@@ -197,10 +197,14 @@
 #if __has_feature(objc_kindof)
 # define OF_KINDOF(cls) __kindof cls
 #else
 # define OF_KINDOF(cls) id
 #endif
+
+#if __has_feature(objc_class_property)
+# define OF_HAVE_CLASS_PROPERTIES
+#endif
 
 #if defined(__clang__) || OF_GCC_VERSION >= 405
 # define OF_UNREACHABLE __builtin_unreachable();
 #else
 # define OF_UNREACHABLE abort();