https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79618
--- Comment #10 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Martin Sebor from comment #9) > It doesn't. -Wformat-diag runs after adjacent string literals have been > concatenated. Detecting these kinds of issues would mean enhancing the > preprocessor. ...so it sounds like we still need Roland's linter, then.