media-libs/mesa-9.1 fails in the configure stage in my system with the following error: configure: error: LLVM 3.2 or newer with R600 target enabled is required. To use the r600/radeonsi LLVM backend, you need to fetch the LLVM source from: git://people.freedesktop.org/~tstellar/llvm master and build with --enable-experimental-targets=R600 I have sys-devel/llvm-3.1-r2 on my system. Now I don't have time to upload my 'emerge --info', but if you need it I can post it tomorrow. Reproducible: Always Steps to Reproduce: 1. emerge -1v =mesa-9.1
No, it should depend on >=sys-devel/llvm-3.3 since in gentoo llvm-3.2 doesn't include R600 backend. Otherwise llvm-3.2 need to be patched. http://lists.freedesktop.org/archives/mesa-dev/2013-January/032205.html
As I can see, this bug was fixed by this commit: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-libs/mesa/mesa-9.1.ebuild?r1=1.4&r2=1.5 Only llvm-9999 have video_cards_radeon USE flag for now. And llvm-3.3 will have it too when it is released
*** This bug has been marked as a duplicate of bug 442854 ***