[Bug target/63610] Fixing the libtool bug for Yosemite (darwin14)

[iains at gcc dot gnu.org]

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?