https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24882 Bug 24882 depends on bug 56437, which changed state.
Bug 56437 Summary: basic_string assumes that allocators are default-constructible https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56437 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED