https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 57764, which changed state.
Bug 57764 Summary: class static constexpr variables cannot be references https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57764 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
