[Bug libstdc++/92798] -fshort-enums can break iterators of std::map

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92798

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
-fshort-enums is an ABI-changing option, which means you should recompile the
entire toolchain including the standard libraries.

Why are you using it anyway? In C++ you can specify a fixed underlying type, so
you can control the exact size of each enumeration type.