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>.
chipsets can be probed without OS support as probing them is only
possible using ACPI. One example of this are the HP ZX1/2 chipsets:
previously the code assumed that these chips were present when no other
of the known chipsets could be probed. This assumption brought SGI
Altrix machines with 64 CPUs to a grinding halt.
