How to suppress GCC variadic macro argument warning for zero arguments for a particular macro definition within a source file [duplicate]

Answer 1

You should be able to suppress this using

#pragma GCC system_header

But that applies for the rest of the file, and you cannot only use it in included files. So doesn't provide perfect scoping and may require some reshuffling / indirect inclusion of header files.

(But quite frankly, if you can't fix the header file to be standards-conforming, you might as well consider the whole header a system_header, which excludes it from producing most warnings.)

See https://gcc.gnu.org/onlinedocs/cpp/System-Headers.html

Answer 2

You can try to use this:

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"
#define FOO(A, ...) foo(A, ##__VA_ARGS__)
#pragma GCC diagnostic pop