I don't get any warnings with -Wall and I get a "unused variables argc and argc" with -Wextra.
Changing main's signature to int main() eliminates all warnings at -Wextra.
Changing main's signature to int main() eliminates all warnings at -Wextra.
I've used up enough of your time already, but if you feel like it...:
Do you know if gcc has the equivalent of #pragma warning( disable: N ) ? i.e. could you disable your argc and argv warning for just that source file, and no other?
If yes, then is there a way to "scope" that disable to be within a header file? (#pragma warning(push) and #pragma warning(pop))
#pragma GCC diagnostic ignored "-Wunused-parameter"