https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82043
--- Comment #3 from Ian Lance Taylor <ian at airs dot com> --- I'm sorry, I can't support a mix of different GCC sources. You are welcome to try to figure out what is going wrong, but I don't know. At a guess, you are using a version of libgo/match.sh that does not know about "aix" with sources that include AIX support. But I'm not really sure.