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-       Copyright (c) 1998-2008 Greg Roelofs.  All rights reserved.
 
-       This software is provided "as is," without warranty of any kind,
 
-       express or implied.  In no event shall the author or contributors
 
-       be held liable for any damages arising in any way from the use of
 
-       this software.
 
-       The contents of this file are DUAL-LICENSED.  You may modify and/or
 
-       redistribute this software according to the terms of one of the
 
-       following two licenses (at your option):
 
-       LICENSE 1 ("BSD-like with advertising clause"):
 
-       Permission is granted to anyone to use this software for any purpose,
 
-       including commercial applications, and to alter it and redistribute
 
-       it freely, subject to the following restrictions:
 
-       1. Redistributions of source code must retain the above copyright
 
-          notice, disclaimer, and this list of conditions.
 
-       2. Redistributions in binary form must reproduce the above copyright
 
-          notice, disclaimer, and this list of conditions in the documenta-
 
-          tion and/or other materials provided with the distribution.
 
-       3. All advertising materials mentioning features or use of this
 
-          software must display the following acknowledgment:
 
-             This product includes software developed by Greg Roelofs
 
-             and contributors for the book, "PNG: The Definitive Guide,"
 
-             published by O'Reilly and Associates.
 
-       LICENSE 2 (GNU GPL v2 or later):
 
-       This program is free software; you can redistribute it and/or modify
 
-       it under the terms of the GNU General Public License as published by
 
-       the Free Software Foundation; either version 2 of the License, or
 
-       (at your option) any later version.
 
-       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 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
 
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