https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66521
--- Comment #12 from Eric Gallager <egall at gwmail dot gwu.edu> --- Created attachment 36133 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36133&action=edit vtv-related warnings printed upon linking libstdc++ (as I said I'd attach in my previous comment)
