Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
    Copyright (c) 1996, 1997 Andreas Dilger
    Copyright (c) 1998, 1999 Glenn Randers-Pehrson

    The PNG Reference Library is supplied "AS IS".  The Contributing Authors
    and Group 42, Inc. disclaim all warranties, expressed or implied,
    including, without limitation, the warranties of merchantability and of
    fitness for any purpose.  The Contributing Authors and Group 42, Inc.
    assume no liability for direct, indirect, incidental, special, exemplary,
    or consequential damages, which may result from the use of the PNG
    Reference Library, even if advised of the possibility of such damage.

    Permission is hereby granted to use, copy, modify, and distribute this
    source code, or portions hereof, for any purpose, without fee, subject
    to the following restrictions:
    1. The origin of this source code must not be misrepresented.
    2. Altered versions must be plainly marked as such and must not be
       misrepresented as being the original source.
    3. This Copyright notice may not be removed or altered from any source or
       altered source distribution.

    The Contributing Authors and Group 42, Inc. specifically permit, without
    fee, and encourage the use of this source code as a component to
    supporting the PNG file format in commercial products.  If you use this
    source code in a product, acknowledgment is not required but would be
    appreciated.

YOU MUST OBSERVE ANY AUTHORS' CONDITIONS WITH RESPECT TO
INDIVIDUAL COMPONENTS PROVIDED WITHIN THIS CODE.  SUPPORT
FOR THE TECHNOLOGIES AND DOCUMENTATION IS NOT PROVIDED 
BY SUN MICROSYSTEMS, INC.

THE TECHNOLOGIES AND DOCUMENTATION ARE PROVIDED "AS IS" WITHOUT TECHNICAL 
SUPPORT OR WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT 
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
PARTICULAR PURPOSE, OR NON-INFRINGEMENT.