> If you're running pure stretch (not a stretch+sid mix), that probably *isn't* > this bug, as stretch only has the non-v5 version of libllvm3.5/libclang1-3.5, > and packages using the v5 version (e.g. new versions of mesa) are hence not > allowed to enter stretch.
Thanks for pointing me in the right direction. After downgrading the all the X.org packages that were pulled from sid, I can now successfully install beignet from the package repository. orz