change "foo.h" to <X11/foo.h> for core headers, e.g. X.h, Xpoll.h;
change "foo.h", "extensions/foo.h" and "X11/foo.h" to
<X11/extensions/foo.h> for extension headers, e.g. Xv.h;
change "foo.[ch]" to <X11/Xtrans/foo.[ch]> for Xtrans files.
build fixes for AMD64.
Made shm* functions in the libc_wrapper more standard conformant by setting
errno correctly.
Use xf86ExendedInitInt10() in VBEExtendedInit() to be able to pass flags.