My system is OS X El Capitan (10.11.4). I'm using an installation built with a successful bootstrap from bug 564814. I haven't looked this very much but it appears the ebuild for media-libs/x264 is not pulling in the dependency for an assembler. The build subsequently fails. I see there is a DEPEND for abi_x86_64, which should include my abi, but it's not working. This could be an issue for multilib@gentoo.org. Reproducible: Always
Created attachment 430012 [details] build.log
Created attachment 430014 [details] ebuild
thanks, profiles weren't fully on par yet, fixed now