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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/94745] No error emitted for unknown -Wno-meow argument
Date: Fri, 24 Apr 2020 13:34:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94745

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This is by design. It means that makefiles written for different versions of
GCC do not trigger spurious diagnostics.

If somebody says "I don't want warnings about cat noises" and their version=
 of
GCC doesn't support -Wmeow then their request is granted. Warning about it
would cause valid compilations to fail.

If other diagnostics are being emitted anyway, then adding one to point out=
 the
unrecognized option isn't going to make a build go from passing to failing.=