Log Message:
Update to 1.9.3.

1.9.3:
Fix up some portability and build issues in the FD passing code introduced
in 1.9.2.   Now builds & works on Solaris as well as Linux, can be enabled
or disabled via --enable-sendfds and --disable-sendfds flags to configure.

1.9.2:
This has minimal patches needed to support GE events and current
xcb-proto, and then the patches for DRI3 and Present.