With Xinerama support built into the X server but not in use,
sprite.screen is NULL and yet the SyntheticMotion
macro would dereference it. Avoid that by just passing sprite.screen
to PostSyntheticMotion which can then dereference it when Xinerama is
enabled.
Also, define PostSyntheticMotion in dixevents.h and include dixevents.h in
getevents.c
Add XSERV_t, TRANS_SERVER, TRANS_REOPEN to quash warnings.
Add #include <dix-config.h> or <xorg-config.h>, as appropriate, to all
source files in the xserver/xorg tree, predicated on defines of
HAVE_{DIX,XORG}_CONFIG_H. Change all Xfont includes to
<X11/fonts/foo.h>.