https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29843 Bug 29843 depends on bug 7221, which changed state.
Bug 7221 Summary: wrong linkage of typedef-named classes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7221 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED