Comment 2 for bug 1162784

I believe that this commit is likely to fix the issue
http://cgit.freedesktop.org/mesa/mesa/commit/?id=ca9a7d975af228cabb79c3040ec67f26f94f90a2

Unfortunately the binary program is 32bit and mesa/libgl is not willing to cross-compile

The commit made it's way into mesa-9.1.2 (Raring has currently 9.1.1 in the repository)
I hope I'll be able to pull it from saucy and test soon