https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61457
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Inaccurately refusing |[C++11/14 only] |non-ODR usage of type with |Inaccurately refusing |no linkage |non-ODR usage of type with | |no linkage --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Hmm, on the trunk this is accepted for C++17+ but rejected for C++11 and C++14.