https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92832
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> --- I am not sure which file was affected. make -j 10 was running, so it could be one of many. Fortran is probably not the cause. Beyond trying a make -j 1 build without fortran, which might take 24 hours or more, I am not sure how to answer your question.