[Bug target/63810] gcc sets incorrect macro for OS X deployment targets

[larryv at macports dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63810

--- Comment #4 from Lawrence Velázquez <larryv at macports dot org> ---
Created attachment 33969
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33969&action=edit
patch against 4.9 branch for handling deployment targets correctly

Patched GCC 4.9.2 matched the behavior of Apple LLVM Compiler 6.0
(clang-600.0.54) over 8,451 out of 8,464 test strings. The 13 mismatches are
due to a bug in clang.