https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63610
--- Comment #16 from Iain Sandoe <iains at gcc dot gnu.org> --- Hmm the patch for __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ has been applied to 4.9 (AFAICT), although not to 4.8, Jack, what does your 4.9 compiler give for: gcc -dM -E -x c /dev/null |grep ENVIRO ? If the __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ is being set correctly, what is causing the need for MACOSX_DEPLOYMENT_TARGET?
