BSD 4_3_Net_2 release
[unix-history] / usr / src / games / chess / Xchess / COPYING
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2 GNU X-CHESS GENERAL PUBLIC LICENSE
3
4 Copyright (C) 1986 Free Software Foundation, Inc.
5 Everyone is permitted to copy and distribute verbatim copies
6 of this license, but changing it is not allowed.
7
8 The license agreements of most software companies keep you at the
9mercy of those companies. By contrast, our general public license is
10intended to give everyone the right to share GNU X-Chess. To make
11sure that you get the rights we want you to have, we need to make
12restrictions that forbid anyone to deny you these rights or to ask you
13to surrender the rights. Hence this license agreement.
14
15 Specifically, we want to make sure that you have the right to give
16away copies of GNU X-Chess, that you receive source code or else can get it
17if you want it, that you can change GNU X-Chess or use pieces of it in new
18free programs, and that you know you can do these things.
19
20 To make sure that everyone has such rights, we have to forbid you to
21deprive anyone else of these rights. For example, if you distribute
22copies of GNU X-Chess, you must give the recipients all the rights that you
23have. You must make sure that they, too, receive or can get the
24source code. And you must tell them their rights.
25
26 Also, for our own protection, we must make certain that everyone
27finds out that there is no warranty for GNU X-Chess. If GNU X-Chess is
28modified by someone else and passed on, we want its recipients to know
29that what they have is not what we distributed, so that any problems
30introduced by others will not reflect on our reputation.
31
32 Therefore the Free Software Foundation, Inc. makes the following
33terms which say what you must do to be allowed to distribute or change
34GNU X-Chess.
35
36 COPYING POLICIES
37
38 1. You may copy and distribute verbatim copies of GNU X-Chess source
39code as you receive it, in any medium, provided that you conspicuously
40and appropriately publish on each file a valid copyright notice
41"Copyright (C) 1986 Free Software Foundation, Inc.", containing the
42year of last change for the file in question; keep intact the notices
43on all files that refer to this License Agreement and to the absence
44of any warranty; and give any other recipients of the GNU X-Chess
45program a copy of this License Agreement along with the program.
46
47 2. You may modify your copy or copies of GNU X-Chess source code or
48any portion of it, and copy and distribute such modifications under
49the terms of Paragraph 1 above, provided that you also do the following:
50
51 a) cause the modified files to carry prominent notices stating
52 who last changed such files and the date of any change; and
53
54 b) cause the whole of any work that you distribute or publish,
55 that in whole or in part contains or is a derivative of GNU X-Chess
56 or any part thereof, to be freely distributed
57 and licensed to all third parties on terms identical to those
58 contained in this License Agreement (except that you may choose
59 to grant more extensive warranty protection to third parties,
60 at your option).
61
62 c) if the modified program serves as a text editor, cause it
63 when started running in the simplest and usual way, to print
64 an announcement including a valid copyright notice ("Copyright
65 (C)", the year of authorship, and all copyright owners' names),
66 saying that there is no warranty (or else, saying that you provide
67 a warranty) and that users may redistribute the program under
68 these conditions, and telling the user how to view a copy of
69 this License Agreement.
70
71 3. You may copy and distribute GNU X-Chess or any portion of it in
72compiled, executable or object code form under the terms of Paragraphs
731 and 2 above provided that you do the following:
74
75 a) cause each such copy of GNU X-Chess to be accompanied by the
76 corresponding machine-readable source code; or
77
78 b) cause each such copy of GNU X-Chess to be accompanied by a
79 written offer, with no time limit, to give any third party
80 free (except for a nominal shipping charge) machine readable
81 copy of the corresponding source code; or
82
83 c) in the case of a recipient of GNU X-Chess in compiled, executable
84 or object code form (without the corresponding source code) you
85 shall cause copies you distribute to be accompanied by a copy
86 of the written offer of source code which you received along
87 with the copy of GNU X-Chess.
88
89 4. You may not copy, sublicense, distribute or transfer GNU X-Chess
90except as expressly provided under this License Agreement. Any attempt
91otherwise to copy, sublicense, distribute or transfer GNU X-Chess is void and
92your rights to use GNU X-Chess under this License agreement shall be
93automatically terminated. However, parties who have received computer
94software programs from you with this License Agreement will not have
95their licenses terminated so long as such parties remain in full compliance.
96
97Your comments and suggestions about our licensing policies and our
98software are welcome! Please contact the Free Software Foundation, Inc.,
991000 Mass Ave, Cambridge, MA 02138, or call (617) 876-3296.
100
101 NO WARRANTY
102
103 BECAUSE GNU X-CHESS IS LICENSED FREE OF CHARGE, WE PROVIDE ABSOLUTELY
104NO WARRANTY, TO THE EXTENT PERMITTED BY APPLICABLE STATE LAW. EXCEPT
105WHEN OTHERWISE STATED IN WRITING, FREE SOFTWARE FOUNDATION, INC,
106AND/OR OTHER PARTIES PROVIDE GNU X-CHESS "AS IS" WITHOUT WARRANTY OF ANY
107KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
108IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
109PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
110PROGRAM IS WITH YOU. SHOULD THE GNU X-CHESS PROGRAM PROVE DEFECTIVE,
111YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
112
113 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW WILL FREE SOFTWARE
114FOUNDATION, INC., AND/OR ANY OTHER PARTY WHO MAY MODIFY AND
115REDISTRIBUTE GNU X-CHESS AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
116DAMAGES, INCLUDING ANY LOST PROFITS, LOST MONIES, OR OTHER SPECIAL,
117INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR
118INABILITY TO USE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA
119BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY THIRD PARTIES OR A
120FAILURE OF THE PROGRAM TO OPERATE WITH PROGRAMS NOT DISTRIBUTED BY
121FREE SOFTWARE FOUNDATION, INC.) THE PROGRAM, EVEN IF YOU HAVE BEEN
122ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM BY ANY
123OTHER PARTY.
124======================================================================