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1 GNU GENERAL PUBLIC LICENSE | 1 GNU GENERAL PUBLIC LICENSE |
2 Version 2, June 1991 | 2 Version 2, June 1991 |
3 | 3 |
4 Copyright (C) 1989, 1991 Free Software Foundation, Inc., | 4 Copyright (C) 1989, 1991 Free Software Foundation, Inc. |
5 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | 5 » 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
6 Everyone is permitted to copy and distribute verbatim copies | 6 Everyone is permitted to copy and distribute verbatim copies |
7 of this license document, but changing it is not allowed. | 7 of this license document, but changing it is not allowed. |
8 | 8 |
9 Preamble | 9 Preamble |
10 | 10 |
11 The licenses for most software are designed to take away your | 11 The licenses for most software are designed to take away your |
12 freedom to share and change it. By contrast, the GNU General Public | 12 freedom to share and change it. By contrast, the GNU General Public |
13 License is intended to guarantee your freedom to share and change free | 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. This | 14 software--to make sure the software is free for all its users. This |
15 General Public License applies to most of the Free Software | 15 General Public License applies to most of the Free Software |
16 Foundation's software and to any other program whose authors commit to | 16 Foundation's software and to any other program whose authors commit to |
17 using it. (Some other Free Software Foundation software is covered by | 17 using it. (Some other Free Software Foundation software is covered by |
18 the GNU Lesser General Public License instead.) You can apply it to | 18 the GNU Library General Public License instead.) You can apply it to |
19 your programs, too. | 19 your programs, too. |
20 | 20 |
21 When we speak of free software, we are referring to freedom, not | 21 When we speak of free software, we are referring to freedom, not |
22 price. Our General Public Licenses are designed to make sure that you | 22 price. Our General Public Licenses are designed to make sure that you |
23 have the freedom to distribute copies of free software (and charge for | 23 have the freedom to distribute copies of free software (and charge for |
24 this service if you wish), that you receive source code or can get it | 24 this service if you wish), that you receive source code or can get it |
25 if you want it, that you can change the software or use pieces of it | 25 if you want it, that you can change the software or use pieces of it |
26 in new free programs; and that you know you can do these things. | 26 in new free programs; and that you know you can do these things. |
27 | 27 |
28 To protect your rights, we need to make restrictions that forbid | 28 To protect your rights, we need to make restrictions that forbid |
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48 authors' reputations. | 48 authors' reputations. |
49 | 49 |
50 Finally, any free program is threatened constantly by software | 50 Finally, any free program is threatened constantly by software |
51 patents. We wish to avoid the danger that redistributors of a free | 51 patents. We wish to avoid the danger that redistributors of a free |
52 program will individually obtain patent licenses, in effect making the | 52 program will individually obtain patent licenses, in effect making the |
53 program proprietary. To prevent this, we have made it clear that any | 53 program proprietary. To prevent this, we have made it clear that any |
54 patent must be licensed for everyone's free use or not licensed at all. | 54 patent must be licensed for everyone's free use or not licensed at all. |
55 | 55 |
56 The precise terms and conditions for copying, distribution and | 56 The precise terms and conditions for copying, distribution and |
57 modification follow. | 57 modification follow. |
58 | 58 |
59 GNU GENERAL PUBLIC LICENSE | 59 GNU GENERAL PUBLIC LICENSE |
60 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | 60 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION |
61 | 61 |
62 0. This License applies to any program or other work which contains | 62 0. This License applies to any program or other work which contains |
63 a notice placed by the copyright holder saying it may be distributed | 63 a notice placed by the copyright holder saying it may be distributed |
64 under the terms of this General Public License. The "Program", below, | 64 under the terms of this General Public License. The "Program", below, |
65 refers to any such program or work, and a "work based on the Program" | 65 refers to any such program or work, and a "work based on the Program" |
66 means either the Program or any derivative work under copyright law: | 66 means either the Program or any derivative work under copyright law: |
67 that is to say, a work containing the Program or a portion of it, | 67 that is to say, a work containing the Program or a portion of it, |
68 either verbatim or with modifications and/or translated into another | 68 either verbatim or with modifications and/or translated into another |
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103 c) If the modified program normally reads commands interactively | 103 c) If the modified program normally reads commands interactively |
104 when run, you must cause it, when started running for such | 104 when run, you must cause it, when started running for such |
105 interactive use in the most ordinary way, to print or display an | 105 interactive use in the most ordinary way, to print or display an |
106 announcement including an appropriate copyright notice and a | 106 announcement including an appropriate copyright notice and a |
107 notice that there is no warranty (or else, saying that you provide | 107 notice that there is no warranty (or else, saying that you provide |
108 a warranty) and that users may redistribute the program under | 108 a warranty) and that users may redistribute the program under |
109 these conditions, and telling the user how to view a copy of this | 109 these conditions, and telling the user how to view a copy of this |
110 License. (Exception: if the Program itself is interactive but | 110 License. (Exception: if the Program itself is interactive but |
111 does not normally print such an announcement, your work based on | 111 does not normally print such an announcement, your work based on |
112 the Program is not required to print an announcement.) | 112 the Program is not required to print an announcement.) |
113 | 113 |
114 These requirements apply to the modified work as a whole. If | 114 These requirements apply to the modified work as a whole. If |
115 identifiable sections of that work are not derived from the Program, | 115 identifiable sections of that work are not derived from the Program, |
116 and can be reasonably considered independent and separate works in | 116 and can be reasonably considered independent and separate works in |
117 themselves, then this License, and its terms, do not apply to those | 117 themselves, then this License, and its terms, do not apply to those |
118 sections when you distribute them as separate works. But when you | 118 sections when you distribute them as separate works. But when you |
119 distribute the same sections as part of a whole which is a work based | 119 distribute the same sections as part of a whole which is a work based |
120 on the Program, the distribution of the whole must be on the terms of | 120 on the Program, the distribution of the whole must be on the terms of |
121 this License, whose permissions for other licensees extend to the | 121 this License, whose permissions for other licensees extend to the |
122 entire whole, and thus to each and every part regardless of who wrote it. | 122 entire whole, and thus to each and every part regardless of who wrote it. |
123 | 123 |
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161 anything that is normally distributed (in either source or binary | 161 anything that is normally distributed (in either source or binary |
162 form) with the major components (compiler, kernel, and so on) of the | 162 form) with the major components (compiler, kernel, and so on) of the |
163 operating system on which the executable runs, unless that component | 163 operating system on which the executable runs, unless that component |
164 itself accompanies the executable. | 164 itself accompanies the executable. |
165 | 165 |
166 If distribution of executable or object code is made by offering | 166 If distribution of executable or object code is made by offering |
167 access to copy from a designated place, then offering equivalent | 167 access to copy from a designated place, then offering equivalent |
168 access to copy the source code from the same place counts as | 168 access to copy the source code from the same place counts as |
169 distribution of the source code, even though third parties are not | 169 distribution of the source code, even though third parties are not |
170 compelled to copy the source along with the object code. | 170 compelled to copy the source along with the object code. |
171 | 171 |
172 4. You may not copy, modify, sublicense, or distribute the Program | 172 4. You may not copy, modify, sublicense, or distribute the Program |
173 except as expressly provided under this License. Any attempt | 173 except as expressly provided under this License. Any attempt |
174 otherwise to copy, modify, sublicense or distribute the Program is | 174 otherwise to copy, modify, sublicense or distribute the Program is |
175 void, and will automatically terminate your rights under this License. | 175 void, and will automatically terminate your rights under this License. |
176 However, parties who have received copies, or rights, from you under | 176 However, parties who have received copies, or rights, from you under |
177 this License will not have their licenses terminated so long as such | 177 this License will not have their licenses terminated so long as such |
178 parties remain in full compliance. | 178 parties remain in full compliance. |
179 | 179 |
180 5. You are not required to accept this License, since you have not | 180 5. You are not required to accept this License, since you have not |
181 signed it. However, nothing else grants you permission to modify or | 181 signed it. However, nothing else grants you permission to modify or |
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218 integrity of the free software distribution system, which is | 218 integrity of the free software distribution system, which is |
219 implemented by public license practices. Many people have made | 219 implemented by public license practices. Many people have made |
220 generous contributions to the wide range of software distributed | 220 generous contributions to the wide range of software distributed |
221 through that system in reliance on consistent application of that | 221 through that system in reliance on consistent application of that |
222 system; it is up to the author/donor to decide if he or she is willing | 222 system; it is up to the author/donor to decide if he or she is willing |
223 to distribute software through any other system and a licensee cannot | 223 to distribute software through any other system and a licensee cannot |
224 impose that choice. | 224 impose that choice. |
225 | 225 |
226 This section is intended to make thoroughly clear what is believed to | 226 This section is intended to make thoroughly clear what is believed to |
227 be a consequence of the rest of this License. | 227 be a consequence of the rest of this License. |
228 | 228 |
229 8. If the distribution and/or use of the Program is restricted in | 229 8. If the distribution and/or use of the Program is restricted in |
230 certain countries either by patents or by copyrighted interfaces, the | 230 certain countries either by patents or by copyrighted interfaces, the |
231 original copyright holder who places the Program under this License | 231 original copyright holder who places the Program under this License |
232 may add an explicit geographical distribution limitation excluding | 232 may add an explicit geographical distribution limitation excluding |
233 those countries, so that distribution is permitted only in or among | 233 those countries, so that distribution is permitted only in or among |
234 countries not thus excluded. In such case, this License incorporates | 234 countries not thus excluded. In such case, this License incorporates |
235 the limitation as if written in the body of this License. | 235 the limitation as if written in the body of this License. |
236 | 236 |
237 9. The Free Software Foundation may publish revised and/or new versions | 237 9. The Free Software Foundation may publish revised and/or new versions |
238 of the General Public License from time to time. Such new versions will | 238 of the General Public License from time to time. Such new versions will |
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271 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR | 271 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR |
272 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | 272 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, |
273 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING | 273 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING |
274 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED | 274 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED |
275 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY | 275 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY |
276 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER | 276 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER |
277 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE | 277 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE |
278 POSSIBILITY OF SUCH DAMAGES. | 278 POSSIBILITY OF SUCH DAMAGES. |
279 | 279 |
280 END OF TERMS AND CONDITIONS | 280 END OF TERMS AND CONDITIONS |
281 | 281 |
282 How to Apply These Terms to Your New Programs | 282 How to Apply These Terms to Your New Programs |
283 | 283 |
284 If you develop a new program, and you want it to be of the greatest | 284 If you develop a new program, and you want it to be of the greatest |
285 possible use to the public, the best way to achieve this is to make it | 285 possible use to the public, the best way to achieve this is to make it |
286 free software which everyone can redistribute and change under these terms. | 286 free software which everyone can redistribute and change under these terms. |
287 | 287 |
288 To do so, attach the following notices to the program. It is safest | 288 To do so, attach the following notices to the program. It is safest |
289 to attach them to the start of each source file to most effectively | 289 to attach them to the start of each source file to most effectively |
290 convey the exclusion of warranty; and each file should have at least | 290 convey the exclusion of warranty; and each file should have at least |
291 the "copyright" line and a pointer to where the full notice is found. | 291 the "copyright" line and a pointer to where the full notice is found. |
292 | 292 |
293 <one line to give the program's name and a brief idea of what it does.> | 293 <one line to give the program's name and a brief idea of what it does.> |
294 Copyright (C) <year> <name of author> | 294 Copyright (C) <year> <name of author> |
295 | 295 |
296 This program is free software; you can redistribute it and/or modify | 296 This program is free software; you can redistribute it and/or modify |
297 it under the terms of the GNU General Public License as published by | 297 it under the terms of the GNU General Public License as published by |
298 the Free Software Foundation; either version 2 of the License, or | 298 the Free Software Foundation; either version 2 of the License, or |
299 (at your option) any later version. | 299 (at your option) any later version. |
300 | 300 |
301 This program is distributed in the hope that it will be useful, | 301 This program is distributed in the hope that it will be useful, |
302 but WITHOUT ANY WARRANTY; without even the implied warranty of | 302 but WITHOUT ANY WARRANTY; without even the implied warranty of |
303 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 303 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
304 GNU General Public License for more details. | 304 GNU General Public License for more details. |
305 | 305 |
306 You should have received a copy of the GNU General Public License along | 306 You should have received a copy of the GNU General Public License |
307 with this program; if not, write to the Free Software Foundation, Inc., | 307 along with this program; if not, write to the Free Software |
308 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | 308 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 309 |
309 | 310 |
310 Also add information on how to contact you by electronic and paper mail. | 311 Also add information on how to contact you by electronic and paper mail. |
311 | 312 |
312 If the program is interactive, make it output a short notice like this | 313 If the program is interactive, make it output a short notice like this |
313 when it starts in an interactive mode: | 314 when it starts in an interactive mode: |
314 | 315 |
315 Gnomovision version 69, Copyright (C) year name of author | 316 Gnomovision version 69, Copyright (C) year name of author |
316 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. | 317 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. |
317 This is free software, and you are welcome to redistribute it | 318 This is free software, and you are welcome to redistribute it |
318 under certain conditions; type `show c' for details. | 319 under certain conditions; type `show c' for details. |
319 | 320 |
320 The hypothetical commands `show w' and `show c' should show the appropriate | 321 The hypothetical commands `show w' and `show c' should show the appropriate |
321 parts of the General Public License. Of course, the commands you use may | 322 parts of the General Public License. Of course, the commands you use may |
322 be called something other than `show w' and `show c'; they could even be | 323 be called something other than `show w' and `show c'; they could even be |
323 mouse-clicks or menu items--whatever suits your program. | 324 mouse-clicks or menu items--whatever suits your program. |
324 | 325 |
325 You should also get your employer (if you work as a programmer) or your | 326 You should also get your employer (if you work as a programmer) or your |
326 school, if any, to sign a "copyright disclaimer" for the program, if | 327 school, if any, to sign a "copyright disclaimer" for the program, if |
327 necessary. Here is a sample; alter the names: | 328 necessary. Here is a sample; alter the names: |
328 | 329 |
329 Yoyodyne, Inc., hereby disclaims all copyright interest in the program | 330 Yoyodyne, Inc., hereby disclaims all copyright interest in the program |
330 `Gnomovision' (which makes passes at compilers) written by James Hacker. | 331 `Gnomovision' (which makes passes at compilers) written by James Hacker. |
331 | 332 |
332 <signature of Ty Coon>, 1 April 1989 | 333 <signature of Ty Coon>, 1 April 1989 |
333 Ty Coon, President of Vice | 334 Ty Coon, President of Vice |
334 | 335 |
335 This General Public License does not permit incorporating your program into | 336 This General Public License does not permit incorporating your program into |
336 proprietary programs. If your program is a subroutine library, you may | 337 proprietary programs. If your program is a subroutine library, you may |
337 consider it more useful to permit linking proprietary applications with the | 338 consider it more useful to permit linking proprietary applications with the |
338 library. If this is what you want to do, use the GNU Lesser General | 339 library. If this is what you want to do, use the GNU Library General |
339 Public License instead of this License. | 340 Public License instead of this License. |
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