The definition of __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ follows the target triple on darwin.  For example i386-apple-darwin9 -> 1050 because darwin9 is "10.5".
The definition of __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ follows
the target triple on darwin.  For example i386-apple-darwin9 -> 1050 because
darwin9 is "10.5".


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@56826 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang