without libXext blender cannot be run - no idea why ati drivers require it but nvidia etc dont
Merge branch 'experimental/ati' into refs/top-bases/experimental/marc

* experimental/ati:
  without libXext blender cannot be run - no idea why ati drivers require it but nvidia etc dont
Merge commit 'refs/top-bases/experimental/marc' into experimental/marc

* commit 'refs/top-bases/experimental/marc':
  without libXext blender cannot be run - no idea why ati drivers require it but nvidia etc dont