https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53313
--- Comment #10 from Marc Glisse <glisse at gcc dot gnu.org> --- Manuel, you seem to want a -Wsuper-extra that you can use everyday (maybe with a couple -Wno-*). What some other people want with -Weverything is a way to discover what warnings are available in the compiler. For instance, they discover a bug or a performance issue in their code, extract a small reproducer, and want to find if there exists a flag that would help them narrow down the places they need to review in the rest of their code base for similar issues. So yes, it should warn all over the place and give contradictory advice, it should even include the warning that just tells you how large your function is. As a bonus, this makes it obvious to users that they are not supposed to make their code -Weverything clean. Maybe the name -Wrant would make it more acceptable?
