644
--- a/arb/test/t-coth.c
+++ b/arb/test/t-coth.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-digamma.c b/arb/test/t-digamma.c
index 2a77a99b..3e96a885 100644
--- a/arb/test/t-digamma.c
+++ b/arb/test/t-digamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-digits_round_inplace.c b/arb/test/t-digits_round_inplace.c
index f219326a..f9116deb 100644
--- a/arb/test/t-digits_round_inplace.c
+++ b/arb/test/t-digits_round_inplace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <string.h>
 #include "arb.h"
diff --git a/arb/test/t-div.c b/arb/test/t-div.c
index f6f6ab4d..c38ef54d 100644
--- a/arb/test/t-div.c
+++ b/arb/test/t-div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-div_2expm1_ui.c b/arb/test/t-div_2expm1_ui.c
index b19cfdfe..c83eb9d4 100644
--- a/arb/test/t-div_2expm1_ui.c
+++ b/arb/test/t-div_2expm1_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-div_arf.c b/arb/test/t-div_arf.c
index 8c74df84..2a68848c 100644
--- a/arb/test/t-div_arf.c
+++ b/arb/test/t-div_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-div_fmpz.c b/arb/test/t-div_fmpz.c
index 4601624d..372c9698 100644
--- a/arb/test/t-div_fmpz.c
+++ b/arb/test/t-div_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-div_si.c b/arb/test/t-div_si.c
index 57d22628..c759e32f 100644
--- a/arb/test/t-div_si.c
+++ b/arb/test/t-div_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-div_ui.c b/arb/test/t-div_ui.c
index 3885c6f4..4b664844 100644
--- a/arb/test/t-div_ui.c
+++ b/arb/test/t-div_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-doublefac_ui.c b/arb/test/t-doublefac_ui.c
index f687bb32..7a3abec4 100644
--- a/arb/test/t-doublefac_ui.c
+++ b/arb/test/t-doublefac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-euler_number_fmpz.c b/arb/test/t-euler_number_fmpz.c
index dde00bd6..0664f996 100644
--- a/arb/test/t-euler_number_fmpz.c
+++ b/arb/test/t-euler_number_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb.h"
diff --git a/arb/test/t-exp.c b/arb/test/t-exp.c
index 40ff3a8c..2cd1348c 100644
--- a/arb/test/t-exp.c
+++ b/arb/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-exp_arf_bb.c b/arb/test/t-exp_arf_bb.c
index 9844ae29..040b36bb 100644
--- a/arb/test/t-exp_arf_bb.c
+++ b/arb/test/t-exp_arf_bb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-exp_invexp.c b/arb/test/t-exp_invexp.c
index 4997aea8..5fb25a71 100644
--- a/arb/test/t-exp_invexp.c
+++ b/arb/test/t-exp_invexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-exp_sum_bs_powtab.c b/arb/test/t-exp_sum_bs_powtab.c
index 58517e97..9d79df76 100644
--- a/arb/test/t-exp_sum_bs_powtab.c
+++ b/arb/test/t-exp_sum_bs_powtab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-exp_tab.c b/arb/test/t-exp_tab.c
index d8a3a67c..a066a6f5 100644
--- a/arb/test/t-exp_tab.c
+++ b/arb/test/t-exp_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-exp_taylor_rs.c b/arb/test/t-exp_taylor_rs.c
index 1ced66f8..c9192544 100644
--- a/arb/test/t-exp_taylor_rs.c
+++ b/arb/test/t-exp_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/mpn_extras.h"
 #include "arb.h"
diff --git a/arb/test/t-expm1.c b/arb/test/t-expm1.c
index c85b8177..09c87a7c 100644
--- a/arb/test/t-expm1.c
+++ b/arb/test/t-expm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-fac_ui.c b/arb/test/t-fac_ui.c
index 08da3fd0..4279d2d1 100644
--- a/arb/test/t-fac_ui.c
+++ b/arb/test/t-fac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-floor.c b/arb/test/t-floor.c
index 40c7d44d..1511cbfc 100644
--- a/arb/test/t-floor.c
+++ b/arb/test/t-floor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-gamma.c b/arb/test/t-gamma.c
index eae7a80b..5037bbb6 100644
--- a/arb/test/t-gamma.c
+++ b/arb/test/t-gamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-gamma_fmpq.c b/arb/test/t-gamma_fmpq.c
index 72615320..8df99630 100644
--- a/arb/test/t-gamma_fmpq.c
+++ b/arb/test/t-gamma_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_fmpz_mid_rad_10exp.c b/arb/test/t-get_fmpz_mid_rad_10exp.c
index 39eae39e..276fad2b 100644
--- a/arb/test/t-get_fmpz_mid_rad_10exp.c
+++ b/arb/test/t-get_fmpz_mid_rad_10exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_interval_arf.c b/arb/test/t-get_interval_arf.c
index 439b87ae..1045bd69 100644
--- a/arb/test/t-get_interval_arf.c
+++ b/arb/test/t-get_interval_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_interval_fmpz_2exp.c b/arb/test/t-get_interval_fmpz_2exp.c
index 719b5ebf..866a11ec 100644
--- a/arb/test/t-get_interval_fmpz_2exp.c
+++ b/arb/test/t-get_interval_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_interval_mpfr.c b/arb/test/t-get_interval_mpfr.c
index 2c693a7a..4804f156 100644
--- a/arb/test/t-get_interval_mpfr.c
+++ b/arb/test/t-get_interval_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_mag.c b/arb/test/t-get_mag.c
index 00e209ab..e22abb03 100644
--- a/arb/test/t-get_mag.c
+++ b/arb/test/t-get_mag.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_mag_lower.c b/arb/test/t-get_mag_lower.c
index b72ea3fb..10c98b94 100644
--- a/arb/test/t-get_mag_lower.c
+++ b/arb/test/t-get_mag_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_mag_lower_nonnegative.c b/arb/test/t-get_mag_lower_nonnegative.c
index b000ec8f..e08d4551 100644
--- a/arb/test/t-get_mag_lower_nonnegative.c
+++ b/arb/test/t-get_mag_lower_nonnegative.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_mpn_fixed_mod_log2.c b/arb/test/t-get_mpn_fixed_mod_log2.c
index 7b6a39e2..72a1b725 100644
--- a/arb/test/t-get_mpn_fixed_mod_log2.c
+++ b/arb/test/t-get_mpn_fixed_mod_log2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_mpn_fixed_mod_pi4.c b/arb/test/t-get_mpn_fixed_mod_pi4.c
index 714309d4..81370680 100644
--- a/arb/test/t-get_mpn_fixed_mod_pi4.c
+++ b/arb/test/t-get_mpn_fixed_mod_pi4.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_rand_fmpq.c b/arb/test/t-get_rand_fmpq.c
index 76101471..565f3cbf 100644
--- a/arb/test/t-get_rand_fmpq.c
+++ b/arb/test/t-get_rand_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-get_str.c b/arb/test/t-get_str.c
index cc49858c..5bc72899 100644
--- a/arb/test/t-get_str.c
+++ b/arb/test/t-get_str.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <string.h>
 #include "arb.h"
diff --git a/arb/test/t-get_unique_fmpz.c b/arb/test/t-get_unique_fmpz.c
index 8997cfb1..f56d0bb2 100644
--- a/arb/test/t-get_unique_fmpz.c
+++ b/arb/test/t-get_unique_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-hurwitz_zeta.c b/arb/test/t-hurwitz_zeta.c
index 995d357c..a145d1c8 100644
--- a/arb/test/t-hurwitz_zeta.c
+++ b/arb/test/t-hurwitz_zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb.h"
diff --git a/arb/test/t-intersection.c b/arb/test/t-intersection.c
index 31cbb096..dd8a68f4 100644
--- a/arb/test/t-intersection.c
+++ b/arb/test/t-intersection.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-lgamma.c b/arb/test/t-lgamma.c
index 2e38dbad..303eb925 100644
--- a/arb/test/t-lgamma.c
+++ b/arb/test/t-lgamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log.c b/arb/test/t-log.c
index 0222020e..8fc91637 100644
--- a/arb/test/t-log.c
+++ b/arb/test/t-log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log1p.c b/arb/test/t-log1p.c
index 814d886e..4a5f15f5 100644
--- a/arb/test/t-log1p.c
+++ b/arb/test/t-log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log_arf.c b/arb/test/t-log_arf.c
index 488af534..82c77cd9 100644
--- a/arb/test/t-log_arf.c
+++ b/arb/test/t-log_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log_base_ui.c b/arb/test/t-log_base_ui.c
index d998b61d..0730895a 100644
--- a/arb/test/t-log_base_ui.c
+++ b/arb/test/t-log_base_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log_tab.c b/arb/test/t-log_tab.c
index 706f581d..03d4a373 100644
--- a/arb/test/t-log_tab.c
+++ b/arb/test/t-log_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-log_ui_from_prev.c b/arb/test/t-log_ui_from_prev.c
index 9e0f83f6..47d772ad 100644
--- a/arb/test/t-log_ui_from_prev.c
+++ b/arb/test/t-log_ui_from_prev.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-max.c b/arb/test/t-max.c
index 1542cd5c..b774b71d 100644
--- a/arb/test/t-max.c
+++ b/arb/test/t-max.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-min.c b/arb/test/t-min.c
index 8c1feab8..bd6bf848 100644
--- a/arb/test/t-min.c
+++ b/arb/test/t-min.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-mul.c b/arb/test/t-mul.c
index 35fcc2f6..faa14145 100644
--- a/arb/test/t-mul.c
+++ b/arb/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-mul_arf.c b/arb/test/t-mul_arf.c
index edd285fc..67bec9f4 100644
--- a/arb/test/t-mul_arf.c
+++ b/arb/test/t-mul_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-mul_fmpz.c b/arb/test/t-mul_fmpz.c
index 41904f00..63cd46d6 100644
--- a/arb/test/t-mul_fmpz.c
+++ b/arb/test/t-mul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-mul_more.c b/arb/test/t-mul_more.c
index d449e3de..835a4632 100644
--- a/arb/test/t-mul_more.c
+++ b/arb/test/t-mul_more.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-mul_si.c b/arb/test/t-mul_si.c
index a1ac317a..ad02fefb 100644
--- a/arb/test/t-mul_si.c
+++ b/arb/test/t-mul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-mul_ui.c b/arb/test/t-mul_ui.c
index e3f9ffa8..f22b7e0d 100644
--- a/arb/test/t-mul_ui.c
+++ b/arb/test/t-mul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-overlaps.c b/arb/test/t-overlaps.c
index dca194f9..475cbd2b 100644
--- a/arb/test/t-overlaps.c
+++ b/arb/test/t-overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-partitions_fmpz.c b/arb/test/t-partitions_fmpz.c
index 54b490ad..7a49bb24 100644
--- a/arb/test/t-partitions_fmpz.c
+++ b/arb/test/t-partitions_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include "arb.h"
diff --git a/arb/test/t-pow.c b/arb/test/t-pow.c
index ffb745b8..e4c81223 100644
--- a/arb/test/t-pow.c
+++ b/arb/test/t-pow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-pow_fmpq.c b/arb/test/t-pow_fmpq.c
index 63e857e1..b038dd46 100644
--- a/arb/test/t-pow_fmpq.c
+++ b/arb/test/t-pow_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-pow_fmpz.c b/arb/test/t-pow_fmpz.c
index e25f84bd..82dca8d7 100644
--- a/arb/test/t-pow_fmpz.c
+++ b/arb/test/t-pow_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-power_sum_vec.c b/arb/test/t-power_sum_vec.c
index b3ac9e25..7374fa14 100644
--- a/arb/test/t-power_sum_vec.c
+++ b/arb/test/t-power_sum_vec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rgamma.c b/arb/test/t-rgamma.c
index 8a3c3067..7454421d 100644
--- a/arb/test/t-rgamma.c
+++ b/arb/test/t-rgamma.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-richcmp.c b/arb/test/t-richcmp.c
index 44e39082..fdc20519 100644
--- a/arb/test/t-richcmp.c
+++ b/arb/test/t-richcmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rising2_ui.c b/arb/test/t-rising2_ui.c
index 26406c05..ee88208b 100644
--- a/arb/test/t-rising2_ui.c
+++ b/arb/test/t-rising2_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb_poly.h"
diff --git a/arb/test/t-rising2_ui_bs.c b/arb/test/t-rising2_ui_bs.c
index a25b3991..d5aa3b8e 100644
--- a/arb/test/t-rising2_ui_bs.c
+++ b/arb/test/t-rising2_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb_poly.h"
diff --git a/arb/test/t-rising2_ui_rs.c b/arb/test/t-rising2_ui_rs.c
index bc9668ab..8607520b 100644
--- a/arb/test/t-rising2_ui_rs.c
+++ b/arb/test/t-rising2_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "arb_poly.h"
diff --git a/arb/test/t-rising_ui.c b/arb/test/t-rising_ui.c
index da8a0222..174972f5 100644
--- a/arb/test/t-rising_ui.c
+++ b/arb/test/t-rising_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rising_ui_bs.c b/arb/test/t-rising_ui_bs.c
index 3e0d94da..c05f40d0 100644
--- a/arb/test/t-rising_ui_bs.c
+++ b/arb/test/t-rising_ui_bs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rising_ui_rec.c b/arb/test/t-rising_ui_rec.c
index bdf05f22..6013939b 100644
--- a/arb/test/t-rising_ui_rec.c
+++ b/arb/test/t-rising_ui_rec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rising_ui_rs.c b/arb/test/t-rising_ui_rs.c
index 34729b2f..4ad81f33 100644
--- a/arb/test/t-rising_ui_rs.c
+++ b/arb/test/t-rising_ui_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of arb.
-
-    arb is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    arb is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with arb; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-root_ui.c b/arb/test/t-root_ui.c
index ebdd174c..46dac025 100644
--- a/arb/test/t-root_ui.c
+++ b/arb/test/t-root_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-rsqrt.c b/arb/test/t-rsqrt.c
index 0752bb03..08a7c546 100644
--- a/arb/test/t-rsqrt.c
+++ b/arb/test/t-rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-set_interval_arf.c b/arb/test/t-set_interval_arf.c
index b3d48691..7eb71e6b 100644
--- a/arb/test/t-set_interval_arf.c
+++ b/arb/test/t-set_interval_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-set_interval_mpfr.c b/arb/test/t-set_interval_mpfr.c
index f1523cf3..1c9290b3 100644
--- a/arb/test/t-set_interval_mpfr.c
+++ b/arb/test/t-set_interval_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-set_str.c b/arb/test/t-set_str.c
index 78fa51bd..5990a2af 100644
--- a/arb/test/t-set_str.c
+++ b/arb/test/t-set_str.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <string.h>
 #include "arb.h"
diff --git a/arb/test/t-sgn.c b/arb/test/t-sgn.c
index 7c76b466..19a59cb4 100644
--- a/arb/test/t-sgn.c
+++ b/arb/test/t-sgn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin.c b/arb/test/t-sin.c
index d910eed6..612cd5cb 100644
--- a/arb/test/t-sin.c
+++ b/arb/test/t-sin.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos.c b/arb/test/t-sin_cos.c
index 803337e1..5afff5f4 100644
--- a/arb/test/t-sin_cos.c
+++ b/arb/test/t-sin_cos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos_pi.c b/arb/test/t-sin_cos_pi.c
index 8b57782c..3bf1512d 100644
--- a/arb/test/t-sin_cos_pi.c
+++ b/arb/test/t-sin_cos_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos_pi_fmpq.c b/arb/test/t-sin_cos_pi_fmpq.c
index 3fe45695..61da74f8 100644
--- a/arb/test/t-sin_cos_pi_fmpq.c
+++ b/arb/test/t-sin_cos_pi_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos_pi_fmpq_algebraic.c b/arb/test/t-sin_cos_pi_fmpq_algebraic.c
index c2fd32c3..848d7901 100644
--- a/arb/test/t-sin_cos_pi_fmpq_algebraic.c
+++ b/arb/test/t-sin_cos_pi_fmpq_algebraic.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos_tab.c b/arb/test/t-sin_cos_tab.c
index 48e11917..d694e22b 100644
--- a/arb/test/t-sin_cos_tab.c
+++ b/arb/test/t-sin_cos_tab.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_cos_taylor_rs.c b/arb/test/t-sin_cos_taylor_rs.c
index 4b948284..d2777f9a 100644
--- a/arb/test/t-sin_cos_taylor_rs.c
+++ b/arb/test/t-sin_cos_taylor_rs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/mpn_extras.h"
 #include "arb.h"
diff --git a/arb/test/t-sin_pi.c b/arb/test/t-sin_pi.c
index 289b311a..51e60807 100644
--- a/arb/test/t-sin_pi.c
+++ b/arb/test/t-sin_pi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_pi_fmpq.c b/arb/test/t-sin_pi_fmpq.c
index b1d993ea..df51807d 100644
--- a/arb/test/t-sin_pi_fmpq.c
+++ b/arb/test/t-sin_pi_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sin_pi_fmpq_algebraic.c b/arb/test/t-sin_pi_fmpq_algebraic.c
index 6796cd22..bc782f5c 100644
--- a/arb/test/t-sin_pi_fmpq_algebraic.c
+++ b/arb/test/t-sin_pi_fmpq_algebraic.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sinc.c b/arb/test/t-sinc.c
index a5e8c06b..219d7cb8 100644
--- a/arb/test/t-sinc.c
+++ b/arb/test/t-sinc.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sinh.c b/arb/test/t-sinh.c
index 012c4247..3527a374 100644
--- a/arb/test/t-sinh.c
+++ b/arb/test/t-sinh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sinh_cosh.c b/arb/test/t-sinh_cosh.c
index c84aedf3..620d7ddc 100644
--- a/arb/test/t-sinh_cosh.c
+++ b/arb/test/t-sinh_cosh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-special.c b/arb/test/t-special.c
index 9e342b71..86529dca 100644
--- a/arb/test/t-special.c
+++ b/arb/test/t-special.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sqrt.c b/arb/test/t-sqrt.c
index 83e9a8b9..eff24d0b 100644
--- a/arb/test/t-sqrt.c
+++ b/arb/test/t-sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sqrt1pm1.c b/arb/test/t-sqrt1pm1.c
index 74caeabc..0f26b99b 100644
--- a/arb/test/t-sqrt1pm1.c
+++ b/arb/test/t-sqrt1pm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sqrtpos.c b/arb/test/t-sqrtpos.c
index f0332b60..df250079 100644
--- a/arb/test/t-sqrtpos.c
+++ b/arb/test/t-sqrtpos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sub.c b/arb/test/t-sub.c
index 01fc3a41..ede11036 100644
--- a/arb/test/t-sub.c
+++ b/arb/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sub_arf.c b/arb/test/t-sub_arf.c
index 00dceb08..e7f7e8d4 100644
--- a/arb/test/t-sub_arf.c
+++ b/arb/test/t-sub_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sub_fmpz.c b/arb/test/t-sub_fmpz.c
index bf4dd151..d9b9ddfc 100644
--- a/arb/test/t-sub_fmpz.c
+++ b/arb/test/t-sub_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-sub_si.c b/arb/test/t-sub_si.c
index 4ede37c4..4f2c6050 100644
--- a/arb/test/t-sub_si.c
+++ b/arb/test/t-sub_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-sub_ui.c b/arb/test/t-sub_ui.c
index e08f512a..7733d0ef 100644
--- a/arb/test/t-sub_ui.c
+++ b/arb/test/t-sub_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-submul.c b/arb/test/t-submul.c
index 9e496915..fee47e62 100644
--- a/arb/test/t-submul.c
+++ b/arb/test/t-submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-submul_arf.c b/arb/test/t-submul_arf.c
index 1ec33abc..a07a9037 100644
--- a/arb/test/t-submul_arf.c
+++ b/arb/test/t-submul_arf.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-submul_fmpz.c b/arb/test/t-submul_fmpz.c
index 7f595e6e..76a840b1 100644
--- a/arb/test/t-submul_fmpz.c
+++ b/arb/test/t-submul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-submul_si.c b/arb/test/t-submul_si.c
index 077dd289..4fa4c686 100644
--- a/arb/test/t-submul_si.c
+++ b/arb/test/t-submul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/long_extras.h"
diff --git a/arb/test/t-submul_ui.c b/arb/test/t-submul_ui.c
index 4b5585a1..87e3005b 100644
--- a/arb/test/t-submul_ui.c
+++ b/arb/test/t-submul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "flint/ulong_extras.h"
diff --git a/arb/test/t-tanh.c b/arb/test/t-tanh.c
index a9a533e8..619b6da8 100644
--- a/arb/test/t-tanh.c
+++ b/arb/test/t-tanh.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-trim.c b/arb/test/t-trim.c
index 54451522..4fd7c641 100644
--- a/arb/test/t-trim.c
+++ b/arb/test/t-trim.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-union.c b/arb/test/t-union.c
index 3eac0729..3aea32f9 100644
--- a/arb/test/t-union.c
+++ b/arb/test/t-union.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta.c b/arb/test/t-zeta.c
index a4be7f9c..8e85e93b 100644
--- a/arb/test/t-zeta.c
+++ b/arb/test/t-zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui.c b/arb/test/t-zeta_ui.c
index 65d89453..1223b37c 100644
--- a/arb/test/t-zeta_ui.c
+++ b/arb/test/t-zeta_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_asymp.c b/arb/test/t-zeta_ui_asymp.c
index c42c2fe6..4895d9f4 100644
--- a/arb/test/t-zeta_ui_asymp.c
+++ b/arb/test/t-zeta_ui_asymp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_bernoulli.c b/arb/test/t-zeta_ui_bernoulli.c
index 330a5a67..dc109f1d 100644
--- a/arb/test/t-zeta_ui_bernoulli.c
+++ b/arb/test/t-zeta_ui_bernoulli.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_borwein_bsplit.c b/arb/test/t-zeta_ui_borwein_bsplit.c
index faa3d8d2..4713e953 100644
--- a/arb/test/t-zeta_ui_borwein_bsplit.c
+++ b/arb/test/t-zeta_ui_borwein_bsplit.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_euler_product.c b/arb/test/t-zeta_ui_euler_product.c
index 27fa0824..02f4d4ee 100644
--- a/arb/test/t-zeta_ui_euler_product.c
+++ b/arb/test/t-zeta_ui_euler_product.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_vec.c b/arb/test/t-zeta_ui_vec.c
index 9c791706..30d47ef6 100644
--- a/arb/test/t-zeta_ui_vec.c
+++ b/arb/test/t-zeta_ui_vec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test/t-zeta_ui_vec_borwein.c b/arb/test/t-zeta_ui_vec_borwein.c
index 32cbd5f0..afdb1402 100644
--- a/arb/test/t-zeta_ui_vec_borwein.c
+++ b/arb/test/t-zeta_ui_vec_borwein.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/test_multiplier.c b/arb/test_multiplier.c
index 2d2e969d..9927ccd6 100644
--- a/arb/test_multiplier.c
+++ b/arb/test_multiplier.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdlib.h>
 #include "arb.h"
diff --git a/arb/trim.c b/arb/trim.c
index c89b0fca..459608c0 100644
--- a/arb/trim.c
+++ b/arb/trim.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/union.c b/arb/union.c
index f66a591e..ca5c8b97 100644
--- a/arb/union.c
+++ b/arb/union.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/version.c b/arb/version.c
index e564eb8a..b7fc517b 100644
--- a/arb/version.c
+++ b/arb/version.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/zeta.c b/arb/zeta.c
index d28a0d9b..ac865ef4 100644
--- a/arb/zeta.c
+++ b/arb/zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb.h"
diff --git a/arb/zeta_ui.c b/arb/zeta_ui.c
index d10f6f57..3987cd6c 100644
--- a/arb/zeta_ui.c
+++ b/arb/zeta_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "flint/arith.h"
diff --git a/arb/zeta_ui_bernoulli.c b/arb/zeta_ui_bernoulli.c
index 19694940..6a34b19a 100644
--- a/arb/zeta_ui_bernoulli.c
+++ b/arb/zeta_ui_bernoulli.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "bernoulli.h"
diff --git a/arb/zeta_ui_borwein_bsplit.c b/arb/zeta_ui_borwein_bsplit.c
index c7e0e82d..936006f4 100644
--- a/arb/zeta_ui_borwein_bsplit.c
+++ b/arb/zeta_ui_borwein_bsplit.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/zeta_ui_euler_product.c b/arb/zeta_ui_euler_product.c
index 7d409a2d..e542f412 100644
--- a/arb/zeta_ui_euler_product.c
+++ b/arb/zeta_ui_euler_product.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 #include "acb_dirichlet.h"
diff --git a/arb/zeta_ui_vec.c b/arb/zeta_ui_vec.c
index b799e4ea..2a7c3190 100644
--- a/arb/zeta_ui_vec.c
+++ b/arb/zeta_ui_vec.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/zeta_ui_vec_borwein.c b/arb/zeta_ui_vec_borwein.c
index ce2ee9a2..ee2fb04f 100644
--- a/arb/zeta_ui_vec_borwein.c
+++ b/arb/zeta_ui_vec_borwein.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/zeta_ui_vec_even.c b/arb/zeta_ui_vec_even.c
index 83072036..61e102f4 100644
--- a/arb/zeta_ui_vec_even.c
+++ b/arb/zeta_ui_vec_even.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb/zeta_ui_vec_odd.c b/arb/zeta_ui_vec_odd.c
index 9f5c5bb7..7cbea0f5 100644
--- a/arb/zeta_ui_vec_odd.c
+++ b/arb/zeta_ui_vec_odd.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb.h"
 
diff --git a/arb_calc.h b/arb_calc.h
index 06cc8d64..a1f53a45 100644
--- a/arb_calc.h
+++ b/arb_calc.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ARB_CALC_H
 #define ARB_CALC_H
diff --git a/arb_calc/isolate_roots.c b/arb_calc/isolate_roots.c
index ac425fbb..07471530 100644
--- a/arb_calc/isolate_roots.c
+++ b/arb_calc/isolate_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/newton_conv_factor.c b/arb_calc/newton_conv_factor.c
index f88bad93..ba09eaa4 100644
--- a/arb_calc/newton_conv_factor.c
+++ b/arb_calc/newton_conv_factor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/newton_step.c b/arb_calc/newton_step.c
index d09fbece..2749ce29 100644
--- a/arb_calc/newton_step.c
+++ b/arb_calc/newton_step.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/refine_root_bisect.c b/arb_calc/refine_root_bisect.c
index b48af088..61e608b1 100644
--- a/arb_calc/refine_root_bisect.c
+++ b/arb_calc/refine_root_bisect.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/refine_root_newton.c b/arb_calc/refine_root_newton.c
index ecb64592..fbb52cc7 100644
--- a/arb_calc/refine_root_newton.c
+++ b/arb_calc/refine_root_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/test/t-isolate_roots.c b/arb_calc/test/t-isolate_roots.c
index 738e0678..b01f10a7 100644
--- a/arb_calc/test/t-isolate_roots.c
+++ b/arb_calc/test/t-isolate_roots.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_calc/verbose.c b/arb_calc/verbose.c
index a0189f42..6a577044 100644
--- a/arb_calc/verbose.c
+++ b/arb_calc/verbose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_calc.h"
 
diff --git a/arb_mat.h b/arb_mat.h
index aae93a32..203da3e6 100644
--- a/arb_mat.h
+++ b/arb_mat.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ARB_MAT_H
 #define ARB_MAT_H
diff --git a/arb_mat/add.c b/arb_mat/add.c
index 02279572..9d6e444d 100644
--- a/arb_mat/add.c
+++ b/arb_mat/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/bound_frobenius_norm.c b/arb_mat/bound_frobenius_norm.c
index f9f544cd..312a28cc 100644
--- a/arb_mat/bound_frobenius_norm.c
+++ b/arb_mat/bound_frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/bound_inf_norm.c b/arb_mat/bound_inf_norm.c
index f9e9a8f2..43a2985c 100644
--- a/arb_mat/bound_inf_norm.c
+++ b/arb_mat/bound_inf_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/charpoly.c b/arb_mat/charpoly.c
index f3361c80..c17cf860 100644
--- a/arb_mat/charpoly.c
+++ b/arb_mat/charpoly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Sebastian Pancratz
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/cho.c b/arb_mat/cho.c
index 177b3269..d6d2b015 100644
--- a/arb_mat/cho.c
+++ b/arb_mat/cho.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/clear.c b/arb_mat/clear.c
index 4e8eccdd..3ce72243 100644
--- a/arb_mat/clear.c
+++ b/arb_mat/clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/contains.c b/arb_mat/contains.c
index 62dc4263..c2491658 100644
--- a/arb_mat/contains.c
+++ b/arb_mat/contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/contains_fmpq_mat.c b/arb_mat/contains_fmpq_mat.c
index 2497c4b4..bd6aaf31 100644
--- a/arb_mat/contains_fmpq_mat.c
+++ b/arb_mat/contains_fmpq_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/contains_fmpz_mat.c b/arb_mat/contains_fmpz_mat.c
index e440294d..b76387d1 100644
--- a/arb_mat/contains_fmpz_mat.c
+++ b/arb_mat/contains_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/count_is_zero.c b/arb_mat/count_is_zero.c
index c7177393..d9f00ab2 100644
--- a/arb_mat/count_is_zero.c
+++ b/arb_mat/count_is_zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/det.c b/arb_mat/det.c
index 68c43b57..d8a90c42 100644
--- a/arb_mat/det.c
+++ b/arb_mat/det.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/entrywise_is_zero.c b/arb_mat/entrywise_is_zero.c
index 9491d0db..2f26cb39 100644
--- a/arb_mat/entrywise_is_zero.c
+++ b/arb_mat/entrywise_is_zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/entrywise_not_is_zero.c b/arb_mat/entrywise_not_is_zero.c
index e5fad8f3..fce9d998 100644
--- a/arb_mat/entrywise_not_is_zero.c
+++ b/arb_mat/entrywise_not_is_zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/eq.c b/arb_mat/eq.c
index c656db34..0489e412 100644
--- a/arb_mat/eq.c
+++ b/arb_mat/eq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/equal.c b/arb_mat/equal.c
index ed77718b..53bd6c47 100644
--- a/arb_mat/equal.c
+++ b/arb_mat/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/exp.c b/arb_mat/exp.c
index d3bdcc4f..f2e49106 100644
--- a/arb_mat/exp.c
+++ b/arb_mat/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "arb_mat.h"
diff --git a/arb_mat/exp_taylor_sum.c b/arb_mat/exp_taylor_sum.c
index 9ff63b15..c5d6c84a 100644
--- a/arb_mat/exp_taylor_sum.c
+++ b/arb_mat/exp_taylor_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/find_pivot_partial.c b/arb_mat/find_pivot_partial.c
index b2279882..439a93fc 100644
--- a/arb_mat/find_pivot_partial.c
+++ b/arb_mat/find_pivot_partial.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/fprintd.c b/arb_mat/fprintd.c
index 6497548d..f03fd48f 100644
--- a/arb_mat/fprintd.c
+++ b/arb_mat/fprintd.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/frobenius_norm.c b/arb_mat/frobenius_norm.c
index ede5240f..2e97c509 100644
--- a/arb_mat/frobenius_norm.c
+++ b/arb_mat/frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/init.c b/arb_mat/init.c
index 7cbd1522..abb8a252 100644
--- a/arb_mat/init.c
+++ b/arb_mat/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/inlines.c b/arb_mat/inlines.c
index e5b34585..6cb1fd67 100644
--- a/arb_mat/inlines.c
+++ b/arb_mat/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ARB_MAT_INLINES_C
 #include "arb_mat.h"
diff --git a/arb_mat/inv.c b/arb_mat/inv.c
index 98f9b3f6..224d7add 100644
--- a/arb_mat/inv.c
+++ b/arb_mat/inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/inv_cho_precomp.c b/arb_mat/inv_cho_precomp.c
index fd48e216..873915ff 100644
--- a/arb_mat/inv_cho_precomp.c
+++ b/arb_mat/inv_cho_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/inv_ldl_precomp.c b/arb_mat/inv_ldl_precomp.c
index 305d253d..26c02e8c 100644
--- a/arb_mat/inv_ldl_precomp.c
+++ b/arb_mat/inv_ldl_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/ldl.c b/arb_mat/ldl.c
index 0e49e6bb..4c4c7b8e 100644
--- a/arb_mat/ldl.c
+++ b/arb_mat/ldl.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/lu.c b/arb_mat/lu.c
index a362528e..e2a46c37 100644
--- a/arb_mat/lu.c
+++ b/arb_mat/lu.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/mul.c b/arb_mat/mul.c
index 13d1dcd3..ad9a1482 100644
--- a/arb_mat/mul.c
+++ b/arb_mat/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/mul_classical.c b/arb_mat/mul_classical.c
index ed4d783c..cac52d4c 100644
--- a/arb_mat/mul_classical.c
+++ b/arb_mat/mul_classical.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/mul_entrywise.c b/arb_mat/mul_entrywise.c
index cc0a900d..195f1f4f 100644
--- a/arb_mat/mul_entrywise.c
+++ b/arb_mat/mul_entrywise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/mul_threaded.c b/arb_mat/mul_threaded.c
index 353ff64b..0b5d9cdc 100644
--- a/arb_mat/mul_threaded.c
+++ b/arb_mat/mul_threaded.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 #include "pthread.h"
diff --git a/arb_mat/ne.c b/arb_mat/ne.c
index ebc1f759..403ee290 100644
--- a/arb_mat/ne.c
+++ b/arb_mat/ne.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/neg.c b/arb_mat/neg.c
index a64c7cc4..26f0fdce 100644
--- a/arb_mat/neg.c
+++ b/arb_mat/neg.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/one.c b/arb_mat/one.c
index c26f77a0..c6624cd8 100644
--- a/arb_mat/one.c
+++ b/arb_mat/one.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/overlaps.c b/arb_mat/overlaps.c
index 3c8a4c7f..5cc7da48 100644
--- a/arb_mat/overlaps.c
+++ b/arb_mat/overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/pow_ui.c b/arb_mat/pow_ui.c
index b7a7f180..de45baeb 100644
--- a/arb_mat/pow_ui.c
+++ b/arb_mat/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/randtest.c b/arb_mat/randtest.c
index e21fa2f2..5543894e 100644
--- a/arb_mat/randtest.c
+++ b/arb_mat/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/set.c b/arb_mat/set.c
index d709c717..b450121a 100644
--- a/arb_mat/set.c
+++ b/arb_mat/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/set_fmpq_mat.c b/arb_mat/set_fmpq_mat.c
index 1489bb6c..ad2d7d38 100644
--- a/arb_mat/set_fmpq_mat.c
+++ b/arb_mat/set_fmpq_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/set_fmpz_mat.c b/arb_mat/set_fmpz_mat.c
index 5c20e2a2..dfe43f75 100644
--- a/arb_mat/set_fmpz_mat.c
+++ b/arb_mat/set_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/set_round_fmpz_mat.c b/arb_mat/set_round_fmpz_mat.c
index fd5f8a21..b9b250a4 100644
--- a/arb_mat/set_round_fmpz_mat.c
+++ b/arb_mat/set_round_fmpz_mat.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/solve.c b/arb_mat/solve.c
index 8ff3bdf7..516ccf7b 100644
--- a/arb_mat/solve.c
+++ b/arb_mat/solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/solve_cho_precomp.c b/arb_mat/solve_cho_precomp.c
index 0b834a4e..859fbc85 100644
--- a/arb_mat/solve_cho_precomp.c
+++ b/arb_mat/solve_cho_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/solve_ldl_precomp.c b/arb_mat/solve_ldl_precomp.c
index 3aa4c4e6..9d86bc14 100644
--- a/arb_mat/solve_ldl_precomp.c
+++ b/arb_mat/solve_ldl_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/solve_lu_precomp.c b/arb_mat/solve_lu_precomp.c
index fa423f5e..13c64c51 100644
--- a/arb_mat/solve_lu_precomp.c
+++ b/arb_mat/solve_lu_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/spd_inv.c b/arb_mat/spd_inv.c
index 49714bdf..6e25934b 100644
--- a/arb_mat/spd_inv.c
+++ b/arb_mat/spd_inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/spd_solve.c b/arb_mat/spd_solve.c
index 822d234e..5d8964ab 100644
--- a/arb_mat/spd_solve.c
+++ b/arb_mat/spd_solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/sqr.c b/arb_mat/sqr.c
index d7b41f56..f1af1652 100644
--- a/arb_mat/sqr.c
+++ b/arb_mat/sqr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/sqr_classical.c b/arb_mat/sqr_classical.c
index f9f08b23..309f5681 100644
--- a/arb_mat/sqr_classical.c
+++ b/arb_mat/sqr_classical.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/sub.c b/arb_mat/sub.c
index 7f8e7d83..8206cba8 100644
--- a/arb_mat/sub.c
+++ b/arb_mat/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-charpoly.c b/arb_mat/test/t-charpoly.c
index 97e883ff..b95ac1cf 100644
--- a/arb_mat/test/t-charpoly.c
+++ b/arb_mat/test/t-charpoly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-cho.c b/arb_mat/test/t-cho.c
index ec0ee054..021a7e58 100644
--- a/arb_mat/test/t-cho.c
+++ b/arb_mat/test/t-cho.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-det.c b/arb_mat/test/t-det.c
index c4b3d0e2..f8cf3090 100644
--- a/arb_mat/test/t-det.c
+++ b/arb_mat/test/t-det.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-exp.c b/arb_mat/test/t-exp.c
index 7611c69d..87ca2101 100644
--- a/arb_mat/test/t-exp.c
+++ b/arb_mat/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-exp_taylor_sum.c b/arb_mat/test/t-exp_taylor_sum.c
index 4a9fd8e0..9640ed64 100644
--- a/arb_mat/test/t-exp_taylor_sum.c
+++ b/arb_mat/test/t-exp_taylor_sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-frobenius_norm.c b/arb_mat/test/t-frobenius_norm.c
index ed1e158d..6d7e1ae0 100644
--- a/arb_mat/test/t-frobenius_norm.c
+++ b/arb_mat/test/t-frobenius_norm.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-inv.c b/arb_mat/test/t-inv.c
index 88c79bb9..ae4bb36e 100644
--- a/arb_mat/test/t-inv.c
+++ b/arb_mat/test/t-inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-inv_cho_precomp.c b/arb_mat/test/t-inv_cho_precomp.c
index c2f52394..e169b3ad 100644
--- a/arb_mat/test/t-inv_cho_precomp.c
+++ b/arb_mat/test/t-inv_cho_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-inv_ldl_precomp.c b/arb_mat/test/t-inv_ldl_precomp.c
index 1cea55f8..787638a1 100644
--- a/arb_mat/test/t-inv_ldl_precomp.c
+++ b/arb_mat/test/t-inv_ldl_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-ldl.c b/arb_mat/test/t-ldl.c
index 7d10a9e3..48eba5b4 100644
--- a/arb_mat/test/t-ldl.c
+++ b/arb_mat/test/t-ldl.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-lu.c b/arb_mat/test/t-lu.c
index bc405206..6eb499cb 100644
--- a/arb_mat/test/t-lu.c
+++ b/arb_mat/test/t-lu.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-mul.c b/arb_mat/test/t-mul.c
index 73cd2b33..7c8556fe 100644
--- a/arb_mat/test/t-mul.c
+++ b/arb_mat/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-mul_entrywise.c b/arb_mat/test/t-mul_entrywise.c
index d4d5395c..abc603d1 100644
--- a/arb_mat/test/t-mul_entrywise.c
+++ b/arb_mat/test/t-mul_entrywise.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-mul_threaded.c b/arb_mat/test/t-mul_threaded.c
index 95d9c729..63d497bb 100644
--- a/arb_mat/test/t-mul_threaded.c
+++ b/arb_mat/test/t-mul_threaded.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-solve.c b/arb_mat/test/t-solve.c
index ccb24d1b..7a95a048 100644
--- a/arb_mat/test/t-solve.c
+++ b/arb_mat/test/t-solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-solve_cho_precomp.c b/arb_mat/test/t-solve_cho_precomp.c
index 08b9557e..5d7816de 100644
--- a/arb_mat/test/t-solve_cho_precomp.c
+++ b/arb_mat/test/t-solve_cho_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-solve_ldl_precomp.c b/arb_mat/test/t-solve_ldl_precomp.c
index b4af84cb..27f4dc11 100644
--- a/arb_mat/test/t-solve_ldl_precomp.c
+++ b/arb_mat/test/t-solve_ldl_precomp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-spd_inv.c b/arb_mat/test/t-spd_inv.c
index 2f417e05..c55fb433 100644
--- a/arb_mat/test/t-spd_inv.c
+++ b/arb_mat/test/t-spd_inv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-spd_solve.c b/arb_mat/test/t-spd_solve.c
index 6e89daf4..ba195e21 100644
--- a/arb_mat/test/t-spd_solve.c
+++ b/arb_mat/test/t-spd_solve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-sqr.c b/arb_mat/test/t-sqr.c
index 5ef29493..77638b76 100644
--- a/arb_mat/test/t-sqr.c
+++ b/arb_mat/test/t-sqr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-trace.c b/arb_mat/test/t-trace.c
index 2d8cdd8a..88f283e6 100644
--- a/arb_mat/test/t-trace.c
+++ b/arb_mat/test/t-trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/test/t-transpose.c b/arb_mat/test/t-transpose.c
index ab2d21a0..1a284131 100644
--- a/arb_mat/test/t-transpose.c
+++ b/arb_mat/test/t-transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/trace.c b/arb_mat/trace.c
index d7eccc50..3b48c43a 100644
--- a/arb_mat/trace.c
+++ b/arb_mat/trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/transpose.c b/arb_mat/transpose.c
index 8e6debe9..1778f26c 100644
--- a/arb_mat/transpose.c
+++ b/arb_mat/transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Tommy Hofmann
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_mat/zero.c b/arb_mat/zero.c
index af6225c6..2e5d1b6e 100644
--- a/arb_mat/zero.c
+++ b/arb_mat/zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_mat.h"
 
diff --git a/arb_poly.h b/arb_poly.h
index 4327191d..03e01f60 100644
--- a/arb_poly.h
+++ b/arb_poly.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ARB_POLY_H
 #define ARB_POLY_H
diff --git a/arb_poly/acos_series.c b/arb_poly/acos_series.c
index eb38e546..b6b9f105 100644
--- a/arb_poly/acos_series.c
+++ b/arb_poly/acos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/add.c b/arb_poly/add.c
index 26aaaa17..fa74646d 100644
--- a/arb_poly/add.c
+++ b/arb_poly/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/add_si.c b/arb_poly/add_si.c
index f1c2520d..7f4aa6c4 100644
--- a/arb_poly/add_si.c
+++ b/arb_poly/add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/asin_series.c b/arb_poly/asin_series.c
index d693c37f..9c9c73de 100644
--- a/arb_poly/asin_series.c
+++ b/arb_poly/asin_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/atan_series.c b/arb_poly/atan_series.c
index cec9c71e..219f7f11 100644
--- a/arb_poly/atan_series.c
+++ b/arb_poly/atan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/binomial_transform.c b/arb_poly/binomial_transform.c
index 8a8cd9d6..195dc44d 100644
--- a/arb_poly/binomial_transform.c
+++ b/arb_poly/binomial_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/binomial_transform_basecase.c b/arb_poly/binomial_transform_basecase.c
index 249dbea4..302fefff 100644
--- a/arb_poly/binomial_transform_basecase.c
+++ b/arb_poly/binomial_transform_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/binomial_transform_convolution.c b/arb_poly/binomial_transform_convolution.c
index 3493842a..ddc503e0 100644
--- a/arb_poly/binomial_transform_convolution.c
+++ b/arb_poly/binomial_transform_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "arb_poly.h"
diff --git a/arb_poly/borel_transform.c b/arb_poly/borel_transform.c
index 30a510bd..3581c180 100644
--- a/arb_poly/borel_transform.c
+++ b/arb_poly/borel_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/clear.c b/arb_poly/clear.c
index f3487cc7..5b792964 100644
--- a/arb_poly/clear.c
+++ b/arb_poly/clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/compose.c b/arb_poly/compose.c
index 2a5c1bc3..2e95b791 100644
--- a/arb_poly/compose.c
+++ b/arb_poly/compose.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012, 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/compose_divconquer.c b/arb_poly/compose_divconquer.c
index 143bb914..b3dfe170 100644
--- a/arb_poly/compose_divconquer.c
+++ b/arb_poly/compose_divconquer.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/compose_horner.c b/arb_poly/compose_horner.c
index e7cd3ea7..408aad16 100644
--- a/arb_poly/compose_horner.c
+++ b/arb_poly/compose_horner.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 William Hart
     Copyright (C) 2012 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/compose_series.c b/arb_poly/compose_series.c
index c5581aab..3e984d81 100644
--- a/arb_poly/compose_series.c
+++ b/arb_poly/compose_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/compose_series_brent_kung.c b/arb_poly/compose_series_brent_kung.c
index d5901688..ed885ec5 100644
--- a/arb_poly/compose_series_brent_kung.c
+++ b/arb_poly/compose_series_brent_kung.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 #include "arb_mat.h"
diff --git a/arb_poly/compose_series_horner.c b/arb_poly/compose_series_horner.c
index c9b619c2..09d94da5 100644
--- a/arb_poly/compose_series_horner.c
+++ b/arb_poly/compose_series_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/contains.c b/arb_poly/contains.c
index 0d351f04..739ff883 100644
--- a/arb_poly/contains.c
+++ b/arb_poly/contains.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/contains_fmpq_poly.c b/arb_poly/contains_fmpq_poly.c
index 41bed009..2f153ca9 100644
--- a/arb_poly/contains_fmpq_poly.c
+++ b/arb_poly/contains_fmpq_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/contains_fmpz_poly.c b/arb_poly/contains_fmpz_poly.c
index 2f0becfd..5acc7090 100644
--- a/arb_poly/contains_fmpz_poly.c
+++ b/arb_poly/contains_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/cos_pi_series.c b/arb_poly/cos_pi_series.c
index bff5b336..e9bd4e92 100644
--- a/arb_poly/cos_pi_series.c
+++ b/arb_poly/cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/cos_series.c b/arb_poly/cos_series.c
index 06ef0572..94d01888 100644
--- a/arb_poly/cos_series.c
+++ b/arb_poly/cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/cosh_series.c b/arb_poly/cosh_series.c
index 477cdae9..12e01e8e 100644
--- a/arb_poly/cosh_series.c
+++ b/arb_poly/cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/cot_pi_series.c b/arb_poly/cot_pi_series.c
index b6e3b559..c34649af 100644
--- a/arb_poly/cot_pi_series.c
+++ b/arb_poly/cot_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/derivative.c b/arb_poly/derivative.c
index 5984983e..eb887ea9 100644
--- a/arb_poly/derivative.c
+++ b/arb_poly/derivative.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/digamma_series.c b/arb_poly/digamma_series.c
index edc75f1e..511c35b3 100644
--- a/arb_poly/digamma_series.c
+++ b/arb_poly/digamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/div_root.c b/arb_poly/div_root.c
index cc2cd0f0..0ab2b8fa 100644
--- a/arb_poly/div_root.c
+++ b/arb_poly/div_root.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/div_series.c b/arb_poly/div_series.c
index 93f7f5c8..98561074 100644
--- a/arb_poly/div_series.c
+++ b/arb_poly/div_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/divrem.c b/arb_poly/divrem.c
index b1a86614..ca0e97f1 100644
--- a/arb_poly/divrem.c
+++ b/arb_poly/divrem.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/equal.c b/arb_poly/equal.c
index 8c22647f..43be2f25 100644
--- a/arb_poly/equal.c
+++ b/arb_poly/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate.c b/arb_poly/evaluate.c
index 340a0b19..d9c5c388 100644
--- a/arb_poly/evaluate.c
+++ b/arb_poly/evaluate.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2.c b/arb_poly/evaluate2.c
index a7587000..90773ab2 100644
--- a/arb_poly/evaluate2.c
+++ b/arb_poly/evaluate2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2_acb.c b/arb_poly/evaluate2_acb.c
index cbf54066..4930a884 100644
--- a/arb_poly/evaluate2_acb.c
+++ b/arb_poly/evaluate2_acb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2_acb_horner.c b/arb_poly/evaluate2_acb_horner.c
index 937f81ad..47a39b1e 100644
--- a/arb_poly/evaluate2_acb_horner.c
+++ b/arb_poly/evaluate2_acb_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2_acb_rectangular.c b/arb_poly/evaluate2_acb_rectangular.c
index c7341bb7..cfdac34b 100644
--- a/arb_poly/evaluate2_acb_rectangular.c
+++ b/arb_poly/evaluate2_acb_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2_horner.c b/arb_poly/evaluate2_horner.c
index 8ed6d5bd..ce18c8ca 100644
--- a/arb_poly/evaluate2_horner.c
+++ b/arb_poly/evaluate2_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate2_rectangular.c b/arb_poly/evaluate2_rectangular.c
index cf0111f7..02d35247 100644
--- a/arb_poly/evaluate2_rectangular.c
+++ b/arb_poly/evaluate2_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_acb.c b/arb_poly/evaluate_acb.c
index 989cd01b..3d22f9d7 100644
--- a/arb_poly/evaluate_acb.c
+++ b/arb_poly/evaluate_acb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_acb_horner.c b/arb_poly/evaluate_acb_horner.c
index 2fcfeea0..d66e3cd8 100644
--- a/arb_poly/evaluate_acb_horner.c
+++ b/arb_poly/evaluate_acb_horner.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_acb_rectangular.c b/arb_poly/evaluate_acb_rectangular.c
index 5244fdac..7bcc5bef 100644
--- a/arb_poly/evaluate_acb_rectangular.c
+++ b/arb_poly/evaluate_acb_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_horner.c b/arb_poly/evaluate_horner.c
index d14ed64e..a331c022 100644
--- a/arb_poly/evaluate_horner.c
+++ b/arb_poly/evaluate_horner.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_rectangular.c b/arb_poly/evaluate_rectangular.c
index 3bb287fe..7aa51261 100644
--- a/arb_poly/evaluate_rectangular.c
+++ b/arb_poly/evaluate_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_vec_fast.c b/arb_poly/evaluate_vec_fast.c
index 5cd605bd..82aec3f1 100644
--- a/arb_poly/evaluate_vec_fast.c
+++ b/arb_poly/evaluate_vec_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/evaluate_vec_iter.c b/arb_poly/evaluate_vec_iter.c
index 80b7eef7..521f38a6 100644
--- a/arb_poly/evaluate_vec_iter.c
+++ b/arb_poly/evaluate_vec_iter.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/exp_series.c b/arb_poly/exp_series.c
index b6d74a76..82b83833 100644
--- a/arb_poly/exp_series.c
+++ b/arb_poly/exp_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/exp_series_basecase.c b/arb_poly/exp_series_basecase.c
index 4f112a6c..84800b8e 100644
--- a/arb_poly/exp_series_basecase.c
+++ b/arb_poly/exp_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/fit_length.c b/arb_poly/fit_length.c
index afb67e14..0453d6a3 100644
--- a/arb_poly/fit_length.c
+++ b/arb_poly/fit_length.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/fprintd.c b/arb_poly/fprintd.c
index 357d8614..7271516c 100644
--- a/arb_poly/fprintd.c
+++ b/arb_poly/fprintd.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/gamma_series.c b/arb_poly/gamma_series.c
index 05cde829..09813142 100644
--- a/arb_poly/gamma_series.c
+++ b/arb_poly/gamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/get_coeff_arb.c b/arb_poly/get_coeff_arb.c
index ab101c16..cee05879 100644
--- a/arb_poly/get_coeff_arb.c
+++ b/arb_poly/get_coeff_arb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/get_unique_fmpz_poly.c b/arb_poly/get_unique_fmpz_poly.c
index 41fca9b2..a635f9f9 100644
--- a/arb_poly/get_unique_fmpz_poly.c
+++ b/arb_poly/get_unique_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/init.c b/arb_poly/init.c
index 76396481..f7e1ffbe 100644
--- a/arb_poly/init.c
+++ b/arb_poly/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/inlines.c b/arb_poly/inlines.c
index fcad5d9f..45542dc4 100644
--- a/arb_poly/inlines.c
+++ b/arb_poly/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ARB_POLY_INLINES_C
 #include "arb_poly.h"
diff --git a/arb_poly/integral.c b/arb_poly/integral.c
index 623515d8..5346827b 100644
--- a/arb_poly/integral.c
+++ b/arb_poly/integral.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/interpolate_barycentric.c b/arb_poly/interpolate_barycentric.c
index 137401ff..5f220b1e 100644
--- a/arb_poly/interpolate_barycentric.c
+++ b/arb_poly/interpolate_barycentric.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/interpolate_fast.c b/arb_poly/interpolate_fast.c
index 154e826c..8ba8aae4 100644
--- a/arb_poly/interpolate_fast.c
+++ b/arb_poly/interpolate_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/interpolate_newton.c b/arb_poly/interpolate_newton.c
index 034cb00d..31798239 100644
--- a/arb_poly/interpolate_newton.c
+++ b/arb_poly/interpolate_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/inv_borel_transform.c b/arb_poly/inv_borel_transform.c
index 0e41e8d9..dfab6ef3 100644
--- a/arb_poly/inv_borel_transform.c
+++ b/arb_poly/inv_borel_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/inv_series.c b/arb_poly/inv_series.c
index 1694502b..13ee5c71 100644
--- a/arb_poly/inv_series.c
+++ b/arb_poly/inv_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/lgamma_series.c b/arb_poly/lgamma_series.c
index f322b139..95e75361 100644
--- a/arb_poly/lgamma_series.c
+++ b/arb_poly/lgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/log_series.c b/arb_poly/log_series.c
index d8cf547c..769b63a8 100644
--- a/arb_poly/log_series.c
+++ b/arb_poly/log_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/majorant.c b/arb_poly/majorant.c
index 918776fe..6571fafd 100644
--- a/arb_poly/majorant.c
+++ b/arb_poly/majorant.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/mul.c b/arb_poly/mul.c
index ec2d7683..d7143cb3 100644
--- a/arb_poly/mul.c
+++ b/arb_poly/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/mullow.c b/arb_poly/mullow.c
index b9da889a..f687f9e9 100644
--- a/arb_poly/mullow.c
+++ b/arb_poly/mullow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/mullow_block.c b/arb_poly/mullow_block.c
index 17b999a2..31ff4943 100644
--- a/arb_poly/mullow_block.c
+++ b/arb_poly/mullow_block.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "arb_poly.h"
diff --git a/arb_poly/mullow_classical.c b/arb_poly/mullow_classical.c
index 30f7ff7b..ea2dbebc 100644
--- a/arb_poly/mullow_classical.c
+++ b/arb_poly/mullow_classical.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2011 Sebastian Pancratz
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/newton_convergence_factor.c b/arb_poly/newton_convergence_factor.c
index 8f0dcbcb..2b8cd995 100644
--- a/arb_poly/newton_convergence_factor.c
+++ b/arb_poly/newton_convergence_factor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/newton_refine_root.c b/arb_poly/newton_refine_root.c
index d9c3a251..71cff9b8 100644
--- a/arb_poly/newton_refine_root.c
+++ b/arb_poly/newton_refine_root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/newton_step.c b/arb_poly/newton_step.c
index adf6a177..848af83b 100644
--- a/arb_poly/newton_step.c
+++ b/arb_poly/newton_step.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/normalise.c b/arb_poly/normalise.c
index 009593a3..36fb46b7 100644
--- a/arb_poly/normalise.c
+++ b/arb_poly/normalise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/overlaps.c b/arb_poly/overlaps.c
index 0bc8d70f..6c7ef9f9 100644
--- a/arb_poly/overlaps.c
+++ b/arb_poly/overlaps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/pow_arb_series.c b/arb_poly/pow_arb_series.c
index a763c3b5..8838e5fe 100644
--- a/arb_poly/pow_arb_series.c
+++ b/arb_poly/pow_arb_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/pow_series.c b/arb_poly/pow_series.c
index 77e32223..e26759b4 100644
--- a/arb_poly/pow_series.c
+++ b/arb_poly/pow_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/pow_ui.c b/arb_poly/pow_ui.c
index 2edd3a0f..70cbc1f4 100644
--- a/arb_poly/pow_ui.c
+++ b/arb_poly/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/pow_ui_trunc_binexp.c b/arb_poly/pow_ui_trunc_binexp.c
index 71424f53..659f6d22 100644
--- a/arb_poly/pow_ui_trunc_binexp.c
+++ b/arb_poly/pow_ui_trunc_binexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/product_roots.c b/arb_poly/product_roots.c
index fc74df82..7641b49a 100644
--- a/arb_poly/product_roots.c
+++ b/arb_poly/product_roots.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 William Hart
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/randtest.c b/arb_poly/randtest.c
index 07758d45..bb39bb9d 100644
--- a/arb_poly/randtest.c
+++ b/arb_poly/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/reverse.c b/arb_poly/reverse.c
index c54054a1..764dd447 100644
--- a/arb_poly/reverse.c
+++ b/arb_poly/reverse.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/revert_series.c b/arb_poly/revert_series.c
index 3e7581c6..cdc3fa51 100644
--- a/arb_poly/revert_series.c
+++ b/arb_poly/revert_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/revert_series_lagrange.c b/arb_poly/revert_series_lagrange.c
index 2fb3e63b..88e6510f 100644
--- a/arb_poly/revert_series_lagrange.c
+++ b/arb_poly/revert_series_lagrange.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/revert_series_lagrange_fast.c b/arb_poly/revert_series_lagrange_fast.c
index 400c06df..f893fb33 100644
--- a/arb_poly/revert_series_lagrange_fast.c
+++ b/arb_poly/revert_series_lagrange_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/revert_series_newton.c b/arb_poly/revert_series_newton.c
index aeffe4f4..d09b1d15 100644
--- a/arb_poly/revert_series_newton.c
+++ b/arb_poly/revert_series_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/rgamma_series.c b/arb_poly/rgamma_series.c
index d71e8438..a04a8b28 100644
--- a/arb_poly/rgamma_series.c
+++ b/arb_poly/rgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/riemann_siegel_theta_series.c b/arb_poly/riemann_siegel_theta_series.c
index 4467c219..68081a8c 100644
--- a/arb_poly/riemann_siegel_theta_series.c
+++ b/arb_poly/riemann_siegel_theta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 #include "acb_poly.h"
diff --git a/arb_poly/riemann_siegel_z_series.c b/arb_poly/riemann_siegel_z_series.c
index dcc56147..189ef368 100644
--- a/arb_poly/riemann_siegel_z_series.c
+++ b/arb_poly/riemann_siegel_z_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 #include "acb_poly.h"
diff --git a/arb_poly/rising_ui_series.c b/arb_poly/rising_ui_series.c
index 5da595da..798fa324 100644
--- a/arb_poly/rising_ui_series.c
+++ b/arb_poly/rising_ui_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/root_bound_fujiwara.c b/arb_poly/root_bound_fujiwara.c
index 49b7189a..8782683a 100644
--- a/arb_poly/root_bound_fujiwara.c
+++ b/arb_poly/root_bound_fujiwara.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/rsqrt_series.c b/arb_poly/rsqrt_series.c
index 7ee6b163..cd49f5a7 100644
--- a/arb_poly/rsqrt_series.c
+++ b/arb_poly/rsqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set.c b/arb_poly/set.c
index 2f1ddd39..e57d337a 100644
--- a/arb_poly/set.c
+++ b/arb_poly/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_coeff_arb.c b/arb_poly/set_coeff_arb.c
index d6d73fa3..39779d42 100644
--- a/arb_poly/set_coeff_arb.c
+++ b/arb_poly/set_coeff_arb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_coeff_si.c b/arb_poly/set_coeff_si.c
index 42eba63a..9c8f57b2 100644
--- a/arb_poly/set_coeff_si.c
+++ b/arb_poly/set_coeff_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_fmpq_poly.c b/arb_poly/set_fmpq_poly.c
index 7778d7f1..1be41bc5 100644
--- a/arb_poly/set_fmpq_poly.c
+++ b/arb_poly/set_fmpq_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_fmpz_poly.c b/arb_poly/set_fmpz_poly.c
index cc078d88..0522d861 100644
--- a/arb_poly/set_fmpz_poly.c
+++ b/arb_poly/set_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_length.c b/arb_poly/set_length.c
index 3286d069..7a767762 100644
--- a/arb_poly/set_length.c
+++ b/arb_poly/set_length.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_round.c b/arb_poly/set_round.c
index 02ed15b6..20ce82af 100644
--- a/arb_poly/set_round.c
+++ b/arb_poly/set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/set_si.c b/arb_poly/set_si.c
index 71636a8e..a4b8acbf 100644
--- a/arb_poly/set_si.c
+++ b/arb_poly/set_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/shift_left.c b/arb_poly/shift_left.c
index d9605462..42f861c9 100644
--- a/arb_poly/shift_left.c
+++ b/arb_poly/shift_left.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/shift_right.c b/arb_poly/shift_right.c
index ebe6eeb4..534b2fdd 100644
--- a/arb_poly/shift_right.c
+++ b/arb_poly/shift_right.c
@@ -1,29 +1,15 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2008, 2009 William Hart
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_cos_pi_series.c b/arb_poly/sin_cos_pi_series.c
index 429bc518..73f385f5 100644
--- a/arb_poly/sin_cos_pi_series.c
+++ b/arb_poly/sin_cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_cos_series.c b/arb_poly/sin_cos_series.c
index 76546c07..5f7496ea 100644
--- a/arb_poly/sin_cos_series.c
+++ b/arb_poly/sin_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_cos_series_basecase.c b/arb_poly/sin_cos_series_basecase.c
index e79791ab..5c998d27 100644
--- a/arb_poly/sin_cos_series_basecase.c
+++ b/arb_poly/sin_cos_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_cos_series_tangent.c b/arb_poly/sin_cos_series_tangent.c
index e5e4fab9..d02a4761 100644
--- a/arb_poly/sin_cos_series_tangent.c
+++ b/arb_poly/sin_cos_series_tangent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_pi_series.c b/arb_poly/sin_pi_series.c
index 7c8900e1..ca37505e 100644
--- a/arb_poly/sin_pi_series.c
+++ b/arb_poly/sin_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sin_series.c b/arb_poly/sin_series.c
index 2d190117..c739f132 100644
--- a/arb_poly/sin_series.c
+++ b/arb_poly/sin_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sinc_series.c b/arb_poly/sinc_series.c
index 5bc19ed6..e592f16b 100644
--- a/arb_poly/sinc_series.c
+++ b/arb_poly/sinc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sinh_cosh_series.c b/arb_poly/sinh_cosh_series.c
index 7577db77..b9316efc 100644
--- a/arb_poly/sinh_cosh_series.c
+++ b/arb_poly/sinh_cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sinh_cosh_series_basecase.c b/arb_poly/sinh_cosh_series_basecase.c
index 958cca1f..3ce35ba2 100644
--- a/arb_poly/sinh_cosh_series_basecase.c
+++ b/arb_poly/sinh_cosh_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sinh_cosh_series_exponential.c b/arb_poly/sinh_cosh_series_exponential.c
index eb1b27df..e7040040 100644
--- a/arb_poly/sinh_cosh_series_exponential.c
+++ b/arb_poly/sinh_cosh_series_exponential.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sinh_series.c b/arb_poly/sinh_series.c
index 843ec176..2cd79cb2 100644
--- a/arb_poly/sinh_series.c
+++ b/arb_poly/sinh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sqrt_series.c b/arb_poly/sqrt_series.c
index b277c17d..66dba88f 100644
--- a/arb_poly/sqrt_series.c
+++ b/arb_poly/sqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/sub.c b/arb_poly/sub.c
index e04f03a2..e12f72a9 100644
--- a/arb_poly/sub.c
+++ b/arb_poly/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/swinnerton_dyer_ui.c b/arb_poly/swinnerton_dyer_ui.c
index a3740fb0..4f4d0e1d 100644
--- a/arb_poly/swinnerton_dyer_ui.c
+++ b/arb_poly/swinnerton_dyer_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/tan_series.c b/arb_poly/tan_series.c
index 9508ace9..759b54f0 100644
--- a/arb_poly/tan_series.c
+++ b/arb_poly/tan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/taylor_shift.c b/arb_poly/taylor_shift.c
index 5dc98453..7ba3d4cc 100644
--- a/arb_poly/taylor_shift.c
+++ b/arb_poly/taylor_shift.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/taylor_shift_convolution.c b/arb_poly/taylor_shift_convolution.c
index d495a8ac..12e7d4a5 100644
--- a/arb_poly/taylor_shift_convolution.c
+++ b/arb_poly/taylor_shift_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/taylor_shift_divconquer.c b/arb_poly/taylor_shift_divconquer.c
index 7290cca8..46d92462 100644
--- a/arb_poly/taylor_shift_divconquer.c
+++ b/arb_poly/taylor_shift_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/taylor_shift_horner.c b/arb_poly/taylor_shift_horner.c
index bf3108a2..966db637 100644
--- a/arb_poly/taylor_shift_horner.c
+++ b/arb_poly/taylor_shift_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-acos_series.c b/arb_poly/test/t-acos_series.c
index 1049217d..ed8e6567 100644
--- a/arb_poly/test/t-acos_series.c
+++ b/arb_poly/test/t-acos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-add.c b/arb_poly/test/t-add.c
index e99a8714..e6590997 100644
--- a/arb_poly/test/t-add.c
+++ b/arb_poly/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-add_si.c b/arb_poly/test/t-add_si.c
index dee0d6d5..b3236c49 100644
--- a/arb_poly/test/t-add_si.c
+++ b/arb_poly/test/t-add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-asin_series.c b/arb_poly/test/t-asin_series.c
index 4832a176..8f2d3f33 100644
--- a/arb_poly/test/t-asin_series.c
+++ b/arb_poly/test/t-asin_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-atan_series.c b/arb_poly/test/t-atan_series.c
index 32bad3d6..732d95e5 100644
--- a/arb_poly/test/t-atan_series.c
+++ b/arb_poly/test/t-atan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-binomial_transform.c b/arb_poly/test/t-binomial_transform.c
index b990952e..ce90acbc 100644
--- a/arb_poly/test/t-binomial_transform.c
+++ b/arb_poly/test/t-binomial_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-binomial_transform_basecase.c b/arb_poly/test/t-binomial_transform_basecase.c
index 0f2a88b2..fecd6c38 100644
--- a/arb_poly/test/t-binomial_transform_basecase.c
+++ b/arb_poly/test/t-binomial_transform_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-binomial_transform_convolution.c b/arb_poly/test/t-binomial_transform_convolution.c
index 30f9f7f7..9e28e747 100644
--- a/arb_poly/test/t-binomial_transform_convolution.c
+++ b/arb_poly/test/t-binomial_transform_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-borel_transform.c b/arb_poly/test/t-borel_transform.c
index 691cd113..cc261463 100644
--- a/arb_poly/test/t-borel_transform.c
+++ b/arb_poly/test/t-borel_transform.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose.c b/arb_poly/test/t-compose.c
index 0fe376bc..1506fd8e 100644
--- a/arb_poly/test/t-compose.c
+++ b/arb_poly/test/t-compose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose_divconquer.c b/arb_poly/test/t-compose_divconquer.c
index ac3010df..eb47ecc8 100644
--- a/arb_poly/test/t-compose_divconquer.c
+++ b/arb_poly/test/t-compose_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose_horner.c b/arb_poly/test/t-compose_horner.c
index aa4f4fe0..c9d00223 100644
--- a/arb_poly/test/t-compose_horner.c
+++ b/arb_poly/test/t-compose_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose_series.c b/arb_poly/test/t-compose_series.c
index 954b3a3b..02873931 100644
--- a/arb_poly/test/t-compose_series.c
+++ b/arb_poly/test/t-compose_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose_series_brent_kung.c b/arb_poly/test/t-compose_series_brent_kung.c
index a1b1ebaa..28b7144d 100644
--- a/arb_poly/test/t-compose_series_brent_kung.c
+++ b/arb_poly/test/t-compose_series_brent_kung.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-compose_series_horner.c b/arb_poly/test/t-compose_series_horner.c
index 11c855d3..3ffcccfa 100644
--- a/arb_poly/test/t-compose_series_horner.c
+++ b/arb_poly/test/t-compose_series_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-cos_pi_series.c b/arb_poly/test/t-cos_pi_series.c
index b81a75f3..08017274 100644
--- a/arb_poly/test/t-cos_pi_series.c
+++ b/arb_poly/test/t-cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-cot_pi_series.c b/arb_poly/test/t-cot_pi_series.c
index 3d571ec1..8d96d767 100644
--- a/arb_poly/test/t-cot_pi_series.c
+++ b/arb_poly/test/t-cot_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-digamma_series.c b/arb_poly/test/t-digamma_series.c
index e0964e27..de928438 100644
--- a/arb_poly/test/t-digamma_series.c
+++ b/arb_poly/test/t-digamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-div_series.c b/arb_poly/test/t-div_series.c
index 203a0cb3..14a14052 100644
--- a/arb_poly/test/t-div_series.c
+++ b/arb_poly/test/t-div_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-divrem.c b/arb_poly/test/t-divrem.c
index f0419fbc..403c4aa5 100644
--- a/arb_poly/test/t-divrem.c
+++ b/arb_poly/test/t-divrem.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate.c b/arb_poly/test/t-evaluate.c
index 757494d7..8a824123 100644
--- a/arb_poly/test/t-evaluate.c
+++ b/arb_poly/test/t-evaluate.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate2.c b/arb_poly/test/t-evaluate2.c
index 72eeba08..1f46dede 100644
--- a/arb_poly/test/t-evaluate2.c
+++ b/arb_poly/test/t-evaluate2.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate2_acb_rectangular.c b/arb_poly/test/t-evaluate2_acb_rectangular.c
index 859654a0..c6f9762d 100644
--- a/arb_poly/test/t-evaluate2_acb_rectangular.c
+++ b/arb_poly/test/t-evaluate2_acb_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate2_horner.c b/arb_poly/test/t-evaluate2_horner.c
index 1602a72f..f412dc06 100644
--- a/arb_poly/test/t-evaluate2_horner.c
+++ b/arb_poly/test/t-evaluate2_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate2_rectangular.c b/arb_poly/test/t-evaluate2_rectangular.c
index a676b40d..d233263a 100644
--- a/arb_poly/test/t-evaluate2_rectangular.c
+++ b/arb_poly/test/t-evaluate2_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate_acb_rectangular.c b/arb_poly/test/t-evaluate_acb_rectangular.c
index 834f9ee1..51636299 100644
--- a/arb_poly/test/t-evaluate_acb_rectangular.c
+++ b/arb_poly/test/t-evaluate_acb_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate_horner.c b/arb_poly/test/t-evaluate_horner.c
index 7a76828a..bead25a3 100644
--- a/arb_poly/test/t-evaluate_horner.c
+++ b/arb_poly/test/t-evaluate_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate_rectangular.c b/arb_poly/test/t-evaluate_rectangular.c
index 8249a296..703bc8cf 100644
--- a/arb_poly/test/t-evaluate_rectangular.c
+++ b/arb_poly/test/t-evaluate_rectangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate_vec_fast.c b/arb_poly/test/t-evaluate_vec_fast.c
index e9be6692..a85366ad 100644
--- a/arb_poly/test/t-evaluate_vec_fast.c
+++ b/arb_poly/test/t-evaluate_vec_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-evaluate_vec_iter.c b/arb_poly/test/t-evaluate_vec_iter.c
index 08b74294..de22da03 100644
--- a/arb_poly/test/t-evaluate_vec_iter.c
+++ b/arb_poly/test/t-evaluate_vec_iter.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-exp_series.c b/arb_poly/test/t-exp_series.c
index d7e90844..92f46fb6 100644
--- a/arb_poly/test/t-exp_series.c
+++ b/arb_poly/test/t-exp_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-exp_series_basecase.c b/arb_poly/test/t-exp_series_basecase.c
index 54252685..683329f0 100644
--- a/arb_poly/test/t-exp_series_basecase.c
+++ b/arb_poly/test/t-exp_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-gamma_series.c b/arb_poly/test/t-gamma_series.c
index 65b47112..cdab1a6e 100644
--- a/arb_poly/test/t-gamma_series.c
+++ b/arb_poly/test/t-gamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-get_coeff_ptr.c b/arb_poly/test/t-get_coeff_ptr.c
index fcbfc314..51366845 100644
--- a/arb_poly/test/t-get_coeff_ptr.c
+++ b/arb_poly/test/t-get_coeff_ptr.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2010 Sebastian Pancratz
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-get_set_coeff_arb.c b/arb_poly/test/t-get_set_coeff_arb.c
index fbf0b582..2d860656 100644
--- a/arb_poly/test/t-get_set_coeff_arb.c
+++ b/arb_poly/test/t-get_set_coeff_arb.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2009 William Hart
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-get_unique_fmpz_poly.c b/arb_poly/test/t-get_unique_fmpz_poly.c
index 2bbf0957..2475ca4a 100644
--- a/arb_poly/test/t-get_unique_fmpz_poly.c
+++ b/arb_poly/test/t-get_unique_fmpz_poly.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-interpolate_barycentric.c b/arb_poly/test/t-interpolate_barycentric.c
index 6b7be791..e3ce5d7b 100644
--- a/arb_poly/test/t-interpolate_barycentric.c
+++ b/arb_poly/test/t-interpolate_barycentric.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-interpolate_fast.c b/arb_poly/test/t-interpolate_fast.c
index 8cff3cc0..b26394e4 100644
--- a/arb_poly/test/t-interpolate_fast.c
+++ b/arb_poly/test/t-interpolate_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-interpolate_newton.c b/arb_poly/test/t-interpolate_newton.c
index 66010088..c31e082b 100644
--- a/arb_poly/test/t-interpolate_newton.c
+++ b/arb_poly/test/t-interpolate_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-inv_series.c b/arb_poly/test/t-inv_series.c
index d04d369b..dcfe10a8 100644
--- a/arb_poly/test/t-inv_series.c
+++ b/arb_poly/test/t-inv_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-lgamma_series.c b/arb_poly/test/t-lgamma_series.c
index 08257d21..c35f05fc 100644
--- a/arb_poly/test/t-lgamma_series.c
+++ b/arb_poly/test/t-lgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-log_series.c b/arb_poly/test/t-log_series.c
index 2b905ffb..dceb5d9b 100644
--- a/arb_poly/test/t-log_series.c
+++ b/arb_poly/test/t-log_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-mul.c b/arb_poly/test/t-mul.c
index 0da1e9c0..765862b3 100644
--- a/arb_poly/test/t-mul.c
+++ b/arb_poly/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-mullow.c b/arb_poly/test/t-mullow.c
index 8722354f..96174c9b 100644
--- a/arb_poly/test/t-mullow.c
+++ b/arb_poly/test/t-mullow.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-mullow_block.c b/arb_poly/test/t-mullow_block.c
index 891462d5..ba833fdb 100644
--- a/arb_poly/test/t-mullow_block.c
+++ b/arb_poly/test/t-mullow_block.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-mullow_classical.c b/arb_poly/test/t-mullow_classical.c
index e79ac700..c00c93f1 100644
--- a/arb_poly/test/t-mullow_classical.c
+++ b/arb_poly/test/t-mullow_classical.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-pow_arb_series.c b/arb_poly/test/t-pow_arb_series.c
index 9fd54d54..a8901bf7 100644
--- a/arb_poly/test/t-pow_arb_series.c
+++ b/arb_poly/test/t-pow_arb_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-pow_series.c b/arb_poly/test/t-pow_series.c
index a751107a..58d9d2c2 100644
--- a/arb_poly/test/t-pow_series.c
+++ b/arb_poly/test/t-pow_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-pow_ui.c b/arb_poly/test/t-pow_ui.c
index 3c3e50a0..99b70354 100644
--- a/arb_poly/test/t-pow_ui.c
+++ b/arb_poly/test/t-pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-pow_ui_trunc_binexp.c b/arb_poly/test/t-pow_ui_trunc_binexp.c
index 0899a314..841b0f25 100644
--- a/arb_poly/test/t-pow_ui_trunc_binexp.c
+++ b/arb_poly/test/t-pow_ui_trunc_binexp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-revert_series.c b/arb_poly/test/t-revert_series.c
index 878466d7..db5ccb18 100644
--- a/arb_poly/test/t-revert_series.c
+++ b/arb_poly/test/t-revert_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-revert_series_lagrange.c b/arb_poly/test/t-revert_series_lagrange.c
index f60c1cd9..333f09a9 100644
--- a/arb_poly/test/t-revert_series_lagrange.c
+++ b/arb_poly/test/t-revert_series_lagrange.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-revert_series_lagrange_fast.c b/arb_poly/test/t-revert_series_lagrange_fast.c
index 4bc97955..b8d475f2 100644
--- a/arb_poly/test/t-revert_series_lagrange_fast.c
+++ b/arb_poly/test/t-revert_series_lagrange_fast.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-revert_series_newton.c b/arb_poly/test/t-revert_series_newton.c
index 38fefb94..582cb4ff 100644
--- a/arb_poly/test/t-revert_series_newton.c
+++ b/arb_poly/test/t-revert_series_newton.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-rgamma_series.c b/arb_poly/test/t-rgamma_series.c
index a6de32ca..7f686d3d 100644
--- a/arb_poly/test/t-rgamma_series.c
+++ b/arb_poly/test/t-rgamma_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-riemann_siegel_theta_series.c b/arb_poly/test/t-riemann_siegel_theta_series.c
index c2faef44..b49e3dcf 100644
--- a/arb_poly/test/t-riemann_siegel_theta_series.c
+++ b/arb_poly/test/t-riemann_siegel_theta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-riemann_siegel_z_series.c b/arb_poly/test/t-riemann_siegel_z_series.c
index 0c767f25..4240c583 100644
--- a/arb_poly/test/t-riemann_siegel_z_series.c
+++ b/arb_poly/test/t-riemann_siegel_z_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-rising_ui_series.c b/arb_poly/test/t-rising_ui_series.c
index 8de904cd..a7bef84d 100644
--- a/arb_poly/test/t-rising_ui_series.c
+++ b/arb_poly/test/t-rising_ui_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-root_bound_fujiwara.c b/arb_poly/test/t-root_bound_fujiwara.c
index b2944ada..9af7860f 100644
--- a/arb_poly/test/t-root_bound_fujiwara.c
+++ b/arb_poly/test/t-root_bound_fujiwara.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-rsqrt_series.c b/arb_poly/test/t-rsqrt_series.c
index 5708ebb7..512f8d46 100644
--- a/arb_poly/test/t-rsqrt_series.c
+++ b/arb_poly/test/t-rsqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-shift_left_right.c b/arb_poly/test/t-shift_left_right.c
index 534f692e..83b56b0e 100644
--- a/arb_poly/test/t-shift_left_right.c
+++ b/arb_poly/test/t-shift_left_right.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2009 William Hart
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_cos_pi_series.c b/arb_poly/test/t-sin_cos_pi_series.c
index e91b407f..a70b8dda 100644
--- a/arb_poly/test/t-sin_cos_pi_series.c
+++ b/arb_poly/test/t-sin_cos_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_cos_series.c b/arb_poly/test/t-sin_cos_series.c
index 7471b875..7d6ba9c2 100644
--- a/arb_poly/test/t-sin_cos_series.c
+++ b/arb_poly/test/t-sin_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_cos_series_basecase.c b/arb_poly/test/t-sin_cos_series_basecase.c
index 993b739d..050af46c 100644
--- a/arb_poly/test/t-sin_cos_series_basecase.c
+++ b/arb_poly/test/t-sin_cos_series_basecase.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_cos_series_tangent.c b/arb_poly/test/t-sin_cos_series_tangent.c
index b86f976e..24b7c80d 100644
--- a/arb_poly/test/t-sin_cos_series_tangent.c
+++ b/arb_poly/test/t-sin_cos_series_tangent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_pi_series.c b/arb_poly/test/t-sin_pi_series.c
index d2d22ee4..0184b423 100644
--- a/arb_poly/test/t-sin_pi_series.c
+++ b/arb_poly/test/t-sin_pi_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sin_series_cos_series.c b/arb_poly/test/t-sin_series_cos_series.c
index 087b7e67..4dacb2f2 100644
--- a/arb_poly/test/t-sin_series_cos_series.c
+++ b/arb_poly/test/t-sin_series_cos_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sinc_series.c b/arb_poly/test/t-sinc_series.c
index c6ec3f53..ea7ef0cf 100644
--- a/arb_poly/test/t-sinc_series.c
+++ b/arb_poly/test/t-sinc_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sinh_cosh_series.c b/arb_poly/test/t-sinh_cosh_series.c
index 81108cf3..3c7aa144 100644
--- a/arb_poly/test/t-sinh_cosh_series.c
+++ b/arb_poly/test/t-sinh_cosh_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sqrt_series.c b/arb_poly/test/t-sqrt_series.c
index 98e2cde3..76f08024 100644
--- a/arb_poly/test/t-sqrt_series.c
+++ b/arb_poly/test/t-sqrt_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-sub.c b/arb_poly/test/t-sub.c
index e16b1e9c..517fc4e7 100644
--- a/arb_poly/test/t-sub.c
+++ b/arb_poly/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-swinnerton_dyer_ui.c b/arb_poly/test/t-swinnerton_dyer_ui.c
index b2bf8cc0..41e97f0f 100644
--- a/arb_poly/test/t-swinnerton_dyer_ui.c
+++ b/arb_poly/test/t-swinnerton_dyer_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-tan_series.c b/arb_poly/test/t-tan_series.c
index e7f94164..c93bd18a 100644
--- a/arb_poly/test/t-tan_series.c
+++ b/arb_poly/test/t-tan_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-taylor_shift.c b/arb_poly/test/t-taylor_shift.c
index ebdd3c7e..f7ef6ba0 100644
--- a/arb_poly/test/t-taylor_shift.c
+++ b/arb_poly/test/t-taylor_shift.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-taylor_shift_convolution.c b/arb_poly/test/t-taylor_shift_convolution.c
index 2825a4d0..2d1f66f9 100644
--- a/arb_poly/test/t-taylor_shift_convolution.c
+++ b/arb_poly/test/t-taylor_shift_convolution.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-taylor_shift_divconquer.c b/arb_poly/test/t-taylor_shift_divconquer.c
index e3e5b0f5..07589dfb 100644
--- a/arb_poly/test/t-taylor_shift_divconquer.c
+++ b/arb_poly/test/t-taylor_shift_divconquer.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-taylor_shift_horner.c b/arb_poly/test/t-taylor_shift_horner.c
index 9316fc57..1250c690 100644
--- a/arb_poly/test/t-taylor_shift_horner.c
+++ b/arb_poly/test/t-taylor_shift_horner.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/test/t-zeta_series.c b/arb_poly/test/t-zeta_series.c
index daf58f2b..258cd717 100644
--- a/arb_poly/test/t-zeta_series.c
+++ b/arb_poly/test/t-zeta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/tree.c b/arb_poly/tree.c
index 4560d1b7..1f2c5e9e 100644
--- a/arb_poly/tree.c
+++ b/arb_poly/tree.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 
diff --git a/arb_poly/zeta_series.c b/arb_poly/zeta_series.c
index 5dee91eb..162ca278 100644
--- a/arb_poly/zeta_series.c
+++ b/arb_poly/zeta_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arb_poly.h"
 #include "acb_poly.h"
diff --git a/arf.h b/arf.h
index 915c090d..e16d8343 100644
--- a/arf.h
+++ b/arf.h
@@ -1,30 +1,16 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
     2x2 mul code taken from MPFR 2.3.0
     (Copyright (C) 1991-2007 Free Software Foundation, Inc.)
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef ARF_H
 #define ARF_H
diff --git a/arf/abs_bound_lt_2exp_si.c b/arf/abs_bound_lt_2exp_si.c
index 74bd6293..fbab4d2c 100644
--- a/arf/abs_bound_lt_2exp_si.c
+++ b/arf/abs_bound_lt_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/add.c b/arf/add.c
index cc4b3b8f..fb97697e 100644
--- a/arf/add.c
+++ b/arf/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/add_mpn.c b/arf/add_mpn.c
index 1f79e9ad..c4aa3470 100644
--- a/arf/add_mpn.c
+++ b/arf/add_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/addmul.c b/arf/addmul.c
index 41fde7bc..801031da 100644
--- a/arf/addmul.c
+++ b/arf/addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/ceil.c b/arf/ceil.c
index e719cb89..56495e63 100644
--- a/arf/ceil.c
+++ b/arf/ceil.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/cmp.c b/arf/cmp.c
index 6bc46576..489271ed 100644
--- a/arf/cmp.c
+++ b/arf/cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/cmp_2exp_si.c b/arf/cmp_2exp_si.c
index 8e09e5d7..8d086ece 100644
--- a/arf/cmp_2exp_si.c
+++ b/arf/cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/cmpabs.c b/arf/cmpabs.c
index ead14034..7d4540a2 100644
--- a/arf/cmpabs.c
+++ b/arf/cmpabs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/cmpabs_2exp_si.c b/arf/cmpabs_2exp_si.c
index 0411ae90..988a881e 100644
--- a/arf/cmpabs_2exp_si.c
+++ b/arf/cmpabs_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/complex_mul.c b/arf/complex_mul.c
index 084b5b1b..20debad0 100644
--- a/arf/complex_mul.c
+++ b/arf/complex_mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/debug.c b/arf/debug.c
index e6045986..e0b41a09 100644
--- a/arf/debug.c
+++ b/arf/debug.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/div.c b/arf/div.c
index 9e49b403..bfda525d 100644
--- a/arf/div.c
+++ b/arf/div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/mpn_extras.h"
 #include "arf.h"
diff --git a/arf/equal.c b/arf/equal.c
index 69efb18b..96aa721c 100644
--- a/arf/equal.c
+++ b/arf/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/floor.c b/arf/floor.c
index 137f6a07..598382a9 100644
--- a/arf/floor.c
+++ b/arf/floor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/fprint.c b/arf/fprint.c
index 7d14a048..d8e4367d 100644
--- a/arf/fprint.c
+++ b/arf/fprint.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_d.c b/arf/get_d.c
index ea372d56..bb9774d5 100644
--- a/arf/get_d.c
+++ b/arf/get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "arf.h"
diff --git a/arf/get_fmpq.c b/arf/get_fmpq.c
index 0fc5b684..a10f7687 100644
--- a/arf/get_fmpq.c
+++ b/arf/get_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_fmpr.c b/arf/get_fmpr.c
index ee0a583a..5a4b0a87 100644
--- a/arf/get_fmpr.c
+++ b/arf/get_fmpr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_fmpz.c b/arf/get_fmpz.c
index db72890b..5e213dcd 100644
--- a/arf/get_fmpz.c
+++ b/arf/get_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_fmpz_2exp.c b/arf/get_fmpz_2exp.c
index bc80faab..540f8dbe 100644
--- a/arf/get_fmpz_2exp.c
+++ b/arf/get_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_integer_mpn.c b/arf/get_integer_mpn.c
index 90bab8ce..138a13b2 100644
--- a/arf/get_integer_mpn.c
+++ b/arf/get_integer_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_mag.c b/arf/get_mag.c
index cca34995..fabcbc7a 100644
--- a/arf/get_mag.c
+++ b/arf/get_mag.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_mpfr.c b/arf/get_mpfr.c
index a2462739..a69ce5b2 100644
--- a/arf/get_mpfr.c
+++ b/arf/get_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/get_si.c b/arf/get_si.c
index e6a7fccf..4c87ba7d 100644
--- a/arf/get_si.c
+++ b/arf/get_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/inlines.c b/arf/inlines.c
index cde3b055..276bad7d 100644
--- a/arf/inlines.c
+++ b/arf/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define ARF_INLINES_C
 #include "arf.h"
diff --git a/arf/is_int.c b/arf/is_int.c
index 449da467..8979149a 100644
--- a/arf/is_int.c
+++ b/arf/is_int.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/is_int_2exp_si.c b/arf/is_int_2exp_si.c
index fe7918b4..8d1c034f 100644
--- a/arf/is_int_2exp_si.c
+++ b/arf/is_int_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/memory_manager.c b/arf/memory_manager.c
index 1f648a34..6711430a 100644
--- a/arf/memory_manager.c
+++ b/arf/memory_manager.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/mul_rnd_any.c b/arf/mul_rnd_any.c
index e2538141..c203ad64 100644
--- a/arf/mul_rnd_any.c
+++ b/arf/mul_rnd_any.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/mul_rnd_down.c b/arf/mul_rnd_down.c
index 2a44b96a..731a1d54 100644
--- a/arf/mul_rnd_down.c
+++ b/arf/mul_rnd_down.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/mul_special.c b/arf/mul_special.c
index ea648fb2..44e6832d 100644
--- a/arf/mul_special.c
+++ b/arf/mul_special.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/mul_via_mpfr.c b/arf/mul_via_mpfr.c
index 66bec4c7..5e510e28 100644
--- a/arf/mul_via_mpfr.c
+++ b/arf/mul_via_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/neg_round.c b/arf/neg_round.c
index 4bae7a05..04480d41 100644
--- a/arf/neg_round.c
+++ b/arf/neg_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/randtest.c b/arf/randtest.c
index dfc780b5..2e390ef0 100644
--- a/arf/randtest.c
+++ b/arf/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/root.c b/arf/root.c
index 761414e1..f3486e09 100644
--- a/arf/root.c
+++ b/arf/root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/rsqrt.c b/arf/rsqrt.c
index 53623b7e..f6bcd867 100644
--- a/arf/rsqrt.c
+++ b/arf/rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_d.c b/arf/set_d.c
index 8f4e29d1..b287a301 100644
--- a/arf/set_d.c
+++ b/arf/set_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "arf.h"
diff --git a/arf/set_fmpr.c b/arf/set_fmpr.c
index ca4ad3b1..6fa8c6a8 100644
--- a/arf/set_fmpr.c
+++ b/arf/set_fmpr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_mpfr.c b/arf/set_mpfr.c
index 6009fd55..156d4c92 100644
--- a/arf/set_mpfr.c
+++ b/arf/set_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_mpn.c b/arf/set_mpn.c
index 5082ca72..f31cbb75 100644
--- a/arf/set_mpn.c
+++ b/arf/set_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_mpn_fixed.c b/arf/set_mpn_fixed.c
index f7ef0c9c..b167a352 100644
--- a/arf/set_mpn_fixed.c
+++ b/arf/set_mpn_fixed.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_round.c b/arf/set_round.c
index 7fee121f..d3dd86e3 100644
--- a/arf/set_round.c
+++ b/arf/set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_round_mpn.c b/arf/set_round_mpn.c
index 8e8787d9..05f84c04 100644
--- a/arf/set_round_mpn.c
+++ b/arf/set_round_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_round_ui.c b/arf/set_round_ui.c
index 63de870c..ca435e6e 100644
--- a/arf/set_round_ui.c
+++ b/arf/set_round_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/set_round_uiui.c b/arf/set_round_uiui.c
index a73e9823..0bd60f50 100644
--- a/arf/set_round_uiui.c
+++ b/arf/set_round_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/sqrt.c b/arf/sqrt.c
index 33bfa353..b2b3d306 100644
--- a/arf/sqrt.c
+++ b/arf/sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/sub.c b/arf/sub.c
index 3006abb9..ad0fb1d6 100644
--- a/arf/sub.c
+++ b/arf/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/submul.c b/arf/submul.c
index 575ede13..4e43ef73 100644
--- a/arf/submul.c
+++ b/arf/submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/sum.c b/arf/sum.c
index 4ec744a2..dcded1a7 100644
--- a/arf/sum.c
+++ b/arf/sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-abs_bound_le_2exp_fmpz.c b/arf/test/t-abs_bound_le_2exp_fmpz.c
index cbc69970..bb153f1a 100644
--- a/arf/test/t-abs_bound_le_2exp_fmpz.c
+++ b/arf/test/t-abs_bound_le_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-abs_bound_lt_2exp_fmpz.c b/arf/test/t-abs_bound_lt_2exp_fmpz.c
index 2c9f6a8e..008d65ca 100644
--- a/arf/test/t-abs_bound_lt_2exp_fmpz.c
+++ b/arf/test/t-abs_bound_lt_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-abs_bound_lt_2exp_si.c b/arf/test/t-abs_bound_lt_2exp_si.c
index 85a5e251..04137cd6 100644
--- a/arf/test/t-abs_bound_lt_2exp_si.c
+++ b/arf/test/t-abs_bound_lt_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-add.c b/arf/test/t-add.c
index 589405f6..0b6feb3c 100644
--- a/arf/test/t-add.c
+++ b/arf/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-add_fmpz.c b/arf/test/t-add_fmpz.c
index a0dc637a..df69475e 100644
--- a/arf/test/t-add_fmpz.c
+++ b/arf/test/t-add_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-add_fmpz_2exp.c b/arf/test/t-add_fmpz_2exp.c
index 23dcbfb2..8029ef29 100644
--- a/arf/test/t-add_fmpz_2exp.c
+++ b/arf/test/t-add_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-add_si.c b/arf/test/t-add_si.c
index e7656cd6..4f69adf6 100644
--- a/arf/test/t-add_si.c
+++ b/arf/test/t-add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/long_extras.h"
diff --git a/arf/test/t-add_ui.c b/arf/test/t-add_ui.c
index 0d778b17..bdb018e5 100644
--- a/arf/test/t-add_ui.c
+++ b/arf/test/t-add_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/ulong_extras.h"
diff --git a/arf/test/t-addmul.c b/arf/test/t-addmul.c
index 3fd23058..9d39141c 100644
--- a/arf/test/t-addmul.c
+++ b/arf/test/t-addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-addmul_fmpz.c b/arf/test/t-addmul_fmpz.c
index 326971bb..ecb587a1 100644
--- a/arf/test/t-addmul_fmpz.c
+++ b/arf/test/t-addmul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-addmul_si.c b/arf/test/t-addmul_si.c
index ec3287c6..160815a7 100644
--- a/arf/test/t-addmul_si.c
+++ b/arf/test/t-addmul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/long_extras.h"
diff --git a/arf/test/t-addmul_ui.c b/arf/test/t-addmul_ui.c
index 1124b3f9..ac3e53d9 100644
--- a/arf/test/t-addmul_ui.c
+++ b/arf/test/t-addmul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-ceil.c b/arf/test/t-ceil.c
index c4495a12..7ec2ed08 100644
--- a/arf/test/t-ceil.c
+++ b/arf/test/t-ceil.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-cmp.c b/arf/test/t-cmp.c
index a20edc1b..d8ab66d2 100644
--- a/arf/test/t-cmp.c
+++ b/arf/test/t-cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-cmp_2exp_si.c b/arf/test/t-cmp_2exp_si.c
index 23c0f1c9..e7a7e51e 100644
--- a/arf/test/t-cmp_2exp_si.c
+++ b/arf/test/t-cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-cmpabs.c b/arf/test/t-cmpabs.c
index 345b5f13..512754e0 100644
--- a/arf/test/t-cmpabs.c
+++ b/arf/test/t-cmpabs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-cmpabs_2exp_si.c b/arf/test/t-cmpabs_2exp_si.c
index 4356cbbb..aa805db0 100644
--- a/arf/test/t-cmpabs_2exp_si.c
+++ b/arf/test/t-cmpabs_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-complex_mul.c b/arf/test/t-complex_mul.c
index 7398a05f..9897b79c 100644
--- a/arf/test/t-complex_mul.c
+++ b/arf/test/t-complex_mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-complex_sqr.c b/arf/test/t-complex_sqr.c
index 6d2f94e5..6fc36530 100644
--- a/arf/test/t-complex_sqr.c
+++ b/arf/test/t-complex_sqr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-div.c b/arf/test/t-div.c
index 7850f2d0..39574e30 100644
--- a/arf/test/t-div.c
+++ b/arf/test/t-div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-floor.c b/arf/test/t-floor.c
index e424a2d8..7ebfba2a 100644
--- a/arf/test/t-floor.c
+++ b/arf/test/t-floor.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-get_d.c b/arf/test/t-get_d.c
index c233ffe8..d4d232fe 100644
--- a/arf/test/t-get_d.c
+++ b/arf/test/t-get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-get_fmpz.c b/arf/test/t-get_fmpz.c
index 1f465310..b7edeb22 100644
--- a/arf/test/t-get_fmpz.c
+++ b/arf/test/t-get_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-get_mpfr.c b/arf/test/t-get_mpfr.c
index 60d416da..dad66dd5 100644
--- a/arf/test/t-get_mpfr.c
+++ b/arf/test/t-get_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-is_int_2exp_si.c b/arf/test/t-is_int_2exp_si.c
index 14d0e9b5..ab283647 100644
--- a/arf/test/t-is_int_2exp_si.c
+++ b/arf/test/t-is_int_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-mul.c b/arf/test/t-mul.c
index 25f40ed8..d9c01392 100644
--- a/arf/test/t-mul.c
+++ b/arf/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-mul_fmpz.c b/arf/test/t-mul_fmpz.c
index 49b8eeaa..d9bd4d83 100644
--- a/arf/test/t-mul_fmpz.c
+++ b/arf/test/t-mul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-mul_si.c b/arf/test/t-mul_si.c
index d4056c27..e1b0874b 100644
--- a/arf/test/t-mul_si.c
+++ b/arf/test/t-mul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/long_extras.h"
diff --git a/arf/test/t-mul_ui.c b/arf/test/t-mul_ui.c
index c65db963..1e54f35d 100644
--- a/arf/test/t-mul_ui.c
+++ b/arf/test/t-mul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/ulong_extras.h"
diff --git a/arf/test/t-mul_via_mpfr.c b/arf/test/t-mul_via_mpfr.c
index 9d2182b6..7fc76fbd 100644
--- a/arf/test/t-mul_via_mpfr.c
+++ b/arf/test/t-mul_via_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-neg_round.c b/arf/test/t-neg_round.c
index 1204aee7..a57d75e0 100644
--- a/arf/test/t-neg_round.c
+++ b/arf/test/t-neg_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-root.c b/arf/test/t-root.c
index fc67aa7c..0786f089 100644
--- a/arf/test/t-root.c
+++ b/arf/test/t-root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-rsqrt.c b/arf/test/t-rsqrt.c
index 8701b70b..515b03a6 100644
--- a/arf/test/t-rsqrt.c
+++ b/arf/test/t-rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_fmpq.c b/arf/test/t-set_fmpq.c
index fe9312cc..1f21689d 100644
--- a/arf/test/t-set_fmpq.c
+++ b/arf/test/t-set_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_fmpr.c b/arf/test/t-set_fmpr.c
index 4c2a647a..cece7ad8 100644
--- a/arf/test/t-set_fmpr.c
+++ b/arf/test/t-set_fmpr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_fmpz_2exp.c b/arf/test/t-set_fmpz_2exp.c
index 7a45175f..bbdb4dea 100644
--- a/arf/test/t-set_fmpz_2exp.c
+++ b/arf/test/t-set_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_round.c b/arf/test/t-set_round.c
index 63755f2a..23eaa345 100644
--- a/arf/test/t-set_round.c
+++ b/arf/test/t-set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_round_fmpz.c b/arf/test/t-set_round_fmpz.c
index 13619aa8..a8fd4b3d 100644
--- a/arf/test/t-set_round_fmpz.c
+++ b/arf/test/t-set_round_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_round_mpz.c b/arf/test/t-set_round_mpz.c
index 628d1f10..a78f47c3 100644
--- a/arf/test/t-set_round_mpz.c
+++ b/arf/test/t-set_round_mpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-set_round_uiui.c b/arf/test/t-set_round_uiui.c
index 310b25bd..c2a2e4cd 100644
--- a/arf/test/t-set_round_uiui.c
+++ b/arf/test/t-set_round_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-sqrt.c b/arf/test/t-sqrt.c
index 82859486..b6c0845e 100644
--- a/arf/test/t-sqrt.c
+++ b/arf/test/t-sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-sub.c b/arf/test/t-sub.c
index 4c5f3bb2..e9ab8572 100644
--- a/arf/test/t-sub.c
+++ b/arf/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-sub_fmpz.c b/arf/test/t-sub_fmpz.c
index 9ff54ea7..4bb0acd5 100644
--- a/arf/test/t-sub_fmpz.c
+++ b/arf/test/t-sub_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-sub_si.c b/arf/test/t-sub_si.c
index f5cd4cb2..9db6e6f4 100644
--- a/arf/test/t-sub_si.c
+++ b/arf/test/t-sub_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/long_extras.h"
diff --git a/arf/test/t-sub_ui.c b/arf/test/t-sub_ui.c
index 024dd5d9..89f65538 100644
--- a/arf/test/t-sub_ui.c
+++ b/arf/test/t-sub_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/ulong_extras.h"
diff --git a/arf/test/t-submul.c b/arf/test/t-submul.c
index 8e80e94c..e442086d 100644
--- a/arf/test/t-submul.c
+++ b/arf/test/t-submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-submul_fmpz.c b/arf/test/t-submul_fmpz.c
index f588e661..b13debdf 100644
--- a/arf/test/t-submul_fmpz.c
+++ b/arf/test/t-submul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-submul_si.c b/arf/test/t-submul_si.c
index 1833dc1d..3bafda7c 100644
--- a/arf/test/t-submul_si.c
+++ b/arf/test/t-submul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 #include "flint/long_extras.h"
diff --git a/arf/test/t-submul_ui.c b/arf/test/t-submul_ui.c
index 2e7182bf..0722a17b 100644
--- a/arf/test/t-submul_ui.c
+++ b/arf/test/t-submul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/arf/test/t-sum.c b/arf/test/t-sum.c
index 4e8cb63d..b395f23b 100644
--- a/arf/test/t-sum.c
+++ b/arf/test/t-sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "arf.h"
 
diff --git a/bernoulli.h b/bernoulli.h
index 48d54bf2..536c1558 100644
--- a/bernoulli.h
+++ b/bernoulli.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef BERNOULLI_H
 #define BERNOULLI_H
diff --git a/bernoulli/bound_2exp_si.c b/bernoulli/bound_2exp_si.c
index ebc03d6a..176c431b 100644
--- a/bernoulli/bound_2exp_si.c
+++ b/bernoulli/bound_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/cache_compute.c b/bernoulli/cache_compute.c
index 0107304d..2ffa9341 100644
--- a/bernoulli/cache_compute.c
+++ b/bernoulli/cache_compute.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/fmpq_ui.c b/bernoulli/fmpq_ui.c
index 123034c8..1fb8f9a2 100644
--- a/bernoulli/fmpq_ui.c
+++ b/bernoulli/fmpq_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/fmpq_ui_zeta.c b/bernoulli/fmpq_ui_zeta.c
index 30c0e80d..1a128b2c 100644
--- a/bernoulli/fmpq_ui_zeta.c
+++ b/bernoulli/fmpq_ui_zeta.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 #include "arb.h"
diff --git a/bernoulli/rev_clear.c b/bernoulli/rev_clear.c
index d7dd838b..cea77f25 100644
--- a/bernoulli/rev_clear.c
+++ b/bernoulli/rev_clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/rev_init.c b/bernoulli/rev_init.c
index e0c42c93..9921b978 100644
--- a/bernoulli/rev_init.c
+++ b/bernoulli/rev_init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/rev_next.c b/bernoulli/rev_next.c
index f4c609ef..68be214e 100644
--- a/bernoulli/rev_next.c
+++ b/bernoulli/rev_next.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bernoulli.h"
 
diff --git a/bernoulli/test/t-bound_2exp_si.c b/bernoulli/test/t-bound_2exp_si.c
index ac4f2b18..9f49458f 100644
--- a/bernoulli/test/t-bound_2exp_si.c
+++ b/bernoulli/test/t-bound_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/bernoulli/test/t-fmpq_ui.c b/bernoulli/test/t-fmpq_ui.c
index 37cfa7ee..e18efe93 100644
--- a/bernoulli/test/t-fmpq_ui.c
+++ b/bernoulli/test/t-fmpq_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of FLINT.
-
-    FLINT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    FLINT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/bernoulli/test/t-rev.c b/bernoulli/test/t-rev.c
index f9d8f3d2..502fe4aa 100644
--- a/bernoulli/test/t-rev.c
+++ b/bernoulli/test/t-rev.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/bool_mat.h b/bool_mat.h
index 0bdaf3b2..909f84f0 100644
--- a/bool_mat.h
+++ b/bool_mat.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef BOOL_MAT_H
 #define BOOL_MAT_H
diff --git a/bool_mat/add.c b/bool_mat/add.c
index 51f9112c..7036d89c 100644
--- a/bool_mat/add.c
+++ b/bool_mat/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/all.c b/bool_mat/all.c
index d1bc8e36..161bdb9d 100644
--- a/bool_mat/all.c
+++ b/bool_mat/all.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/all_pairs_longest_walk.c b/bool_mat/all_pairs_longest_walk.c
index cbaf4a70..89a5dfbc 100644
--- a/bool_mat/all_pairs_longest_walk.c
+++ b/bool_mat/all_pairs_longest_walk.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/any.c b/bool_mat/any.c
index 2fd17836..0fc3fdd2 100644
--- a/bool_mat/any.c
+++ b/bool_mat/any.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/clear.c b/bool_mat/clear.c
index 2e0dc389..60191d52 100644
--- a/bool_mat/clear.c
+++ b/bool_mat/clear.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/complement.c b/bool_mat/complement.c
index a811befd..3158ba79 100644
--- a/bool_mat/complement.c
+++ b/bool_mat/complement.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/directed_cycle.c b/bool_mat/directed_cycle.c
index 87ce24aa..eb78d394 100644
--- a/bool_mat/directed_cycle.c
+++ b/bool_mat/directed_cycle.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/directed_path.c b/bool_mat/directed_path.c
index 5cf39de8..0dc8b980 100644
--- a/bool_mat/directed_path.c
+++ b/bool_mat/directed_path.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/equal.c b/bool_mat/equal.c
index 26e67858..3902f9fb 100644
--- a/bool_mat/equal.c
+++ b/bool_mat/equal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/fprint.c b/bool_mat/fprint.c
index 2cebd934..91c5b020 100644
--- a/bool_mat/fprint.c
+++ b/bool_mat/fprint.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/get_strongly_connected_components.c b/bool_mat/get_strongly_connected_components.c
index d7d44a74..c8220b35 100644
--- a/bool_mat/get_strongly_connected_components.c
+++ b/bool_mat/get_strongly_connected_components.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/init.c b/bool_mat/init.c
index 8a39e51a..541c5a7c 100644
--- a/bool_mat/init.c
+++ b/bool_mat/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/is_diagonal.c b/bool_mat/is_diagonal.c
index a9fa974e..4d208d9b 100644
--- a/bool_mat/is_diagonal.c
+++ b/bool_mat/is_diagonal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/is_lower_triangular.c b/bool_mat/is_lower_triangular.c
index b341fd3b..df9e2fb3 100644
--- a/bool_mat/is_lower_triangular.c
+++ b/bool_mat/is_lower_triangular.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of FLINT.
-
-    FLINT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    FLINT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/is_nilpotent.c b/bool_mat/is_nilpotent.c
index 241c8cbb..42310265 100644
--- a/bool_mat/is_nilpotent.c
+++ b/bool_mat/is_nilpotent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/is_transitive.c b/bool_mat/is_transitive.c
index d3e0df0a..09747d06 100644
--- a/bool_mat/is_transitive.c
+++ b/bool_mat/is_transitive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/mul.c b/bool_mat/mul.c
index 20b44936..dd7fafe5 100644
--- a/bool_mat/mul.c
+++ b/bool_mat/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/mul_entrywise.c b/bool_mat/mul_entrywise.c
index a9a30400..bc94e4a2 100644
--- a/bool_mat/mul_entrywise.c
+++ b/bool_mat/mul_entrywise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/nilpotency_degree.c b/bool_mat/nilpotency_degree.c
index 86ca7266..86da6755 100644
--- a/bool_mat/nilpotency_degree.c
+++ b/bool_mat/nilpotency_degree.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/fmpz_mat.h"
 #include "bool_mat.h"
diff --git a/bool_mat/one.c b/bool_mat/one.c
index a42aa1e9..c044ce22 100644
--- a/bool_mat/one.c
+++ b/bool_mat/one.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/pow_ui.c b/bool_mat/pow_ui.c
index 0a32c80f..c4dd4f5a 100644
--- a/bool_mat/pow_ui.c
+++ b/bool_mat/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/randtest.c b/bool_mat/randtest.c
index 46808af2..f538af11 100644
--- a/bool_mat/randtest.c
+++ b/bool_mat/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/perm.h"
 #include "bool_mat.h"
diff --git a/bool_mat/set.c b/bool_mat/set.c
index a2ec547f..409c1474 100644
--- a/bool_mat/set.c
+++ b/bool_mat/set.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-all_pairs_longest_walk.c b/bool_mat/test/t-all_pairs_longest_walk.c
index 7bd484fb..b50e9c9e 100644
--- a/bool_mat/test/t-all_pairs_longest_walk.c
+++ b/bool_mat/test/t-all_pairs_longest_walk.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 #include "flint/perm.h"
diff --git a/bool_mat/test/t-complement.c b/bool_mat/test/t-complement.c
index ec651803..9df22572 100644
--- a/bool_mat/test/t-complement.c
+++ b/bool_mat/test/t-complement.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-is_diagonal.c b/bool_mat/test/t-is_diagonal.c
index 8c228eee..14e0495c 100644
--- a/bool_mat/test/t-is_diagonal.c
+++ b/bool_mat/test/t-is_diagonal.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-is_nilpotent.c b/bool_mat/test/t-is_nilpotent.c
index 9140b2a4..b193c37f 100644
--- a/bool_mat/test/t-is_nilpotent.c
+++ b/bool_mat/test/t-is_nilpotent.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-is_transitive.c b/bool_mat/test/t-is_transitive.c
index 11a71c19..47117483 100644
--- a/bool_mat/test/t-is_transitive.c
+++ b/bool_mat/test/t-is_transitive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-mul.c b/bool_mat/test/t-mul.c
index 9a54a5c6..dd2f7309 100644
--- a/bool_mat/test/t-mul.c
+++ b/bool_mat/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-nilpotency_degree.c b/bool_mat/test/t-nilpotency_degree.c
index 568d4e0a..05b0cad9 100644
--- a/bool_mat/test/t-nilpotency_degree.c
+++ b/bool_mat/test/t-nilpotency_degree.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-trace.c b/bool_mat/test/t-trace.c
index fc729ebb..08f0e800 100644
--- a/bool_mat/test/t-trace.c
+++ b/bool_mat/test/t-trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/test/t-transitive_closure.c b/bool_mat/test/t-transitive_closure.c
index e82f40a1..2c4be73a 100644
--- a/bool_mat/test/t-transitive_closure.c
+++ b/bool_mat/test/t-transitive_closure.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 #include "flint/perm.h"
diff --git a/bool_mat/test/t-transpose.c b/bool_mat/test/t-transpose.c
index e9d3dc71..df7f40ca 100644
--- a/bool_mat/test/t-transpose.c
+++ b/bool_mat/test/t-transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/trace.c b/bool_mat/trace.c
index 8d06bdfa..5c1f3127 100644
--- a/bool_mat/trace.c
+++ b/bool_mat/trace.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/transitive_closure.c b/bool_mat/transitive_closure.c
index c1877399..f0508a78 100644
--- a/bool_mat/transitive_closure.c
+++ b/bool_mat/transitive_closure.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/transpose.c b/bool_mat/transpose.c
index 00ce49b0..3f27808e 100644
--- a/bool_mat/transpose.c
+++ b/bool_mat/transpose.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/bool_mat/zero.c b/bool_mat/zero.c
index 5a2a97bc..96232e83 100644
--- a/bool_mat/zero.c
+++ b/bool_mat/zero.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "bool_mat.h"
 
diff --git a/fmpr.h b/fmpr.h
index a3293f50..9a444287 100644
--- a/fmpr.h
+++ b/fmpr.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef FMPR_H
 #define FMPR_H
diff --git a/fmpr/abs_bound_lt_2exp_si.c b/fmpr/abs_bound_lt_2exp_si.c
index bf5ce0b1..86912e4e 100644
--- a/fmpr/abs_bound_lt_2exp_si.c
+++ b/fmpr/abs_bound_lt_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add.c b/fmpr/add.c
index 67609d8d..087e2d3d 100644
--- a/fmpr/add.c
+++ b/fmpr/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_eps.c b/fmpr/add_eps.c
index 907cd878..68d5e393 100644
--- a/fmpr/add_eps.c
+++ b/fmpr/add_eps.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_fmpz.c b/fmpr/add_fmpz.c
index 3b700876..3fdfa0da 100644
--- a/fmpr/add_fmpz.c
+++ b/fmpr/add_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_mpn.c b/fmpr/add_mpn.c
index 5d1e1cdc..218b9751 100644
--- a/fmpr/add_mpn.c
+++ b/fmpr/add_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_naive.c b/fmpr/add_naive.c
index fbda8f2b..f54943b7 100644
--- a/fmpr/add_naive.c
+++ b/fmpr/add_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_si.c b/fmpr/add_si.c
index c17fc5d9..e4b7e27b 100644
--- a/fmpr/add_si.c
+++ b/fmpr/add_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/add_ui.c b/fmpr/add_ui.c
index d8c3c6ff..1cc67edc 100644
--- a/fmpr/add_ui.c
+++ b/fmpr/add_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/addmul.c b/fmpr/addmul.c
index 233bd363..3e4b3821 100644
--- a/fmpr/addmul.c
+++ b/fmpr/addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/check_ulp.c b/fmpr/check_ulp.c
index dc9b280d..71941bc8 100644
--- a/fmpr/check_ulp.c
+++ b/fmpr/check_ulp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/cmp.c b/fmpr/cmp.c
index 9609180b..5b02b009 100644
--- a/fmpr/cmp.c
+++ b/fmpr/cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/cmp_2exp_si.c b/fmpr/cmp_2exp_si.c
index 6e3d4bc9..fd9696f6 100644
--- a/fmpr/cmp_2exp_si.c
+++ b/fmpr/cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/cmpabs.c b/fmpr/cmpabs.c
index 384dc2a7..6efb16d1 100644
--- a/fmpr/cmpabs.c
+++ b/fmpr/cmpabs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/cmpabs_2exp_si.c b/fmpr/cmpabs_2exp_si.c
index ffb35539..a3abed2e 100644
--- a/fmpr/cmpabs_2exp_si.c
+++ b/fmpr/cmpabs_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/cmpabs_ui.c b/fmpr/cmpabs_ui.c
index e36f898e..aaae8513 100644
--- a/fmpr/cmpabs_ui.c
+++ b/fmpr/cmpabs_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/div.c b/fmpr/div.c
index 0bf2b57d..d9c321ad 100644
--- a/fmpr/div.c
+++ b/fmpr/div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/divappr_abs_ubound.c b/fmpr/divappr_abs_ubound.c
index 3169aa2e..c893bc6b 100644
--- a/fmpr/divappr_abs_ubound.c
+++ b/fmpr/divappr_abs_ubound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/exp.c b/fmpr/exp.c
index 18a1e9ba..379aad18 100644
--- a/fmpr/exp.c
+++ b/fmpr/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_d.c b/fmpr/get_d.c
index 5429c8f6..98ae4cd2 100644
--- a/fmpr/get_d.c
+++ b/fmpr/get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_fmpq.c b/fmpr/get_fmpq.c
index d78ae47b..5588d910 100644
--- a/fmpr/get_fmpq.c
+++ b/fmpr/get_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_fmpz.c b/fmpr/get_fmpz.c
index 9dd5d0bd..a6acefa6 100644
--- a/fmpr/get_fmpz.c
+++ b/fmpr/get_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_fmpz_2exp.c b/fmpr/get_fmpz_2exp.c
index 4910b5df..ebfecfd2 100644
--- a/fmpr/get_fmpz_2exp.c
+++ b/fmpr/get_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_fmpz_fixed.c b/fmpr/get_fmpz_fixed.c
index 0df2dbd3..ad6ea731 100644
--- a/fmpr/get_fmpz_fixed.c
+++ b/fmpr/get_fmpz_fixed.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_mpfr.c b/fmpr/get_mpfr.c
index 5eb06a10..60147548 100644
--- a/fmpr/get_mpfr.c
+++ b/fmpr/get_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/get_si.c b/fmpr/get_si.c
index 29b11519..137d757a 100644
--- a/fmpr/get_si.c
+++ b/fmpr/get_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/log.c b/fmpr/log.c
index 086f6f32..04d7b6ab 100644
--- a/fmpr/log.c
+++ b/fmpr/log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/mul.c b/fmpr/mul.c
index 3d47aabe..77ec8140 100644
--- a/fmpr/mul.c
+++ b/fmpr/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/mul_1x1.c b/fmpr/mul_1x1.c
index 894e9aa4..3d946f67 100644
--- a/fmpr/mul_1x1.c
+++ b/fmpr/mul_1x1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/mul_fmpz.c b/fmpr/mul_fmpz.c
index e646c63c..63540929 100644
--- a/fmpr/mul_fmpz.c
+++ b/fmpr/mul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/mul_mpn.c b/fmpr/mul_mpn.c
index 28e9a382..b0b8cab4 100644
--- a/fmpr/mul_mpn.c
+++ b/fmpr/mul_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/mul_naive.c b/fmpr/mul_naive.c
index db06f4ff..49ce9722 100644
--- a/fmpr/mul_naive.c
+++ b/fmpr/mul_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/normalise.c b/fmpr/normalise.c
index 8e5c45b7..0a2b2189 100644
--- a/fmpr/normalise.c
+++ b/fmpr/normalise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/pow_sloppy.c b/fmpr/pow_sloppy.c
index edfdf167..59dc193f 100644
--- a/fmpr/pow_sloppy.c
+++ b/fmpr/pow_sloppy.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/print.c b/fmpr/print.c
index be1c98fa..031eea52 100644
--- a/fmpr/print.c
+++ b/fmpr/print.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/printd.c b/fmpr/printd.c
index c11badda..e5f47732 100644
--- a/fmpr/printd.c
+++ b/fmpr/printd.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/randtest.c b/fmpr/randtest.c
index 95e84948..a6ba2fe7 100644
--- a/fmpr/randtest.c
+++ b/fmpr/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/root.c b/fmpr/root.c
index f5bcc5ec..7f755fce 100644
--- a/fmpr/root.c
+++ b/fmpr/root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/rsqrt.c b/fmpr/rsqrt.c
index 447b77a6..c5ee036b 100644
--- a/fmpr/rsqrt.c
+++ b/fmpr/rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_d.c b/fmpr/set_d.c
index 6815d545..ec1e1417 100644
--- a/fmpr/set_d.c
+++ b/fmpr/set_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_fmpq.c b/fmpr/set_fmpq.c
index 83c62609..7969ef14 100644
--- a/fmpr/set_fmpq.c
+++ b/fmpr/set_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_fmpz_2exp.c b/fmpr/set_fmpz_2exp.c
index 96accfdc..613e725f 100644
--- a/fmpr/set_fmpz_2exp.c
+++ b/fmpr/set_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_mpfr.c b/fmpr/set_mpfr.c
index ae4e9428..28c75cc0 100644
--- a/fmpr/set_mpfr.c
+++ b/fmpr/set_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_round.c b/fmpr/set_round.c
index 346dc170..36f4f4f7 100644
--- a/fmpr/set_round.c
+++ b/fmpr/set_round.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_round_mpn.c b/fmpr/set_round_mpn.c
index 0a50c738..907ef8cc 100644
--- a/fmpr/set_round_mpn.c
+++ b/fmpr/set_round_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_round_ui_2exp_fmpz.c b/fmpr/set_round_ui_2exp_fmpz.c
index 6cf406d2..9a9baebd 100644
--- a/fmpr/set_round_ui_2exp_fmpz.c
+++ b/fmpr/set_round_ui_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/set_round_uiui_2exp_fmpz.c b/fmpr/set_round_uiui_2exp_fmpz.c
index e0583842..dbc4d4ff 100644
--- a/fmpr/set_round_uiui_2exp_fmpz.c
+++ b/fmpr/set_round_uiui_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/sqrt.c b/fmpr/sqrt.c
index cbf76f0f..4b8e73a6 100644
--- a/fmpr/sqrt.c
+++ b/fmpr/sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/sub.c b/fmpr/sub.c
index 82d6a5e9..272eebbb 100644
--- a/fmpr/sub.c
+++ b/fmpr/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/submul.c b/fmpr/submul.c
index b4d24e51..12242a3d 100644
--- a/fmpr/submul.c
+++ b/fmpr/submul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/sum.c b/fmpr/sum.c
index 919f66a3..9807e205 100644
--- a/fmpr/sum.c
+++ b/fmpr/sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-abs_bound_le_2exp_fmpz.c b/fmpr/test/t-abs_bound_le_2exp_fmpz.c
index c0868d9b..3298ca3a 100644
--- a/fmpr/test/t-abs_bound_le_2exp_fmpz.c
+++ b/fmpr/test/t-abs_bound_le_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-abs_bound_lt_2exp_fmpz.c b/fmpr/test/t-abs_bound_lt_2exp_fmpz.c
index 39706c60..3751f547 100644
--- a/fmpr/test/t-abs_bound_lt_2exp_fmpz.c
+++ b/fmpr/test/t-abs_bound_lt_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-abs_bound_lt_2exp_si.c b/fmpr/test/t-abs_bound_lt_2exp_si.c
index 915e2fb4..3cf48c13 100644
--- a/fmpr/test/t-abs_bound_lt_2exp_si.c
+++ b/fmpr/test/t-abs_bound_lt_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-add.c b/fmpr/test/t-add.c
index b5caa16e..15c20214 100644
--- a/fmpr/test/t-add.c
+++ b/fmpr/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-add_naive.c b/fmpr/test/t-add_naive.c
index 8d38ff66..9fd0e7d2 100644
--- a/fmpr/test/t-add_naive.c
+++ b/fmpr/test/t-add_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-cmp.c b/fmpr/test/t-cmp.c
index 46391446..f73b1e83 100644
--- a/fmpr/test/t-cmp.c
+++ b/fmpr/test/t-cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-cmp_2exp_si.c b/fmpr/test/t-cmp_2exp_si.c
index d5472a9f..a5d75787 100644
--- a/fmpr/test/t-cmp_2exp_si.c
+++ b/fmpr/test/t-cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-cmpabs.c b/fmpr/test/t-cmpabs.c
index 10f03774..991173a5 100644
--- a/fmpr/test/t-cmpabs.c
+++ b/fmpr/test/t-cmpabs.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-cmpabs_2exp_si.c b/fmpr/test/t-cmpabs_2exp_si.c
index d5b872bd..84c486c6 100644
--- a/fmpr/test/t-cmpabs_2exp_si.c
+++ b/fmpr/test/t-cmpabs_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-div.c b/fmpr/test/t-div.c
index 11bc656c..ff0dcd05 100644
--- a/fmpr/test/t-div.c
+++ b/fmpr/test/t-div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-divappr_abs_ubound.c b/fmpr/test/t-divappr_abs_ubound.c
index d101fb23..e00c9723 100644
--- a/fmpr/test/t-divappr_abs_ubound.c
+++ b/fmpr/test/t-divappr_abs_ubound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-exp.c b/fmpr/test/t-exp.c
index 8ae06f9f..2b04d9f7 100644
--- a/fmpr/test/t-exp.c
+++ b/fmpr/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-expm1.c b/fmpr/test/t-expm1.c
index 25f5b8b7..692f8d11 100644
--- a/fmpr/test/t-expm1.c
+++ b/fmpr/test/t-expm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-get_d.c b/fmpr/test/t-get_d.c
index dd5a9253..3d7d174e 100644
--- a/fmpr/test/t-get_d.c
+++ b/fmpr/test/t-get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-get_fmpz.c b/fmpr/test/t-get_fmpz.c
index 0459e39a..dc6cee2a 100644
--- a/fmpr/test/t-get_fmpz.c
+++ b/fmpr/test/t-get_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-get_mpfr.c b/fmpr/test/t-get_mpfr.c
index 9c5654e3..7481166b 100644
--- a/fmpr/test/t-get_mpfr.c
+++ b/fmpr/test/t-get_mpfr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-log.c b/fmpr/test/t-log.c
index b93f96cb..7645fa30 100644
--- a/fmpr/test/t-log.c
+++ b/fmpr/test/t-log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-log1p.c b/fmpr/test/t-log1p.c
index a1fdb6a5..49de0cc3 100644
--- a/fmpr/test/t-log1p.c
+++ b/fmpr/test/t-log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-mul.c b/fmpr/test/t-mul.c
index ac3ce6e5..f032663b 100644
--- a/fmpr/test/t-mul.c
+++ b/fmpr/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-mul_fmpz.c b/fmpr/test/t-mul_fmpz.c
index 21b62647..75c362be 100644
--- a/fmpr/test/t-mul_fmpz.c
+++ b/fmpr/test/t-mul_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-mul_naive.c b/fmpr/test/t-mul_naive.c
index 45445d1b..ed9f5865 100644
--- a/fmpr/test/t-mul_naive.c
+++ b/fmpr/test/t-mul_naive.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-mul_si.c b/fmpr/test/t-mul_si.c
index 8c228e48..cd03f978 100644
--- a/fmpr/test/t-mul_si.c
+++ b/fmpr/test/t-mul_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/long_extras.h"
 #include "fmpr.h"
diff --git a/fmpr/test/t-mul_ui.c b/fmpr/test/t-mul_ui.c
index dc1be9ee..b9e57355 100644
--- a/fmpr/test/t-mul_ui.c
+++ b/fmpr/test/t-mul_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/ulong_extras.h"
 #include "fmpr.h"
diff --git a/fmpr/test/t-normalise.c b/fmpr/test/t-normalise.c
index 0d60caaa..8872900c 100644
--- a/fmpr/test/t-normalise.c
+++ b/fmpr/test/t-normalise.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-root.c b/fmpr/test/t-root.c
index ae5b6338..eed8d2a3 100644
--- a/fmpr/test/t-root.c
+++ b/fmpr/test/t-root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012, 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-rsqrt.c b/fmpr/test/t-rsqrt.c
index f69d63ac..01c60387 100644
--- a/fmpr/test/t-rsqrt.c
+++ b/fmpr/test/t-rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-set_fmpq.c b/fmpr/test/t-set_fmpq.c
index 5470d9b2..4ef57969 100644
--- a/fmpr/test/t-set_fmpq.c
+++ b/fmpr/test/t-set_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-set_fmpz_2exp.c b/fmpr/test/t-set_fmpz_2exp.c
index 390cd4b3..9c42426c 100644
--- a/fmpr/test/t-set_fmpz_2exp.c
+++ b/fmpr/test/t-set_fmpz_2exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-set_round_mpn.c b/fmpr/test/t-set_round_mpn.c
index 85fe98a2..89faf012 100644
--- a/fmpr/test/t-set_round_mpn.c
+++ b/fmpr/test/t-set_round_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-set_round_ui_2exp_fmpz.c b/fmpr/test/t-set_round_ui_2exp_fmpz.c
index 8d2af1fa..37f96d53 100644
--- a/fmpr/test/t-set_round_ui_2exp_fmpz.c
+++ b/fmpr/test/t-set_round_ui_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-set_round_uiui_2exp_fmpz.c b/fmpr/test/t-set_round_uiui_2exp_fmpz.c
index 2ad945f4..e1a29315 100644
--- a/fmpr/test/t-set_round_uiui_2exp_fmpz.c
+++ b/fmpr/test/t-set_round_uiui_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-sqrt.c b/fmpr/test/t-sqrt.c
index 45396976..3210776b 100644
--- a/fmpr/test/t-sqrt.c
+++ b/fmpr/test/t-sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-sub.c b/fmpr/test/t-sub.c
index 07f1edf4..e9895019 100644
--- a/fmpr/test/t-sub.c
+++ b/fmpr/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-sum.c b/fmpr/test/t-sum.c
index 6a925cfa..15b0eac3 100644
--- a/fmpr/test/t-sum.c
+++ b/fmpr/test/t-sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/test/t-ulp.c b/fmpr/test/t-ulp.c
index 9387bca3..7a86e53a 100644
--- a/fmpr/test/t-ulp.c
+++ b/fmpr/test/t-ulp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpr/ulp.c b/fmpr/ulp.c
index 744ce444..51385f23 100644
--- a/fmpr/ulp.c
+++ b/fmpr/ulp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpr.h"
 
diff --git a/fmpz_extras.h b/fmpz_extras.h
index c7547d8f..943c8b4f 100644
--- a/fmpz_extras.h
+++ b/fmpz_extras.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef FMPZ_EXTRAS_H
 #define FMPZ_EXTRAS_H
diff --git a/fmpz_extras/lshift_mpn.c b/fmpz_extras/lshift_mpn.c
index 2571fa2a..1f7a7ba2 100644
--- a/fmpz_extras/lshift_mpn.c
+++ b/fmpz_extras/lshift_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/sub_small_large.c b/fmpz_extras/sub_small_large.c
index cc6ad112..4341fbd3 100644
--- a/fmpz_extras/sub_small_large.c
+++ b/fmpz_extras/sub_small_large.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-add2_fmpz_si_inline.c b/fmpz_extras/test/t-add2_fmpz_si_inline.c
index a90fe395..241b5358 100644
--- a/fmpz_extras/test/t-add2_fmpz_si_inline.c
+++ b/fmpz_extras/test/t-add2_fmpz_si_inline.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-add_inline.c b/fmpz_extras/test/t-add_inline.c
index 3800a1d2..771bcd32 100644
--- a/fmpz_extras/test/t-add_inline.c
+++ b/fmpz_extras/test/t-add_inline.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-add_si_inline.c b/fmpz_extras/test/t-add_si_inline.c
index 5d59949b..25848b1c 100644
--- a/fmpz_extras/test/t-add_si_inline.c
+++ b/fmpz_extras/test/t-add_si_inline.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-add_ui_inline.c b/fmpz_extras/test/t-add_ui_inline.c
index 01da2b30..ac2f4806 100644
--- a/fmpz_extras/test/t-add_ui_inline.c
+++ b/fmpz_extras/test/t-add_ui_inline.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-lshift_mpn.c b/fmpz_extras/test/t-lshift_mpn.c
index 65084b50..5b8b4aba 100644
--- a/fmpz_extras/test/t-lshift_mpn.c
+++ b/fmpz_extras/test/t-lshift_mpn.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/fmpz_extras/test/t-sub_si_inline.c b/fmpz_extras/test/t-sub_si_inline.c
index c728cf62..dc0da83c 100644
--- a/fmpz_extras/test/t-sub_si_inline.c
+++ b/fmpz_extras/test/t-sub_si_inline.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "fmpz_extras.h"
 
diff --git a/hypgeom.h b/hypgeom.h
index e12fee54..61446c46 100644
--- a/hypgeom.h
+++ b/hypgeom.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef HYPGEOM_H
 #define HYPGEOM_H
diff --git a/hypgeom/bound.c b/hypgeom/bound.c
index f4c46e5e..8a85baac 100644
--- a/hypgeom/bound.c
+++ b/hypgeom/bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "flint/double_extras.h"
diff --git a/hypgeom/estimate_terms_d.c b/hypgeom/estimate_terms_d.c
index 82ded13b..7a05b3bf 100644
--- a/hypgeom/estimate_terms_d.c
+++ b/hypgeom/estimate_terms_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "flint/double_extras.h"
diff --git a/hypgeom/init.c b/hypgeom/init.c
index db637aef..bbfede93 100644
--- a/hypgeom/init.c
+++ b/hypgeom/init.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "hypgeom.h"
 
diff --git a/hypgeom/precompute.c b/hypgeom/precompute.c
index 839d8594..282703a6 100644
--- a/hypgeom/precompute.c
+++ b/hypgeom/precompute.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <math.h>
 #include "hypgeom.h"
diff --git a/hypgeom/sum.c b/hypgeom/sum.c
index 6323d3a5..0885fabf 100644
--- a/hypgeom/sum.c
+++ b/hypgeom/sum.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2012 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "hypgeom.h"
 
diff --git a/mag.h b/mag.h
index b2f913a4..41d41d1e 100644
--- a/mag.h
+++ b/mag.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef MAG_H
 #define MAG_H
diff --git a/mag/add.c b/mag/add.c
index 50be867c..24ec0d9a 100644
--- a/mag/add.c
+++ b/mag/add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/add_2exp_fmpz.c b/mag/add_2exp_fmpz.c
index acf74138..f0733131 100644
--- a/mag/add_2exp_fmpz.c
+++ b/mag/add_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/add_ui.c b/mag/add_ui.c
index d7104fee..449b04b3 100644
--- a/mag/add_ui.c
+++ b/mag/add_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/add_ui_2exp_si.c b/mag/add_ui_2exp_si.c
index 5a6bf17e..3058b365 100644
--- a/mag/add_ui_2exp_si.c
+++ b/mag/add_ui_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/addmul.c b/mag/addmul.c
index 5b51a1a7..06a96de6 100644
--- a/mag/addmul.c
+++ b/mag/addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/bernoulli_div_fac_ui.c b/mag/bernoulli_div_fac_ui.c
index 880199c2..2eca7428 100644
--- a/mag/bernoulli_div_fac_ui.c
+++ b/mag/bernoulli_div_fac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/binpow_uiui.c b/mag/binpow_uiui.c
index 9f32032a..18d071c2 100644
--- a/mag/binpow_uiui.c
+++ b/mag/binpow_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/cmp.c b/mag/cmp.c
index e3adc236..a3cc53e9 100644
--- a/mag/cmp.c
+++ b/mag/cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/cmp_2exp_si.c b/mag/cmp_2exp_si.c
index f760d6a6..b2f110c1 100644
--- a/mag/cmp_2exp_si.c
+++ b/mag/cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/d_log.c b/mag/d_log.c
index c3718d46..77477948 100644
--- a/mag/d_log.c
+++ b/mag/d_log.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/div.c b/mag/div.c
index d680dd71..029d23a2 100644
--- a/mag/div.c
+++ b/mag/div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/exp.c b/mag/exp.c
index 8a246590..d49862af 100644
--- a/mag/exp.c
+++ b/mag/exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/exp_tail.c b/mag/exp_tail.c
index 95d3b71e..589619b9 100644
--- a/mag/exp_tail.c
+++ b/mag/exp_tail.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/expinv.c b/mag/expinv.c
index 96828ec2..dc1f77f5 100644
--- a/mag/expinv.c
+++ b/mag/expinv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/expm1.c b/mag/expm1.c
index 09ac1da3..86c307dd 100644
--- a/mag/expm1.c
+++ b/mag/expm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/fac_ui.c b/mag/fac_ui.c
index 932d8775..22e7e295 100644
--- a/mag/fac_ui.c
+++ b/mag/fac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/fprint.c b/mag/fprint.c
index 71f7a40c..bd99711d 100644
--- a/mag/fprint.c
+++ b/mag/fprint.c
@@ -1,28 +1,14 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
     Copyright (C) 2015 Arb authors
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arf.h"
diff --git a/mag/geom_series.c b/mag/geom_series.c
index f5f93ab3..69f347c3 100644
--- a/mag/geom_series.c
+++ b/mag/geom_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/get_d.c b/mag/get_d.c
index f11b721b..718d0cad 100644
--- a/mag/get_d.c
+++ b/mag/get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/get_fmpq.c b/mag/get_fmpq.c
index 44854a1e..b670142e 100644
--- a/mag/get_fmpq.c
+++ b/mag/get_fmpq.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arf.h"
diff --git a/mag/get_fmpr.c b/mag/get_fmpr.c
index 57cfba5a..9b253950 100644
--- a/mag/get_fmpr.c
+++ b/mag/get_fmpr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/hurwitz_zeta_uiui.c b/mag/hurwitz_zeta_uiui.c
index 963fad4e..f69c344f 100644
--- a/mag/hurwitz_zeta_uiui.c
+++ b/mag/hurwitz_zeta_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/hypot.c b/mag/hypot.c
index 6271914e..c4bc5f66 100644
--- a/mag/hypot.c
+++ b/mag/hypot.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/inlines.c b/mag/inlines.c
index f6a33eed..e1ecf909 100644
--- a/mag/inlines.c
+++ b/mag/inlines.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #define MAG_INLINES_C
 #include "mag.h"
diff --git a/mag/log1p.c b/mag/log1p.c
index 431b5def..4298fd9a 100644
--- a/mag/log1p.c
+++ b/mag/log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/log_ui.c b/mag/log_ui.c
index 9f5ef461..f9cec353 100644
--- a/mag/log_ui.c
+++ b/mag/log_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/mul.c b/mag/mul.c
index ee7c3444..2f1df9d0 100644
--- a/mag/mul.c
+++ b/mag/mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/polylog_tail.c b/mag/polylog_tail.c
index 754a77d6..980d101e 100644
--- a/mag/polylog_tail.c
+++ b/mag/polylog_tail.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/pow_fmpz.c b/mag/pow_fmpz.c
index 01665816..75b2f827 100644
--- a/mag/pow_fmpz.c
+++ b/mag/pow_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/pow_ui.c b/mag/pow_ui.c
index e63feb80..6050de4f 100644
--- a/mag/pow_ui.c
+++ b/mag/pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/randtest.c b/mag/randtest.c
index 18776a64..6ad7261d 100644
--- a/mag/randtest.c
+++ b/mag/randtest.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/root.c b/mag/root.c
index 7a085996..a085db05 100644
--- a/mag/root.c
+++ b/mag/root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/rsqrt.c b/mag/rsqrt.c
index d6a19490..623ebbe8 100644
--- a/mag/rsqrt.c
+++ b/mag/rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/set_d_2exp_fmpz.c b/mag/set_d_2exp_fmpz.c
index 8184c848..6dfe1a23 100644
--- a/mag/set_d_2exp_fmpz.c
+++ b/mag/set_d_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/set_fmpr.c b/mag/set_fmpr.c
index 012b8d8c..f43d33a8 100644
--- a/mag/set_fmpr.c
+++ b/mag/set_fmpr.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arf.h"
diff --git a/mag/set_fmpz_2exp_fmpz.c b/mag/set_fmpz_2exp_fmpz.c
index 676724c0..9e0e54ba 100644
--- a/mag/set_fmpz_2exp_fmpz.c
+++ b/mag/set_fmpz_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/set_ui.c b/mag/set_ui.c
index f0f8b608..093a5e89 100644
--- a/mag/set_ui.c
+++ b/mag/set_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/sqrt.c b/mag/sqrt.c
index 4dd1e362..4700aa7a 100644
--- a/mag/sqrt.c
+++ b/mag/sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/sub.c b/mag/sub.c
index 3c711528..0d5eaab7 100644
--- a/mag/sub.c
+++ b/mag/sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arf.h"
diff --git a/mag/sub_lower.c b/mag/sub_lower.c
index 3aff5061..baf9448c 100644
--- a/mag/sub_lower.c
+++ b/mag/sub_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arf.h"
diff --git a/mag/test/t-add.c b/mag/test/t-add.c
index be03f642..839a0f14 100644
--- a/mag/test/t-add.c
+++ b/mag/test/t-add.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-add_2exp_fmpz.c b/mag/test/t-add_2exp_fmpz.c
index d0eaf668..a6ecef6b 100644
--- a/mag/test/t-add_2exp_fmpz.c
+++ b/mag/test/t-add_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-add_lower.c b/mag/test/t-add_lower.c
index 89be59e1..c6bea09c 100644
--- a/mag/test/t-add_lower.c
+++ b/mag/test/t-add_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-addmul.c b/mag/test/t-addmul.c
index 46e68630..bae09f06 100644
--- a/mag/test/t-addmul.c
+++ b/mag/test/t-addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-binpow_uiui.c b/mag/test/t-binpow_uiui.c
index 7b4d5258..961aea7c 100644
--- a/mag/test/t-binpow_uiui.c
+++ b/mag/test/t-binpow_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-cmp.c b/mag/test/t-cmp.c
index c3824a45..5f75b885 100644
--- a/mag/test/t-cmp.c
+++ b/mag/test/t-cmp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-cmp_2exp_si.c b/mag/test/t-cmp_2exp_si.c
index 18a6648b..9ecbcca7 100644
--- a/mag/test/t-cmp_2exp_si.c
+++ b/mag/test/t-cmp_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "flint/long_extras.h"
diff --git a/mag/test/t-d_log_lower_bound.c b/mag/test/t-d_log_lower_bound.c
index f49eb7b9..a7f4ee1c 100644
--- a/mag/test/t-d_log_lower_bound.c
+++ b/mag/test/t-d_log_lower_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/test/t-d_log_upper_bound.c b/mag/test/t-d_log_upper_bound.c
index 4c786abe..be1212e0 100644
--- a/mag/test/t-d_log_upper_bound.c
+++ b/mag/test/t-d_log_upper_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/test/t-div.c b/mag/test/t-div.c
index 24a3b569..c308dafb 100644
--- a/mag/test/t-div.c
+++ b/mag/test/t-div.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-exp.c b/mag/test/t-exp.c
index b1f81ef4..917b02c3 100644
--- a/mag/test/t-exp.c
+++ b/mag/test/t-exp.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-exp_tail.c b/mag/test/t-exp_tail.c
index 59177b0b..92f45198 100644
--- a/mag/test/t-exp_tail.c
+++ b/mag/test/t-exp_tail.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-expinv.c b/mag/test/t-expinv.c
index 67bbc0ae..e3d3c77d 100644
--- a/mag/test/t-expinv.c
+++ b/mag/test/t-expinv.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-expm1.c b/mag/test/t-expm1.c
index a7129151..418a38f7 100644
--- a/mag/test/t-expm1.c
+++ b/mag/test/t-expm1.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-fac_ui.c b/mag/test/t-fac_ui.c
index dd2bd9d5..3b1f5313 100644
--- a/mag/test/t-fac_ui.c
+++ b/mag/test/t-fac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-fast_add_2exp_si.c b/mag/test/t-fast_add_2exp_si.c
index 7e0a307a..b2ac471f 100644
--- a/mag/test/t-fast_add_2exp_si.c
+++ b/mag/test/t-fast_add_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-fast_addmul.c b/mag/test/t-fast_addmul.c
index 2506a568..cd6dbbc4 100644
--- a/mag/test/t-fast_addmul.c
+++ b/mag/test/t-fast_addmul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-fast_mul.c b/mag/test/t-fast_mul.c
index 19d2e475..010a2534 100644
--- a/mag/test/t-fast_mul.c
+++ b/mag/test/t-fast_mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-fast_mul_2exp_si.c b/mag/test/t-fast_mul_2exp_si.c
index 4ee82f4d..80c2d9c7 100644
--- a/mag/test/t-fast_mul_2exp_si.c
+++ b/mag/test/t-fast_mul_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-geom_series.c b/mag/test/t-geom_series.c
index 2f37ff32..4d63761b 100644
--- a/mag/test/t-geom_series.c
+++ b/mag/test/t-geom_series.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2015 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-get_d.c b/mag/test/t-get_d.c
index 1f7f072d..fccc37f8 100644
--- a/mag/test/t-get_d.c
+++ b/mag/test/t-get_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/test/t-hurwitz_zeta_uiui.c b/mag/test/t-hurwitz_zeta_uiui.c
index 82be63ff..b3d40bc1 100644
--- a/mag/test/t-hurwitz_zeta_uiui.c
+++ b/mag/test/t-hurwitz_zeta_uiui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arb.h"
diff --git a/mag/test/t-log1p.c b/mag/test/t-log1p.c
index b73cc117..f346baa9 100644
--- a/mag/test/t-log1p.c
+++ b/mag/test/t-log1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-mul.c b/mag/test/t-mul.c
index 3b4125c4..42ecbe2b 100644
--- a/mag/test/t-mul.c
+++ b/mag/test/t-mul.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-mul_2exp_fmpz.c b/mag/test/t-mul_2exp_fmpz.c
index 3a0c01d5..9f57c868 100644
--- a/mag/test/t-mul_2exp_fmpz.c
+++ b/mag/test/t-mul_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-mul_2exp_si.c b/mag/test/t-mul_2exp_si.c
index e81ec9be..d7fd488b 100644
--- a/mag/test/t-mul_2exp_si.c
+++ b/mag/test/t-mul_2exp_si.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "flint/long_extras.h"
diff --git a/mag/test/t-mul_lower.c b/mag/test/t-mul_lower.c
index acb2e1fc..d8385c93 100644
--- a/mag/test/t-mul_lower.c
+++ b/mag/test/t-mul_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-polylog_tail.c b/mag/test/t-polylog_tail.c
index cf1d7552..eecb118a 100644
--- a/mag/test/t-polylog_tail.c
+++ b/mag/test/t-polylog_tail.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 #include "arb.h"
diff --git a/mag/test/t-pow_fmpz.c b/mag/test/t-pow_fmpz.c
index aa15e683..8a88ea7e 100644
--- a/mag/test/t-pow_fmpz.c
+++ b/mag/test/t-pow_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-pow_ui.c b/mag/test/t-pow_ui.c
index 4c1261b6..d58dab19 100644
--- a/mag/test/t-pow_ui.c
+++ b/mag/test/t-pow_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-pow_ui_lower.c b/mag/test/t-pow_ui_lower.c
index 787cdec5..de5c93d8 100644
--- a/mag/test/t-pow_ui_lower.c
+++ b/mag/test/t-pow_ui_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-rfac_ui.c b/mag/test/t-rfac_ui.c
index 321b0344..98967dfe 100644
--- a/mag/test/t-rfac_ui.c
+++ b/mag/test/t-rfac_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-root.c b/mag/test/t-root.c
index c4671229..c6e07950 100644
--- a/mag/test/t-root.c
+++ b/mag/test/t-root.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-rsqrt.c b/mag/test/t-rsqrt.c
index 8ac3ffb0..069d3b2f 100644
--- a/mag/test/t-rsqrt.c
+++ b/mag/test/t-rsqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-set_d.c b/mag/test/t-set_d.c
index eec64092..bea20df9 100644
--- a/mag/test/t-set_d.c
+++ b/mag/test/t-set_d.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/test/t-set_d_2exp_fmpz.c b/mag/test/t-set_d_2exp_fmpz.c
index 74a4eafe..910e5dca 100644
--- a/mag/test/t-set_d_2exp_fmpz.c
+++ b/mag/test/t-set_d_2exp_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/double_extras.h"
 #include "mag.h"
diff --git a/mag/test/t-set_ui.c b/mag/test/t-set_ui.c
index 90f36665..b8602bf2 100644
--- a/mag/test/t-set_ui.c
+++ b/mag/test/t-set_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-set_ui_lower.c b/mag/test/t-set_ui_lower.c
index 361d3916..65e8e511 100644
--- a/mag/test/t-set_ui_lower.c
+++ b/mag/test/t-set_ui_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-sqrt.c b/mag/test/t-sqrt.c
index 2a37e5e6..75a8b8a2 100644
--- a/mag/test/t-sqrt.c
+++ b/mag/test/t-sqrt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-sub.c b/mag/test/t-sub.c
index fad834a7..daf69b9e 100644
--- a/mag/test/t-sub.c
+++ b/mag/test/t-sub.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/mag/test/t-sub_lower.c b/mag/test/t-sub_lower.c
index 053f2282..9d2946ad 100644
--- a/mag/test/t-sub_lower.c
+++ b/mag/test/t-sub_lower.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "mag.h"
 
diff --git a/partitions.h b/partitions.h
index c8a4798d..021748ad 100644
--- a/partitions.h
+++ b/partitions.h
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #ifndef PARTITIONS_H
 #define PARTITIONS_H
diff --git a/partitions/fmpz_fmpz.c b/partitions/fmpz_fmpz.c
index 3e135850..6f071177 100644
--- a/partitions/fmpz_fmpz.c
+++ b/partitions/fmpz_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include <pthread.h>
 #include "partitions.h"
diff --git a/partitions/hrr_sum_arb.c b/partitions/hrr_sum_arb.c
index defb6187..3d38c73a 100644
--- a/partitions/hrr_sum_arb.c
+++ b/partitions/hrr_sum_arb.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "partitions.h"
 #include "arb.h"
diff --git a/partitions/leading_fmpz.c b/partitions/leading_fmpz.c
index 17e06742..79ef81dc 100644
--- a/partitions/leading_fmpz.c
+++ b/partitions/leading_fmpz.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2016 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "partitions.h"
 
diff --git a/partitions/rademacher_bound.c b/partitions/rademacher_bound.c
index 8d56eb2c..b65f6b8e 100644
--- a/partitions/rademacher_bound.c
+++ b/partitions/rademacher_bound.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with ARB; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2013 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "partitions.h"
 
diff --git a/partitions/test/t-partitions_fmpz_ui.c b/partitions/test/t-partitions_fmpz_ui.c
index 4a60b6ff..5be5227a 100644
--- a/partitions/test/t-partitions_fmpz_ui.c
+++ b/partitions/test/t-partitions_fmpz_ui.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of FLINT.
-
-    FLINT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    FLINT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "partitions.h"
diff --git a/partitions/test/t-partitions_fmpz_ui_threaded.c b/partitions/test/t-partitions_fmpz_ui_threaded.c
index f0e00578..6cde08ae 100644
--- a/partitions/test/t-partitions_fmpz_ui_threaded.c
+++ b/partitions/test/t-partitions_fmpz_ui_threaded.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of FLINT.
-
-    FLINT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    FLINT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011-2014 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "partitions.h"
diff --git a/partitions/test/t-partitions_fmpz_ui_using_doubles.c b/partitions/test/t-partitions_fmpz_ui_using_doubles.c
index 8e294775..5c687586 100644
--- a/partitions/test/t-partitions_fmpz_ui_using_doubles.c
+++ b/partitions/test/t-partitions_fmpz_ui_using_doubles.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of FLINT.
-
-    FLINT is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    FLINT is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with FLINT; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
-
-=============================================================================*/
-/******************************************************************************
-
+/*
     Copyright (C) 2011 Fredrik Johansson
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "flint/arith.h"
 #include "partitions.h"