https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54924
--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #10) > I'm starting to think we should just make libstdc++ headers 100% > warning-free We're closer to that now, but not in a position to stop marking our headers as system headers.
