gcc-you can use this code to learn something about gcc, and inquire further into linux,

				// { dg-do compile }								// Copyright (C) 2002 Free Software Foundation, Inc.				// Contributed by Nathan Sidwell 12 Mar 2002 								// PR c++/5659. Failed to notice default accessed changed								class Foo;				struct Foo 				{				  static int m;				};								class Outer {				  private:				  class Inner;				  Inner *i;				  public:				  void pub();				};								struct Outer::Inner {				  Inner(int i);				};								void Outer::pub() { i = new Inner(Foo::m); }