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1 | GNU GENERAL PUBLIC LICENSE |
2 | Version 1, February 1989 | |
3 | ||
4 | Copyright (C) 1989 Free Software Foundation, Inc. | |
8d814b80 | 5 | 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA |
a687059c LW |
6 | Everyone is permitted to copy and distribute verbatim copies |
7 | of this license document, but changing it is not allowed. | |
8 | ||
9 | Preamble | |
10 | ||
11 | The license agreements of most software companies try to keep users | |
12 | at the mercy of those companies. By contrast, our General Public | |
13 | License is intended to guarantee your freedom to share and change free | |
14 | software--to make sure the software is free for all its users. The | |
15 | General Public License applies to the Free Software Foundation's | |
16 | software and to any other program whose authors commit to using it. | |
17 | You can use it for your programs, too. | |
18 | ||
19 | When we speak of free software, we are referring to freedom, not | |
20 | price. Specifically, the General Public License is designed to make | |
21 | sure that you have the freedom to give away or sell copies of free | |
22 | software, that you receive source code or can get it if you want it, | |
23 | that you can change the software or use pieces of it in new free | |
24 | programs; and that you know you can do these things. | |
25 | ||
26 | To protect your rights, we need to make restrictions that forbid | |
27 | anyone to deny you these rights or to ask you to surrender the rights. | |
28 | These restrictions translate to certain responsibilities for you if you | |
29 | distribute copies of the software, or if you modify it. | |
30 | ||
31 | For example, if you distribute copies of a such a program, whether | |
32 | gratis or for a fee, you must give the recipients all the rights that | |
33 | you have. You must make sure that they, too, receive or can get the | |
34 | source code. And you must tell them their rights. | |
35 | ||
36 | We protect your rights with two steps: (1) copyright the software, and | |
37 | (2) offer you this license which gives you legal permission to copy, | |
38 | distribute and/or modify the software. | |
39 | ||
40 | Also, for each author's protection and ours, we want to make certain | |
41 | that everyone understands that there is no warranty for this free | |
42 | software. If the software is modified by someone else and passed on, we | |
43 | want its recipients to know that what they have is not the original, so | |
44 | that any problems introduced by others will not reflect on the original | |
45 | authors' reputations. | |
46 | ||
47 | The precise terms and conditions for copying, distribution and | |
48 | modification follow. | |
49 | \f | |
50 | GNU GENERAL PUBLIC LICENSE | |
51 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
52 | ||
53 | 0. This License Agreement applies to any program or other work which | |
54 | contains a notice placed by the copyright holder saying it may be | |
55 | distributed under the terms of this General Public License. The | |
56 | "Program", below, refers to any such program or work, and a "work based | |
57 | on the Program" means either the Program or any work containing the | |
58 | Program or a portion of it, either verbatim or with modifications. Each | |
59 | licensee is addressed as "you". | |
60 | ||
61 | 1. You may copy and distribute verbatim copies of the Program's source | |
62 | code as you receive it, in any medium, provided that you conspicuously and | |
63 | appropriately publish on each copy an appropriate copyright notice and | |
64 | disclaimer of warranty; keep intact all the notices that refer to this | |
65 | General Public License and to the absence of any warranty; and give any | |
66 | other recipients of the Program a copy of this General Public License | |
67 | along with the Program. You may charge a fee for the physical act of | |
68 | transferring a copy. | |
69 | ||
70 | 2. You may modify your copy or copies of the Program or any portion of | |
71 | it, and copy and distribute such modifications under the terms of Paragraph | |
72 | 1 above, provided that you also do the following: | |
73 | ||
74 | a) cause the modified files to carry prominent notices stating that | |
75 | you changed the files and the date of any change; and | |
76 | ||
77 | b) cause the whole of any work that you distribute or publish, that | |
78 | in whole or in part contains the Program or any part thereof, either | |
79 | with or without modifications, to be licensed at no charge to all | |
80 | third parties under the terms of this General Public License (except | |
81 | that you may choose to grant warranty protection to some or all | |
82 | third parties, at your option). | |
83 | ||
84 | c) If the modified program normally reads commands interactively when | |
85 | run, you must cause it, when started running for such interactive use | |
86 | in the simplest and most usual way, to print or display an | |
87 | announcement including an appropriate copyright notice and a notice | |
88 | that there is no warranty (or else, saying that you provide a | |
89 | warranty) and that users may redistribute the program under these | |
90 | conditions, and telling the user how to view a copy of this General | |
91 | Public License. | |
92 | ||
93 | d) You may charge a fee for the physical act of transferring a | |
94 | copy, and you may at your option offer warranty protection in | |
95 | exchange for a fee. | |
96 | ||
97 | Mere aggregation of another independent work with the Program (or its | |
98 | derivative) on a volume of a storage or distribution medium does not bring | |
99 | the other work under the scope of these terms. | |
100 | \f | |
101 | 3. You may copy and distribute the Program (or a portion or derivative of | |
102 | it, under Paragraph 2) in object code or executable form under the terms of | |
103 | Paragraphs 1 and 2 above provided that you also do one of the following: | |
104 | ||
105 | a) accompany it with the complete corresponding machine-readable | |
106 | source code, which must be distributed under the terms of | |
107 | Paragraphs 1 and 2 above; or, | |
108 | ||
109 | b) accompany it with a written offer, valid for at least three | |
110 | years, to give any third party free (except for a nominal charge | |
111 | for the cost of distribution) a complete machine-readable copy of the | |
112 | corresponding source code, to be distributed under the terms of | |
113 | Paragraphs 1 and 2 above; or, | |
114 | ||
115 | c) accompany it with the information you received as to where the | |
116 | corresponding source code may be obtained. (This alternative is | |
117 | allowed only for noncommercial distribution and only if you | |
118 | received the program in object code or executable form alone.) | |
119 | ||
120 | Source code for a work means the preferred form of the work for making | |
121 | modifications to it. For an executable file, complete source code means | |
122 | all the source code for all modules it contains; but, as a special | |
123 | exception, it need not include source code for modules which are standard | |
124 | libraries that accompany the operating system on which the executable | |
125 | file runs, or for standard header files or definitions files that | |
126 | accompany that operating system. | |
127 | ||
128 | 4. You may not copy, modify, sublicense, distribute or transfer the | |
129 | Program except as expressly provided under this General Public License. | |
130 | Any attempt otherwise to copy, modify, sublicense, distribute or transfer | |
131 | the Program is void, and will automatically terminate your rights to use | |
132 | the Program under this License. However, parties who have received | |
133 | copies, or rights to use copies, from you under this General Public | |
134 | License will not have their licenses terminated so long as such parties | |
135 | remain in full compliance. | |
136 | ||
137 | 5. By copying, distributing or modifying the Program (or any work based | |
138 | on the Program) you indicate your acceptance of this license to do so, | |
139 | and all its terms and conditions. | |
140 | ||
141 | 6. Each time you redistribute the Program (or any work based on the | |
142 | Program), the recipient automatically receives a license from the original | |
143 | licensor to copy, distribute or modify the Program subject to these | |
144 | terms and conditions. You may not impose any further restrictions on the | |
145 | recipients' exercise of the rights granted herein. | |
146 | \f | |
147 | 7. The Free Software Foundation may publish revised and/or new versions | |
148 | of the General Public License from time to time. Such new versions will | |
149 | be similar in spirit to the present version, but may differ in detail to | |
150 | address new problems or concerns. | |
151 | ||
152 | Each version is given a distinguishing version number. If the Program | |
153 | specifies a version number of the license which applies to it and "any | |
154 | later version", you have the option of following the terms and conditions | |
155 | either of that version or of any later version published by the Free | |
156 | Software Foundation. If the Program does not specify a version number of | |
157 | the license, you may choose any version ever published by the Free Software | |
158 | Foundation. | |
159 | ||
160 | 8. If you wish to incorporate parts of the Program into other free | |
161 | programs whose distribution conditions are different, write to the author | |
162 | to ask for permission. For software which is copyrighted by the Free | |
163 | Software Foundation, write to the Free Software Foundation; we sometimes | |
164 | make exceptions for this. Our decision will be guided by the two goals | |
165 | of preserving the free status of all derivatives of our free software and | |
166 | of promoting the sharing and reuse of software generally. | |
167 | ||
168 | NO WARRANTY | |
169 | ||
170 | 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY | |
171 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN | |
172 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES | |
173 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED | |
174 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
175 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS | |
176 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE | |
177 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, | |
178 | REPAIR OR CORRECTION. | |
179 | ||
180 | 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | |
181 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR | |
182 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | |
183 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING | |
184 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED | |
185 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY | |
186 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER | |
187 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE | |
188 | POSSIBILITY OF SUCH DAMAGES. | |
189 | ||
190 | END OF TERMS AND CONDITIONS | |
191 | \f | |
192 | Appendix: How to Apply These Terms to Your New Programs | |
193 | ||
194 | If you develop a new program, and you want it to be of the greatest | |
195 | possible use to humanity, the best way to achieve this is to make it | |
196 | free software which everyone can redistribute and change under these | |
197 | terms. | |
198 | ||
199 | To do so, attach the following notices to the program. It is safest to | |
200 | attach them to the start of each source file to most effectively convey | |
201 | the exclusion of warranty; and each file should have at least the | |
202 | "copyright" line and a pointer to where the full notice is found. | |
203 | ||
204 | <one line to give the program's name and a brief idea of what it does.> | |
205 | Copyright (C) 19yy <name of author> | |
206 | ||
207 | This program is free software; you can redistribute it and/or modify | |
208 | it under the terms of the GNU General Public License as published by | |
209 | the Free Software Foundation; either version 1, or (at your option) | |
210 | any later version. | |
211 | ||
212 | This program is distributed in the hope that it will be useful, | |
213 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
214 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
215 | GNU General Public License for more details. | |
216 | ||
217 | You should have received a copy of the GNU General Public License | |
8d814b80 GS |
218 | along with this program; if not, write to the Free Software Foundation, |
219 | Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. | |
a687059c LW |
220 | |
221 | Also add information on how to contact you by electronic and paper mail. | |
222 | ||
223 | If the program is interactive, make it output a short notice like this | |
224 | when it starts in an interactive mode: | |
225 | ||
226 | Gnomovision version 69, Copyright (C) 19xx name of author | |
227 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. | |
228 | This is free software, and you are welcome to redistribute it | |
229 | under certain conditions; type `show c' for details. | |
230 | ||
231 | The hypothetical commands `show w' and `show c' should show the | |
232 | appropriate parts of the General Public License. Of course, the | |
233 | commands you use may be called something other than `show w' and `show | |
234 | c'; they could even be mouse-clicks or menu items--whatever suits your | |
235 | program. | |
236 | ||
237 | You should also get your employer (if you work as a programmer) or your | |
238 | school, if any, to sign a "copyright disclaimer" for the program, if | |
239 | necessary. Here a sample; alter the names: | |
240 | ||
241 | Yoyodyne, Inc., hereby disclaims all copyright interest in the | |
242 | program `Gnomovision' (a program to direct compilers to make passes | |
243 | at assemblers) written by James Hacker. | |
244 | ||
245 | <signature of Ty Coon>, 1 April 1989 | |
246 | Ty Coon, President of Vice | |
247 | ||
248 | That's all there is to it! |