https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98139
--- Comment #5 from David Edelsohn <dje at gcc dot gnu.org> --- It has nothing to do with the proper way to install GCC on AIX. It was not the only -Werror failure on AIX. That is why I said, if that's the only problem, we're lucky. The -Werror failures change. The patch is okay, but it doesn't remove the need to recommend --disable-werror.