[Bug c/53232] No warning for main() without a return statement with -std=c99

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53232

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Yeah, but warnings with high false positivity rates at least shouldn't be in
-Wall.