http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59147
--- Comment #2 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- It works for me on powerpc-apple-darwin9 (with -m64), x86_64-apple-darwin10, and x86_64-apple-darwin13. It looks like a bug in the 128-bit library of x86_64-w64-mingw32.