https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 118285, which changed state.
Bug 118285 Summary: [14 Regression] GCC rejects some constexpr std::string usages https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118285 What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |ASSIGNED Resolution|FIXED |---