1OSX_MIN_VERSION=10.7 2OSX_SDK_VERSION=10.11 3OSX_SDK=$(SDK_PATH)/MacOSX$(OSX_SDK_VERSION).sdk 4LD64_VERSION=253.9 5darwin_CC=clang -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) 6darwin_CXX=clang++ -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) -stdlib=libc++ 7 8darwin_CFLAGS=-pipe 9darwin_CXXFLAGS=$(darwin_CFLAGS) 10 11darwin_release_CFLAGS=-O2 12darwin_release_CXXFLAGS=$(darwin_release_CFLAGS) 13 14darwin_debug_CFLAGS=-O1 15darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS) 16 17darwin_native_toolchain=native_cctools 18