Created attachment 456228 [details] build.log Recently I had to rebuild my system (RAM failure) and I noticed and captured all the circular dependency problems. (media-libs/mesa-12.0.1:0/0::gentoo, ebuild scheduled for merge) depends on (x11-libs/libva-1.6.2:0/0::gentoo, ebuild scheduled for merge) (buildtime_slot_op) (media-libs/mesa-12.0.1:0/0::gentoo, ebuild scheduled for merge) (buildtime) It might be possible to break this cycle by applying any of the following changes: - x11-libs/libva-1.6.2 (Change USE: -egl) - media-libs/mesa-12.0.1 (Change USE: -vaapi)
This is a configuration issue. Portage guides you with what to do temporarily after which you can reset the USE flags.