src/java.desktop/unix/native/libawt_xawt/awt/list.h

*** 1,7 ****
  /*
!  * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 61,70 ****
--- 61,74 ----
  other dealings in this Software without prior written authorization
  from The Open Group.
  
      -------------------------------------------------------------------- **/
  
+ #ifdef HEADLESS
+     #error This file should not be included in headless library
+ #endif
+ 
  #ifndef LIST_DEF
  #define LIST_DEF
  
  #include <X11/Xfuncproto.h>
  #define LESS    -1