https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65608 Bug 65608 depends on bug 39057, which changed state.
Bug 39057 Summary: ICE with default argument in friend declaration https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39057 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
