diff --git a/acb_dirichlet/profile/p-conrey.c b/acb_dirichlet/profile/p-conrey.c
index 3785e073..99bbf184 100644
--- a/acb_dirichlet/profile/p-conrey.c
+++ b/acb_dirichlet/profile/p-conrey.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the 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 "acb_dirichlet.h"
diff --git a/acb_dirichlet/profile/p-thetanull.c b/acb_dirichlet/profile/p-thetanull.c
index 6d77fa92..2754cf92 100644
--- a/acb_dirichlet/profile/p-thetanull.c
+++ b/acb_dirichlet/profile/p-thetanull.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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/profile/p-vec.c b/acb_dirichlet/profile/p-vec.c
index 1ddcabb3..ee2853fa 100644
--- a/acb_dirichlet/profile/p-vec.c
+++ b/acb_dirichlet/profile/p-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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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"
 #include "profiler.h"
diff --git a/acb_dirichlet/test/t-chars.c b/acb_dirichlet/test/t-chars.c
index a0966555..ac0306e6 100644
--- a/acb_dirichlet/test/t-chars.c
+++ b/acb_dirichlet/test/t-chars.c
@@ -1,31 +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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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"
 
-
 int main()
 {
     slong iter, bits;
diff --git a/acb_dirichlet/test/t-conrey.c b/acb_dirichlet/test/t-conrey.c
index 858edb79..9b39f5c5 100644
--- a/acb_dirichlet/test/t-conrey.c
+++ b/acb_dirichlet/test/t-conrey.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-dft.c b/acb_dirichlet/test/t-dft.c
index dd9e00ff..5b45c462 100644
--- a/acb_dirichlet/test/t-dft.c
+++ b/acb_dirichlet/test/t-dft.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-gauss.c b/acb_dirichlet/test/t-gauss.c
index a72f72b2..c5c8927c 100644
--- a/acb_dirichlet/test/t-gauss.c
+++ b/acb_dirichlet/test/t-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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-jacobi.c b/acb_dirichlet/test/t-jacobi.c
index 5f7dcaec..59edb173 100644
--- a/acb_dirichlet/test/t-jacobi.c
+++ b/acb_dirichlet/test/t-jacobi.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-l.c b/acb_dirichlet/test/t-l.c
index a4dac51b..6724a27c 100644
--- a/acb_dirichlet/test/t-l.c
+++ b/acb_dirichlet/test/t-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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-thetanull.c b/acb_dirichlet/test/t-thetanull.c
index 55c515ed..e9e02905 100644
--- a/acb_dirichlet/test/t-thetanull.c
+++ b/acb_dirichlet/test/t-thetanull.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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-vec.c b/acb_dirichlet/test/t-vec.c
index 9c094c2b..23f3ba56 100644
--- a/acb_dirichlet/test/t-vec.c
+++ b/acb_dirichlet/test/t-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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free 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/dlog/1modpe.c b/dlog/1modpe.c
index cf40d58e..a9d12817 100644
--- a/dlog/1modpe.c
+++ b/dlog/1modpe.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/1modpe_init.c b/dlog/1modpe_init.c
index 2a942143..c8bef0b1 100644
--- a/dlog/1modpe_init.c
+++ b/dlog/1modpe_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/1modpe_mod1p.c b/dlog/1modpe_mod1p.c
index c1ec0a9d..830e1717 100644
--- a/dlog/1modpe_mod1p.c
+++ b/dlog/1modpe_mod1p.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/bsgs.c b/dlog/bsgs.c
index 6cd4f62f..b4ff65d3 100644
--- a/dlog/bsgs.c
+++ b/dlog/bsgs.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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the 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 "dlog.h"
diff --git a/dlog/bsgs_init.c b/dlog/bsgs_init.c
index e2aa2827..efb07280 100644
--- a/dlog/bsgs_init.c
+++ b/dlog/bsgs_init.c
@@ -1,28 +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) 2013 Mike Hansen
+/*
     Copyright (C) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the 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 "dlog.h"
diff --git a/dlog/crt.c b/dlog/crt.c
index 867b4481..afd3820a 100644
--- a/dlog/crt.c
+++ b/dlog/crt.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/crt_clear.c b/dlog/crt_clear.c
index 1650118f..5e044687 100644
--- a/dlog/crt_clear.c
+++ b/dlog/crt_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/crt_init.c b/dlog/crt_init.c
index b249a0aa..beb80649 100644
--- a/dlog/crt_init.c
+++ b/dlog/crt_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/factor_group.c b/dlog/factor_group.c
index 06349c38..576f7890 100644
--- a/dlog/factor_group.c
+++ b/dlog/factor_group.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/mod2e.c b/dlog/mod2e.c
index 8622949c..ed051503 100644
--- a/dlog/mod2e.c
+++ b/dlog/mod2e.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/modpe.c b/dlog/modpe.c
index eeaca2ac..785488d2 100644
--- a/dlog/modpe.c
+++ b/dlog/modpe.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/modpe_init.c b/dlog/modpe_init.c
index 6332e2e1..24599cdf 100644
--- a/dlog/modpe_init.c
+++ b/dlog/modpe_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/order23.c b/dlog/order23.c
index ae4d14d3..a9a8c542 100644
--- a/dlog/order23.c
+++ b/dlog/order23.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/order23_init.c b/dlog/order23_init.c
index 7e822dca..dc4b6847 100644
--- a/dlog/order23_init.c
+++ b/dlog/order23_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/power.c b/dlog/power.c
index 0096352a..f6f1b8b8 100644
--- a/dlog/power.c
+++ b/dlog/power.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/power_init.c b/dlog/power_init.c
index a944dd3c..277b6e86 100644
--- a/dlog/power_init.c
+++ b/dlog/power_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/precomp.c b/dlog/precomp.c
index 8b03ff6b..8e58abf9 100644
--- a/dlog/precomp.c
+++ b/dlog/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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/precomp_clear.c b/dlog/precomp_clear.c
index bcae2e6e..690c74db 100644
--- a/dlog/precomp_clear.c
+++ b/dlog/precomp_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/precomp_modpe_init.c b/dlog/precomp_modpe_init.c
index d89b5c62..615ec966 100644
--- a/dlog/precomp_modpe_init.c
+++ b/dlog/precomp_modpe_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/precomp_n_init.c b/dlog/precomp_n_init.c
index 787f020f..b50faae8 100644
--- a/dlog/precomp_n_init.c
+++ b/dlog/precomp_n_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include "math.h"
diff --git a/dlog/precomp_p_init.c b/dlog/precomp_p_init.c
index 193c55cf..6ed3344d 100644
--- a/dlog/precomp_p_init.c
+++ b/dlog/precomp_p_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include "math.h"
diff --git a/dlog/precomp_pe_init.c b/dlog/precomp_pe_init.c
index ce98ba14..d4820f04 100644
--- a/dlog/precomp_pe_init.c
+++ b/dlog/precomp_pe_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/precomp_small_init.c b/dlog/precomp_small_init.c
index 6309682e..dc9ddfca 100644
--- a/dlog/precomp_small_init.c
+++ b/dlog/precomp_small_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/profile/p-precomp.c b/dlog/profile/p-precomp.c
index acfe2e7d..393a99dc 100644
--- a/dlog/profile/p-precomp.c
+++ b/dlog/profile/p-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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the 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 <string.h>
diff --git a/dlog/profile/p-vec.c b/dlog/profile/p-vec.c
index ba04420b..9af48d8d 100644
--- a/dlog/profile/p-vec.c
+++ b/dlog/profile/p-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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the 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 "dlog.h"
diff --git a/dlog/rho.c b/dlog/rho.c
index 3f0eee30..c49d2bfc 100644
--- a/dlog/rho.c
+++ b/dlog/rho.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/rho_init.c b/dlog/rho_init.c
index ae34a392..745dea4f 100644
--- a/dlog/rho_init.c
+++ b/dlog/rho_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/table.c b/dlog/table.c
index 9bef0be4..129070c6 100644
--- a/dlog/table.c
+++ b/dlog/table.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/table_init.c b/dlog/table_init.c
index 54fd707f..2d67feed 100644
--- a/dlog/table_init.c
+++ b/dlog/table_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/test/t-dlog.c b/dlog/test/t-dlog.c
index a3b9f1fd..1a7daeb4 100644
--- a/dlog/test/t-dlog.c
+++ b/dlog/test/t-dlog.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/test/t-modpe.c b/dlog/test/t-modpe.c
index e828dee0..733c6634 100644
--- a/dlog/test/t-modpe.c
+++ b/dlog/test/t-modpe.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/test/t-vec.c b/dlog/test/t-vec.c
index 2a766f61..e1b7dfdc 100644
--- a/dlog/test/t-vec.c
+++ b/dlog/test/t-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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec.c b/dlog/vec.c
index 5c386daf..d10d20ef 100644
--- a/dlog/vec.c
+++ b/dlog/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) 2016 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_add.c b/dlog/vec_add.c
index 77033cab..f1f43329 100644
--- a/dlog/vec_add.c
+++ b/dlog/vec_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_eratos.c b/dlog/vec_eratos.c
index b383c015..67e1eb91 100644
--- a/dlog/vec_eratos.c
+++ b/dlog/vec_eratos.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_eratos_add.c b/dlog/vec_eratos_add.c
index afedac31..33c26c98 100644
--- a/dlog/vec_eratos_add.c
+++ b/dlog/vec_eratos_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_init.c b/dlog/vec_init.c
index 6a5707c3..31bb4063 100644
--- a/dlog/vec_init.c
+++ b/dlog/vec_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_loop.c b/dlog/vec_loop.c
index d3e568fb..70714db4 100644
--- a/dlog/vec_loop.c
+++ b/dlog/vec_loop.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_loop_add.c b/dlog/vec_loop_add.c
index bae5a40d..a3628539 100644
--- a/dlog/vec_loop_add.c
+++ b/dlog/vec_loop_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_pindex_factorgcd.c b/dlog/vec_pindex_factorgcd.c
index fa8f23fc..d35a41a8 100644
--- a/dlog/vec_pindex_factorgcd.c
+++ b/dlog/vec_pindex_factorgcd.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/vec_set_not_found.c b/dlog/vec_set_not_found.c
index 48a61cb3..d2f46f82 100644
--- a/dlog/vec_set_not_found.c
+++ b/dlog/vec_set_not_found.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 
diff --git a/dlog/vec_sieve.c b/dlog/vec_sieve.c
index d223239d..ce7eb5f6 100644
--- a/dlog/vec_sieve.c
+++ b/dlog/vec_sieve.c
@@ -1,27 +1,13 @@
-/*=============================================================================
-
-    This file is part of ARB.
-
-    ARB is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    ARB is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"
 #include <math.h>
diff --git a/dlog/vec_sieve_add.c b/dlog/vec_sieve_add.c
index 0b0e15f9..97b8c2a9 100644
--- a/dlog/vec_sieve_add.c
+++ b/dlog/vec_sieve_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 Pascal Molin
 
-******************************************************************************/
+    This file is part of Arb.
+
+    Arb is free software: you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 2.1 of the License, or
+    (at your option) any later version.  See <http://www.gnu.org/licenses/>.
+*/
 
 #include "dlog.h"