https://bugs.freedesktop.org/show_bug.cgi?id=104932
--- Comment #7 from Robin Kauffman robink@creosotehill.org --- (In reply to Michel Dänzer from comment #4)
Which versions of Mesa & LLVM are you using?
I should also add that LLVM & Clang were compiled/installed *prior* to merging libclc & Mesa (probably prior to libdrm as well, but in full honesty I can't remember), and that libdrm, libclc & Mesa were merged in that order.