Stumbled across this while trying to move my system away from the emul-linux-x86-* packages. Build log seems to indicate some issue related to SSP. Builds fine with ABI_X86='64' Reproducible: Always Output from emerge --info is too long for comments, I'll attach it shortly together with the build log.
Created attachment 391384 [details] Output from emerge --info.
Created attachment 391386 [details] First half of build log File uploads don't seem to be working for me for some reason, and the entire build log is too big to be attached uncompressed. As such, I've split it into two parts using 'split -n l/2' and uploaded both.
Created attachment 391388 [details] Second half of build log
*** This bug has been marked as a duplicate of bug 503500 ***