Created attachment 894203 [details] concatenated emerge --info and build log This bug occurs when xorg-proto is not installed, and I couldn't find it in ffmpeg's ebuild.
I think the build.log is missing - that looks like the environment file.
i think portage said the build log *is* the environment file? i don't have any kind of build.log in my /var/log/
Created attachment 894355 [details] build.log