https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90590
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #1) > This is not a libstdc++ bug, we're allowed to define whatever enumerators we > want as long as they use reserved names. Which is almost exactly what I said in the Clang bug you linked to. Nice to know I'm consistent.