https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67239 Bug 67239 depends on bug 60336, which changed state.
Bug 60336 Summary: empty struct value is passed differently in C and C++ https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60336 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED