merge libXext 1.3.5, libbXmu 1.1.4, libXrender 1.0.1, libxkbfile 1.1.1 and
libxshmfence 1.3.1.

merge libXext 1.3.3, libXi 1.7.4, libXinerama 1.1.3 and libpthread-stubs 0.3.

merge libXext 1.3.2

avoid having macros expand code to be:
((f) ? (f)->m1 : NULL)->m2

initial import of libXext-1.3.0. important changes include:
backwards compat for older XSync clients
Initial Fence Sync Object support

initial import of libXext-1.2.0

initial import of libXext-1.1.1

initial import of libXext-1.0.4