[Bug c++/89450] RFC: Strengthen -fstrict-enums

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89450

--- Comment #10 from Marc Glisse <glisse at gcc dot gnu.org> ---
I still think some __attribute__((exhaustive)) on an enum definition would be
useful for this sort of thing.