The following changes have been implemented:
* make sure all standard (eg. $CFLAGS) variables are taken into
account when compiling;
* define default compilation flags in separate $MAINT_* variables
so that user-defined variables can override them;
* split default flags the expected way, eg. $CPPFLAGS instead of
$CFLAGS for C preprocessor flags;
* declare all dependencies, including the ones on header files;
* install localized man pages in the corresponding locale-qualified
directories, so that man(1) can pick them up automatically;
* install .desktop file;
* support $DESTDIR for downstream maintainers' convenience;
* provide uninstall target;
* get rid of symlink hackery.
On 64-bit Linux systems, if LD_PRELOAD isn't a relative/absolute
pathname to libswmhack.so, then ld.so attempts to load a 32-bit version
for 32-bit programs. This produces an error message. The solution is
to either build and install a 32-bit libswmhack.so.0.0 or use an
absolute/relative path so that ld.so only loads libswmhack.so for 64-bit
binaries.
Fix Makefiles to set variables before they are referenced.
XCB ICCCM public functions, types and macros are now prefixed.
A temporary fix has been added for OpenBSD. Needs improvement.
Resolve a variable naming conflict.
Set num_screens in unmap_all.
In workaround(), utf8_string should be netwmname, not netwmcheck.
Initialize some uninitialized pointers.
Update debug printf format to reflect new xcb variable types.
Vacuum up whitespace.
Add XCB libs to linux Makefile
