https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94745
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Louis Dionne from comment #0) > This makes detecting whether GCC supports a given warning flag very > challenging in build systems. You're doing it wrong then. Try 'g++ -Q --help=warnings' instead of probing individual options.
