Comment # 74 on bug 110214 from Diego Viola

(In reply to Diego Viola from comment #65)
> Just to make it a bit more clear:
> 
> If I set that environment variable while I'm already on X:
> 
> export MESA_EXTENSION_OVERRIDE="-GL_NV_texture_barrier"
> 
> It has no effect on Xephyr (from current git master), i.e. xterm still shows
> the bug.

This comment is completely wrong, ignore it.