https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92121
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution|--- |INVALID --- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- GCC 4.9 is several years old, it doesn't support those new options.