-Extra_LD_Flags = -framework CoreFoundation -framework IOKit
-Extra_MIG_Flags = -no-cpp-precomp -R -untyped -DNO_DIRECT_RPC
+Extra_CC_Flags += -DNO_DIRECT_RPC
+
+Extra_Frameworks += -framework CoreFoundation -framework IOKit
+Extra_MIG_Flags = -R -untyped -DNO_DIRECT_RPC