https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67030
--- Comment #17 from ktkachov at gcc dot gnu.org --- (In reply to Marek Polacek from comment #16) > Yeah, that doesn't look related to this warning at all. Thanks for checking. Yeah, turns out that was due to a private patch of mine. Clean trunk bootstraps ok. Sorry for the noise.