https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63765
--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to r...@cebitec.uni-bielefeld.de from comment #11) > > --- Comment #9 from David Edelsohn <dje at gcc dot gnu.org> --- > > I would have expected _XOPEN_SOURCE=500 to be defined in a host-specific > > configure file (like libstdc++-v3/config/os/.../os_defines.h) or added to > > the > > compile line in configure. > > Given how little target-specific configuration libobjc needs, this seems > overkill to me. That is because it picks up most of it from GCC's target headers right now. I had plans to changing that but I never got around fixing that around 9 years ago :).
