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source: vbox/trunk/src/libs/libpng-1.2.54/LICENSE@ 65642

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libpng 1.2.54 unmodified

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1
2This copy of the libpng notices is provided for your convenience. In case of
3any discrepancy between this copy and the notices in the file png.h that is
4included in the libpng distribution, the latter shall prevail.
5
6COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
7
8If you modify libpng you may insert additional notices immediately following
9this sentence.
10
11This code is released under the libpng license.
12
13libpng versions 1.0.7, July 1, 2000, through 1.2.54, November 12, 2015, are
14Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are
15derived from libpng-1.0.6, and are distributed according to the same
16disclaimer and license as libpng-1.0.6 with the following individuals
17added to the list of Contributing Authors:
18
19 Simon-Pierre Cadieux
20 Eric S. Raymond
21 Cosmin Truta
22 Gilles Vollant
23
24and with the following additions to the disclaimer:
25
26 There is no warranty against interference with your enjoyment of the
27 library or against infringement. There is no warranty that our
28 efforts or the library will fulfill any of your particular purposes
29 or needs. This library is provided with all faults, and the entire
30 risk of satisfactory quality, performance, accuracy, and effort is with
31 the user.
32
33libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
34Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
35libpng-0.96, and are distributed according to the same disclaimer and
36license as libpng-0.96, with the following individuals added to the list
37of Contributing Authors:
38
39 Tom Lane
40 Glenn Randers-Pehrson
41 Willem van Schaik
42
43libpng versions 0.89, June 1996, through 0.96, May 1997, are
44Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
45and are distributed according to the same disclaimer and license as
46libpng-0.88, with the following individuals added to the list of
47Contributing Authors:
48
49 John Bowler
50 Kevin Bracey
51 Sam Bushell
52 Magnus Holmgren
53 Greg Roelofs
54 Tom Tanner
55
56libpng versions 0.5, May 1995, through 0.88, January 1996, are
57Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
58
59For the purposes of this copyright and license, "Contributing Authors"
60is defined as the following set of individuals:
61
62 Andreas Dilger
63 Dave Martindale
64 Guy Eric Schalnat
65 Paul Schmidt
66 Tim Wegner
67
68The PNG Reference Library is supplied "AS IS". The Contributing Authors
69and Group 42, Inc. disclaim all warranties, expressed or implied,
70including, without limitation, the warranties of merchantability and of
71fitness for any purpose. The Contributing Authors and Group 42, Inc.
72assume no liability for direct, indirect, incidental, special, exemplary,
73or consequential damages, which may result from the use of the PNG
74Reference Library, even if advised of the possibility of such damage.
75
76Permission is hereby granted to use, copy, modify, and distribute this
77source code, or portions hereof, for any purpose, without fee, subject
78to the following restrictions:
79
80 1. The origin of this source code must not be misrepresented.
81
82 2. Altered versions must be plainly marked as such and must not
83 be misrepresented as being the original source.
84
85 3. This Copyright notice may not be removed or altered from any
86 source or altered source distribution.
87
88The Contributing Authors and Group 42, Inc. specifically permit, without
89fee, and encourage the use of this source code as a component to
90supporting the PNG file format in commercial products. If you use this
91source code in a product, acknowledgment is not required but would be
92appreciated.
93
94END OF COPYRIGHT NOTICE, DISCLAIMER, and LICENSE.
95
96A "png_get_copyright" function is available, for convenient use in "about"
97boxes and the like:
98
99 printf("%s", png_get_copyright(NULL));
100
101Also, the PNG logo (in PNG format, of course) is supplied in the
102files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
103
104Libpng is OSI Certified Open Source Software. OSI Certified Open Source is
105a certification mark of the Open Source Initiative. OSI has not addressed
106the additional disclaimers inserted at version 1.0.7.
107
108Glenn Randers-Pehrson
109glennrp at users.sourceforge.net
110November 12, 2015
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