https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88319
--- Comment #4 from doerthous <doerthous at 21cn dot com> --- (In reply to Andreas Schwab from comment #3) > That happens because the compiler name is missing. Why is it missing? After an installation of libtool in archlinux and rebuild gcc, it seems work now, thouth the libtool's version is still 2.2.7a.