https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80881
--- Comment #72 from Sam James <sjames at gcc dot gnu.org> --- Note that your patch doesn't include the changes to generated configure. While Eric knows that and likely decided not to include that in his, I'm pointing it out because you might not be aware for your own patch that your changes might not be being tested if you haven't regenerated it locally.