https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62218
--- Comment #4 from dhowells at redhat dot com <dhowells at redhat dot com> --- The following multilib subdirs are configured: mb m2 m2e m4 m4-single m4-single-only mb/m2 mb/m2e mb/m4 mb/m4-single mb/m4-single-only mb/m2a mb/m2a-single The problem occurs on the first (mb).