https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67932
--- Comment #8 from R Copley <rcopley at gmail dot com> --- Thanks. I've emailed the mingw-w64 list at http://sourceforge.net/p/mingw-w64/mailman/mingw-w64-public. (You expressed it better but I hadn't seen your last comment.)
