[Xorg] HEADSUP: DRI merged

[Eric Anholt]

OK, it's in the tree, and seems to be working.  The build succeeded on
pdx except for http://freedesktop.org/bugzilla/show_bug.cgi?id=757
getting in the way, and it's going successfully on local FreeBSD.  I'm
running the same code (r200 driver) from my practice merge that was used
to commit the diffs, so I think things should be ok.  Please report
build-related problems to me, or even better, bugzilla and assign them
to eta at lclark.edu.  Other DRI issues to the standard DRI stuff in
bugzilla.

Notable things this brings in, off the top of my head:
- Mesa 6
- MergedFB for Radeon!
- Many GLX fixes
- Working SiS DRI driver
- Major Radeon and R200 updates
- fbconfigs support
- Beginnings of pbuffer support (indirect only, and only in specific
circumstances).

Notable things this doesn't bring in:
- Mach64 DRI support (insecure)
- Savage DRI support (insecure)

Possible issues I see:
- MergedFB mismerges (I *think* I got it right)
- New DRI modules won't work with old libGL, but this shouldn't be too
major
- X86 asm issues in new DRI driver build - WORKSFORME
- Need i915 DDX brought over and DRI Imakefile glue
- It's development code, but then this is a development branch.
- my lack of sleep

-- 
Eric Anholt                                eta at lclark.edu          
http://people.freebsd.org/~anholt/         anholt at FreeBSD.org