http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52964
--- Comment #5 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-12 23:25:36 UTC --- (In reply to comment #4) > (In reply to comment #3) > > With -fsyntax-only, the warning is not emitted -- any reason for that? > > Yes because -fsyntax-only does not do template instantatiations at all IIRC. And is there a reason for that?