-HOSTCC = $(call before-snow-leopard, "cc", "gcc")
-HOSTCFLAGS += $(call before-snow-leopard, "-traditional-cpp")
-HOSTLDFLAGS += $(call before-snow-leopard, "-multiply_defined suppress")
+HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
+HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
+HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")