https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69650
--- Comment #28 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- (In reply to Richard Biener from comment #25) > Yes, Bernd's patch still works then. I'd prefer this at this stage. > There doesn't seem to be any CPP_W_* that fits though. Do you need one? Perhaps -Wcpp? Or -Wpreprocessed? I think it should be a warning enabled by default.