https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115907
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|UNCONFIRMED |RESOLVED --- Comment #23 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The c++ frontend has defined _GNU_Source since at least 2001.