[Bug c++/87656] Useful flags to enable with -Wall or -Wextra

[egallager at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87656

--- Comment #8 from Eric Gallager <egallager at gcc dot gnu.org> ---
Any reason not to put -Wnested-externs in -Wall or -Wextra?