Already fixed upstream in https://github.com/sezero/mikmod/commit/4ceeed3f3929b9d9f7cfe891d44f43d202b64416. Fixes -Wstrict-prototypes. --- a/libmikmod.m4 +++ b/libmikmod.m4 @@ -79,7 +79,7 @@ char* my_strdup (char *str) return new_str; } -int main() +int main(void) { int major,minor,micro; int libmikmod_major_version,libmikmod_minor_version,libmikmod_micro_version;