https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
--- Comment #14 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Jeffrey Walton from comment #13) > #if GCC_DIAGNOSTIC_AWARE > # pragma GCC diagnostic push > # pragma GCC diagnostic ignored "-Wunused-value" > # pragma GCC diagnostic ignored "-Wunused-variable" > #endif As far as I understand, the #pragma should work as expected for those two warnings. Only those warnings given during preprocessing and lexing are affected by this bug.