https://bugs.freedesktop.org/show_bug.cgi?id=105251
--- Comment #76 from deltasquared ds2.bugs.freedesktop@gmail.com --- (In reply to deltasquared from comment #75)
L CALLBACK: type = 0x8251, severity = 0x826b, message = LLVM diagnostic
GL_CALLBACK rather on that first line. terminal copypaste fail.