In std11, on mac, operator new doesn't take right reference.

src/google/protobuf/map.h

@@ -167,7 +167,7 @@ class Map {
       }
     }
 
-#if __cplusplus >= 201103L
+#if __cplusplus >= 201103L && !defined(GOOGLE_PROTOBUF_OS_APPLE)
     template<class NodeType, class... Args>
     void construct(NodeType* p, Args&&... args) {
       new (p) NodeType(std::forward<Args>(args)...);