https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89179
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #8) > You still have not answered my question about precompiled headers? Do you > use them? If so the workaround is not to use them at all. See PR 61250 for information on random PCH bugs on darwin (it only happens on darwin).