Index: src/chext/dllmain.h
===================================================================
diff -u -N -rd5c3edd0d167db9b5d47d04248820fda49499a5e -rb79aca0d66b1084f230022efe39cc89307482e6d
--- src/chext/dllmain.h	(.../dllmain.h)	(revision d5c3edd0d167db9b5d47d04248820fda49499a5e)
+++ src/chext/dllmain.h	(.../dllmain.h)	(revision b79aca0d66b1084f230022efe39cc89307482e6d)
@@ -1,3 +1,23 @@
+// ============================================================================
+//  Copyright (C) 2001-2015 by Jozef Starosczyk
+//  ixen@copyhandler.com
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU Library General Public License
+//  (version 2) as published by the Free Software Foundation;
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU Library General Public
+//  License along with this program; if not, write to the
+//  Free Software Foundation, Inc.,
+//  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+// ============================================================================
+#ifndef __DLLMAIN_H__
+#define __DLLMAIN_H__
 
 class CCHExtModule : public CAtlDllModuleT<CCHExtModule>
 {
@@ -7,3 +27,5 @@
 };
 
 extern class CCHExtModule _AtlModule;
+
+#endif