https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56066
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|REOPENED |RESOLVED Component|c++ |target --- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I don't think this is a bug. Rather the problem is you are linking two different linkages and expecting it to work. in the C++ case, it is vague linkage while in C, there is extern linkage still. the correct thing is to use gnu_inline so it is the linkage you expect in both langauges.