grovel: constantenum: signal warnings properly
grovel: constantenum: signal warnings properly

attila-lendvai/cffi,marsijanin/cffi,3b/cffi,wesen/cffi,dkochmanski/cffi,3b/cffi,dochang/cffi,dkochmanski/cffi,wesen/cffi,mcna/cffi,dochang/cffi,attila-lendvai/cffi,akovalenko/cffi,mcna/cffi,cffi/cffi,cffi/cffi,stassats/cffi,stassats/cffi,stassats/cffi,dkochmanski/cffi,kingcheez/cffi-cheez,wesen/cffi,marsijanin/cffi,kingcheez/cffi-cheez,dochang/cffi,3b/cffi,marsijanin/cffi,akovalenko/cffi,akovalenko/cffi,kingcheez/cffi-cheez,cffi/cffi