https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66181
--- Comment #11 from Andreas Tobler <andreast at gcc dot gnu.org> --- For the record from my side: sparc-solaris and arm*-*-freebsd* are also affected. Applying the line from #6 cures the bootstrap on arm. But sparc-solaris is still broken, 66252 is the pointer there.