Create a manpages.am makefile snippet in the root dir.
Each man page makefile includes manpages.am.
Now all man pages in xserver are generated the same way
using the same method as all of other xorg modules.
All ".man.pre" files in git are ".man" now.
Links are no longer created between different file types.
Reviewed-by: Alan Coopersmith <firstname.lastname@example.org>
Reviewed-by: Rémi Cardona <email@example.com>
Signed-off-by: Gaetan Nadon <firstname.lastname@example.org>
Signed-off-by: Keith Packard <email@example.com>