Copy config.h to faad2-config.h. Modify systems.h to refer to
faad2-config.h, and install faad2-config.h. This situation is
discussed here:
http://lists.gnu.org/archive/html/automake/2000-10/msg00114.html
Remove the undef of PACKAGE and VERSION, and add a 3rd non-empty
argument to AM_INIT_AUTOMAKE. This situation is discussed here:
http://lists.gnu.org/archive/html/automake/2000-10/msg00108.html
Modify the condition from HAVE_GLIB_H to __G_LIB_H__, which was
easier because faad2 doesn't depend on glib.
Bump pkgrevision.
Install header files in include/faad2
Install include/faad2/config.h
Add include/faad2 to search path in buildlink3.mk
Since software depending on mp4.h won't be able to build without this
change, bump PKGREVISION and update BUILDLINK_DEPENDS.faad2 in
buildlink3.mk