@@ -778,11 +778,12 @@
 
 	objc_updateDTable(class);
 }
 
 Method
-#if defined(__clang__) && __clang_major__ == 3 && __clang_minor__ <= 7
+#if defined(__clang__) && __has_attribute(__optnone__) && \
+    __clang_major__ == 3 && __clang_minor__ <= 7
 /* Work around an ICE in Clang 3.7.0 on Windows/x86 */
 __attribute__((__optnone__))
 #endif
 class_getInstanceMethod(Class class, SEL selector)
 {