https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11196 --- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> --- See https://sourceware.org/bugzilla/show_bug.cgi?id=21326 and https://sourceware.org/bugzilla/show_bug.cgi?id=21327 for the changes to glibc that are needed before we can change anything in GCC.