[Bug c/82922] Request: add -Wstrict-prototypes to -Wextra as K&R style is obsolescent

[sam at gentoo dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82922

--- Comment #12 from Sam James <sam at gentoo dot org> ---
GCC lacks an equivalent for Clang's -Wdeprecated-non-prototype, right?