@@ -145,14 +145,20 @@
 #define OF_IVAR_OFFSET(ivar) ((intptr_t)&ivar - (intptr_t)self)
 #define OF_GETTER(ivar, atomic) \
 	return objc_getProperty(self, _cmd, OF_IVAR_OFFSET(ivar), atomic);
 #define OF_SETTER(ivar, value, atomic, copy) \
 	objc_setProperty(self, _cmd, OF_IVAR_OFFSET(ivar), value, atomic, copy);
+
+#if defined(__clang__) || __GCC_VERSION__ >= 405
+# define OF_UNREACHABLE __builtin_unreachable();
+#else
+# define OF_UNREACHABLE abort();
+#endif
 
 #define OF_UNRECOGNIZED_SELECTOR		\
 	[self doesNotRecognizeSelector: _cmd];	\
-	abort();
+	OF_UNREACHABLE
 #define OF_INVALID_INIT_METHOD				\
 	@try {						\
 		[self doesNotRecognizeSelector: _cmd];	\
 	} @catch (id e) {				\
 		[self release];				\