https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116813
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Sam James from comment #0) > Note that the std::vector<bool> -D_GLIBCXX_ASSERTIONS > wiring is new in trunk. Yes, since r15-1689-g8fd84bc009b307