https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89072
--- Comment #8 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #7)
> -Werror always is wrong, for any sane users. Always. Not just "in general".
-Werror={something you really understand} may be OK. A -Werror without = is
always wrong.
