]>
Commit | Line | Data |
---|---|---|
45dec87e | 1 | Common UNIX Printing System License Agreement |
2 | ||
e338c390 | 3 | Copyright 1997-2001 by Easy Software Products |
45dec87e | 4 | 44141 AIRPORT VIEW DR STE 204 |
5 | HOLLYWOOD, MARYLAND 20636-3111 USA | |
6 | ||
e338c390 | 7 | Voice: +1.301.373.9600 |
45dec87e | 8 | Email: cups-info@cups.org |
9 | WWW: http://www.cups.org | |
10 | ||
5d66e133 | 11 | |
1a7e760e | 12 | INTRODUCTION |
45dec87e | 13 | |
5d66e133 | 14 | The Common UNIX Printing SystemTM, ("CUPSTM"), is provided under the GNU |
1a7e760e | 15 | General Public License ("GPL") and GNU Library General Public License |
16 | ("LGPL"), Version 2. A copy of these licenses follow this introduction. | |
45dec87e | 17 | |
1a7e760e | 18 | The GNU LGPL applies to the CUPS API library, located in the "cups" |
19 | subdirectory of the CUPS source distribution and in the "/usr/include/cups" | |
5d66e133 | 20 | directory and "libcups.a", "libcups.sl", or "libcups.so" files in the binary |
21 | distributions. | |
45dec87e | 22 | |
1a7e760e | 23 | The GNU GPL applies to the remainder of the CUPS distribution, including the |
5d66e133 | 24 | "pstoraster" filter which is based upon GNU Ghostscript 5.50 and the |
7159de3d | 25 | "pdftops" filter which is based upon Xpdf 0.92. |
1a7e760e | 26 | |
27 | For those not familiar with the GNU GPL, the license basically allows you | |
28 | to: | |
29 | ||
5d66e133 | 30 | - Use the CUPS software at no charge. |
31 | - Distribute verbatim copies of the software in source or binary form. | |
32 | - Sell verbatim copies of the software for a media fee, or sell support | |
45dec87e | 33 | for the software. |
5d66e133 | 34 | - Distribute or sell printer drivers and filters that use CUPS so long as |
35 | source code is made available under the GPL. | |
45dec87e | 36 | |
37 | What this license does not allow you to do is make changes or add features | |
1a7e760e | 38 | to CUPS and then sell a binary distribution without source code. You must |
86395b64 | 39 | provide source for any new drivers, changes, or additions to the software, |
5d66e133 | 40 | and all code must be provided under the GPL or LGPL as appropriate. |
45dec87e | 41 | |
1a7e760e | 42 | The GNU LGPL relaxes the "link-to" restriction, allowing you to develop |
43 | applications that use the CUPS API library under other licenses and/or | |
44 | conditions as appropriate for your application. | |
45 | ||
46 | ||
47 | TRADEMARKS | |
48 | ||
49 | Easy Software Products has trademarked the Common UNIX Printing System, | |
50 | CUPS, and CUPS logo. These names and logos may be used freely in any direct | |
51 | port or binary distribution of CUPS. To use them in derivative products, | |
52 | please contract Easy Software Products for written permission. Our intention | |
53 | is to protect the value of these trademarks and ensure that any derivative | |
54 | product meets the same high-quality standards as the original. | |
45dec87e | 55 | |
1a7e760e | 56 | |
57 | BINARY DISTRIBUTION RIGHTS | |
45dec87e | 58 | |
86395b64 | 59 | Easy Software Products also sells rights to the CUPS source code under a |
60 | binary distribution license for vendors that are unable to release source | |
1a7e760e | 61 | code for their drivers, additions, and modifications to CUPS under the GNU |
5d66e133 | 62 | GPL and LGPL. For information please contact us at the address shown above. |
45dec87e | 63 | |
1a7e760e | 64 | The Common UNIX Printing System provides a "pstoraster" filter that utilizes |
5d66e133 | 65 | the GNU GhostScript 5.50 core to convert PostScript files into a stream of |
66 | raster images. For binary distribution licensing of this software, please | |
67 | contact: | |
45dec87e | 68 | |
69 | Miles Jones | |
70 | Director of Marketing | |
71 | Artifex Software Inc. | |
72 | 454 Las Gallinas Ave., Suite 108 | |
73 | San Rafael, CA 94903 USA | |
74 | Voice: +1.415.492.9861 | |
75 | Fax: +1.415.492.9862 | |
76 | EMail: info@arsoft.com | |
77 | ||
7159de3d | 78 | The "pdftops" filter is based on the Xpdf 0.92 software. For binary |
5d66e133 | 79 | distribution licensing of this software, please contact: |
80 | ||
81 | Derek B. Noonburg | |
82 | Email: derekn@foolabs.com | |
83 | WWW: http://www.foolabs.com/xpdf/ | |
84 | ||
45dec87e | 85 | |
1a7e760e | 86 | SUPPORT |
45dec87e | 87 | |
1a7e760e | 88 | Easy Software Products sells software support for CUPS as well as a |
89 | commercial printing product based on CUPS called ESP Print Pro. You can find | |
90 | out more at our web site: | |
45dec87e | 91 | |
1a7e760e | 92 | http://www.easysw.com |
0beadd9e | 93 | \f |
94 | GNU GENERAL PUBLIC LICENSE | |
95 | Version 2, June 1991 | |
45dec87e | 96 | |
0beadd9e | 97 | Copyright (C) 1989, 1991 Free Software Foundation, Inc. |
98 | 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
99 | Everyone is permitted to copy and distribute verbatim copies | |
100 | of this license document, but changing it is not allowed. | |
45dec87e | 101 | |
0beadd9e | 102 | Preamble |
45dec87e | 103 | |
0beadd9e | 104 | The licenses for most software are designed to take away your |
1a7e760e | 105 | freedom to share and change it. By contrast, the GNU General Public |
106 | License is intended to guarantee your freedom to share and change free | |
107 | software--to make sure the software is free for all its users. This | |
108 | General Public License applies to most of the Free Software | |
109 | Foundation's software and to any other program whose authors commit to | |
110 | using it. (Some other Free Software Foundation software is covered by | |
111 | the GNU Library General Public License instead.) You can apply it to | |
112 | your programs, too. | |
113 | ||
0beadd9e | 114 | When we speak of free software, we are referring to freedom, not |
1a7e760e | 115 | price. Our General Public Licenses are designed to make sure that you |
116 | have the freedom to distribute copies of free software (and charge for | |
117 | this service if you wish), that you receive source code or can get it | |
118 | if you want it, that you can change the software or use pieces of it | |
119 | in new free programs; and that you know you can do these things. | |
120 | ||
0beadd9e | 121 | To protect your rights, we need to make restrictions that forbid |
1a7e760e | 122 | anyone to deny you these rights or to ask you to surrender the rights. |
123 | These restrictions translate to certain responsibilities for you if you | |
124 | distribute copies of the software, or if you modify it. | |
125 | ||
0beadd9e | 126 | For example, if you distribute copies of such a program, whether |
1a7e760e | 127 | gratis or for a fee, you must give the recipients all the rights that |
128 | you have. You must make sure that they, too, receive or can get the | |
129 | source code. And you must show them these terms so they know their | |
130 | rights. | |
131 | ||
0beadd9e | 132 | We protect your rights with two steps: (1) copyright the software, and |
1a7e760e | 133 | (2) offer you this license which gives you legal permission to copy, |
134 | distribute and/or modify the software. | |
135 | ||
0beadd9e | 136 | Also, for each author's protection and ours, we want to make certain |
1a7e760e | 137 | that everyone understands that there is no warranty for this free |
138 | software. If the software is modified by someone else and passed on, we | |
139 | want its recipients to know that what they have is not the original, so | |
140 | that any problems introduced by others will not reflect on the original | |
141 | authors' reputations. | |
142 | ||
0beadd9e | 143 | Finally, any free program is threatened constantly by software |
1a7e760e | 144 | patents. We wish to avoid the danger that redistributors of a free |
145 | program will individually obtain patent licenses, in effect making the | |
146 | program proprietary. To prevent this, we have made it clear that any | |
147 | patent must be licensed for everyone's free use or not licensed at all. | |
148 | ||
0beadd9e | 149 | The precise terms and conditions for copying, distribution and |
1a7e760e | 150 | modification follow. |
0beadd9e | 151 | \f |
152 | GNU GENERAL PUBLIC LICENSE | |
153 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
154 | ||
155 | 0. This License applies to any program or other work which contains | |
156 | a notice placed by the copyright holder saying it may be distributed | |
157 | under the terms of this General Public License. The "Program", below, | |
158 | refers to any such program or work, and a "work based on the Program" | |
159 | means either the Program or any derivative work under copyright law: | |
160 | that is to say, a work containing the Program or a portion of it, | |
161 | either verbatim or with modifications and/or translated into another | |
162 | language. (Hereinafter, translation is included without limitation in | |
163 | the term "modification".) Each licensee is addressed as "you". | |
164 | ||
165 | Activities other than copying, distribution and modification are not | |
166 | covered by this License; they are outside its scope. The act of | |
167 | running the Program is not restricted, and the output from the Program | |
168 | is covered only if its contents constitute a work based on the | |
169 | Program (independent of having been made by running the Program). | |
170 | Whether that is true depends on what the Program does. | |
171 | ||
172 | 1. You may copy and distribute verbatim copies of the Program's | |
1a7e760e | 173 | source code as you receive it, in any medium, provided that you |
174 | conspicuously and appropriately publish on each copy an appropriate | |
0beadd9e | 175 | copyright notice and disclaimer of warranty; keep intact all the |
176 | notices that refer to this License and to the absence of any warranty; | |
177 | and give any other recipients of the Program a copy of this License | |
178 | along with the Program. | |
179 | ||
180 | You may charge a fee for the physical act of transferring a copy, and | |
181 | you may at your option offer warranty protection in exchange for a fee. | |
182 | ||
183 | 2. You may modify your copy or copies of the Program or any portion | |
184 | of it, thus forming a work based on the Program, and copy and | |
185 | distribute such modifications or work under the terms of Section 1 | |
186 | above, provided that you also meet all of these conditions: | |
187 | ||
188 | a) You must cause the modified files to carry prominent notices | |
189 | stating that you changed the files and the date of any change. | |
190 | ||
191 | b) You must cause any work that you distribute or publish, that in | |
192 | whole or in part contains or is derived from the Program or any | |
193 | part thereof, to be licensed as a whole at no charge to all third | |
194 | parties under the terms of this License. | |
195 | ||
196 | c) If the modified program normally reads commands interactively | |
197 | when run, you must cause it, when started running for such | |
198 | interactive use in the most ordinary way, to print or display an | |
199 | announcement including an appropriate copyright notice and a | |
200 | notice that there is no warranty (or else, saying that you provide | |
201 | a warranty) and that users may redistribute the program under | |
202 | these conditions, and telling the user how to view a copy of this | |
203 | License. (Exception: if the Program itself is interactive but | |
204 | does not normally print such an announcement, your work based on | |
205 | the Program is not required to print an announcement.) | |
206 | \f | |
207 | These requirements apply to the modified work as a whole. If | |
208 | identifiable sections of that work are not derived from the Program, | |
209 | and can be reasonably considered independent and separate works in | |
210 | themselves, then this License, and its terms, do not apply to those | |
211 | sections when you distribute them as separate works. But when you | |
212 | distribute the same sections as part of a whole which is a work based | |
213 | on the Program, the distribution of the whole must be on the terms of | |
214 | this License, whose permissions for other licensees extend to the | |
215 | entire whole, and thus to each and every part regardless of who wrote it. | |
216 | ||
217 | Thus, it is not the intent of this section to claim rights or contest | |
218 | your rights to work written entirely by you; rather, the intent is to | |
219 | exercise the right to control the distribution of derivative or | |
220 | collective works based on the Program. | |
221 | ||
222 | In addition, mere aggregation of another work not based on the Program | |
223 | with the Program (or with a work based on the Program) on a volume of | |
224 | a storage or distribution medium does not bring the other work under | |
225 | the scope of this License. | |
226 | ||
227 | 3. You may copy and distribute the Program (or a work based on it, | |
228 | under Section 2) in object code or executable form under the terms of | |
229 | Sections 1 and 2 above provided that you also do one of the following: | |
230 | ||
231 | a) Accompany it with the complete corresponding machine-readable | |
232 | source code, which must be distributed under the terms of Sections | |
233 | 1 and 2 above on a medium customarily used for software interchange; or, | |
234 | ||
235 | b) Accompany it with a written offer, valid for at least three | |
236 | years, to give any third party, for a charge no more than your | |
237 | cost of physically performing source distribution, a complete | |
238 | machine-readable copy of the corresponding source code, to be | |
239 | distributed under the terms of Sections 1 and 2 above on a medium | |
240 | customarily used for software interchange; or, | |
241 | ||
242 | c) Accompany it with the information you received as to the offer | |
243 | to distribute corresponding source code. (This alternative is | |
244 | allowed only for noncommercial distribution and only if you | |
245 | received the program in object code or executable form with such | |
246 | an offer, in accord with Subsection b above.) | |
247 | ||
248 | The source code for a work means the preferred form of the work for | |
249 | making modifications to it. For an executable work, complete source | |
250 | code means all the source code for all modules it contains, plus any | |
251 | associated interface definition files, plus the scripts used to | |
252 | control compilation and installation of the executable. However, as a | |
253 | special exception, the source code distributed need not include | |
254 | anything that is normally distributed (in either source or binary | |
255 | form) with the major components (compiler, kernel, and so on) of the | |
256 | operating system on which the executable runs, unless that component | |
257 | itself accompanies the executable. | |
258 | ||
259 | If distribution of executable or object code is made by offering | |
260 | access to copy from a designated place, then offering equivalent | |
261 | access to copy the source code from the same place counts as | |
262 | distribution of the source code, even though third parties are not | |
263 | compelled to copy the source along with the object code. | |
264 | \f | |
265 | 4. You may not copy, modify, sublicense, or distribute the Program | |
266 | except as expressly provided under this License. Any attempt | |
267 | otherwise to copy, modify, sublicense or distribute the Program is | |
268 | void, and will automatically terminate your rights under this License. | |
269 | However, parties who have received copies, or rights, from you under | |
270 | this License will not have their licenses terminated so long as such | |
271 | parties remain in full compliance. | |
272 | ||
273 | 5. You are not required to accept this License, since you have not | |
274 | signed it. However, nothing else grants you permission to modify or | |
275 | distribute the Program or its derivative works. These actions are | |
276 | prohibited by law if you do not accept this License. Therefore, by | |
277 | modifying or distributing the Program (or any work based on the | |
278 | Program), you indicate your acceptance of this License to do so, and | |
279 | all its terms and conditions for copying, distributing or modifying | |
280 | the Program or works based on it. | |
281 | ||
282 | 6. Each time you redistribute the Program (or any work based on the | |
283 | Program), the recipient automatically receives a license from the | |
284 | original licensor to copy, distribute or modify the Program subject to | |
285 | these terms and conditions. You may not impose any further | |
286 | restrictions on the recipients' exercise of the rights granted herein. | |
287 | You are not responsible for enforcing compliance by third parties to | |
1a7e760e | 288 | this License. |
289 | ||
0beadd9e | 290 | 7. If, as a consequence of a court judgment or allegation of patent |
1a7e760e | 291 | infringement or for any other reason (not limited to patent issues), |
292 | conditions are imposed on you (whether by court order, agreement or | |
293 | otherwise) that contradict the conditions of this License, they do not | |
0beadd9e | 294 | excuse you from the conditions of this License. If you cannot |
295 | distribute so as to satisfy simultaneously your obligations under this | |
296 | License and any other pertinent obligations, then as a consequence you | |
297 | may not distribute the Program at all. For example, if a patent | |
298 | license would not permit royalty-free redistribution of the Program by | |
299 | all those who receive copies directly or indirectly through you, then | |
300 | the only way you could satisfy both it and this License would be to | |
301 | refrain entirely from distribution of the Program. | |
302 | ||
303 | If any portion of this section is held invalid or unenforceable under | |
304 | any particular circumstance, the balance of the section is intended to | |
305 | apply and the section as a whole is intended to apply in other | |
306 | circumstances. | |
307 | ||
308 | It is not the purpose of this section to induce you to infringe any | |
309 | patents or other property right claims or to contest validity of any | |
310 | such claims; this section has the sole purpose of protecting the | |
311 | integrity of the free software distribution system, which is | |
312 | implemented by public license practices. Many people have made | |
313 | generous contributions to the wide range of software distributed | |
314 | through that system in reliance on consistent application of that | |
315 | system; it is up to the author/donor to decide if he or she is willing | |
316 | to distribute software through any other system and a licensee cannot | |
317 | impose that choice. | |
318 | ||
319 | This section is intended to make thoroughly clear what is believed to | |
320 | be a consequence of the rest of this License. | |
321 | \f | |
322 | 8. If the distribution and/or use of the Program is restricted in | |
323 | certain countries either by patents or by copyrighted interfaces, the | |
324 | original copyright holder who places the Program under this License | |
325 | may add an explicit geographical distribution limitation excluding | |
326 | those countries, so that distribution is permitted only in or among | |
327 | countries not thus excluded. In such case, this License incorporates | |
328 | the limitation as if written in the body of this License. | |
329 | ||
330 | 9. The Free Software Foundation may publish revised and/or new versions | |
331 | of the General Public License from time to time. Such new versions will | |
1a7e760e | 332 | be similar in spirit to the present version, but may differ in detail to |
333 | address new problems or concerns. | |
334 | ||
0beadd9e | 335 | Each version is given a distinguishing version number. If the Program |
1a7e760e | 336 | specifies a version number of this License which applies to it and "any |
337 | later version", you have the option of following the terms and conditions | |
338 | either of that version or of any later version published by the Free | |
0beadd9e | 339 | Software Foundation. If the Program does not specify a version number of |
340 | this License, you may choose any version ever published by the Free Software | |
1a7e760e | 341 | Foundation. |
342 | ||
0beadd9e | 343 | 10. If you wish to incorporate parts of the Program into other free |
344 | programs whose distribution conditions are different, write to the author | |
345 | to ask for permission. For software which is copyrighted by the Free | |
1a7e760e | 346 | Software Foundation, write to the Free Software Foundation; we sometimes |
0beadd9e | 347 | make exceptions for this. Our decision will be guided by the two goals |
348 | of preserving the free status of all derivatives of our free software and | |
349 | of promoting the sharing and reuse of software generally. | |
1a7e760e | 350 | |
0beadd9e | 351 | NO WARRANTY |
1a7e760e | 352 | |
0beadd9e | 353 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY |
354 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN | |
1a7e760e | 355 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES |
0beadd9e | 356 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED |
1a7e760e | 357 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
0beadd9e | 358 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS |
359 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE | |
360 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, | |
361 | REPAIR OR CORRECTION. | |
1a7e760e | 362 | |
0beadd9e | 363 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING |
1a7e760e | 364 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR |
0beadd9e | 365 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, |
1a7e760e | 366 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING |
0beadd9e | 367 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED |
368 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY | |
369 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER | |
370 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE | |
1a7e760e | 371 | POSSIBILITY OF SUCH DAMAGES. |
45dec87e | 372 | |
0beadd9e | 373 | END OF TERMS AND CONDITIONS |
374 | \f | |
375 | GNU LIBRARY GENERAL PUBLIC LICENSE | |
376 | Version 2, June 1991 | |
377 | ||
378 | Copyright (C) 1991 Free Software Foundation, Inc. | |
379 | 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
380 | ||
381 | Everyone is permitted to copy and distribute verbatim copies | |
382 | of this license document, but changing it is not allowed. | |
383 | ||
384 | [This is the first released version of the library GPL. It is | |
385 | numbered 2 because it goes with version 2 of the ordinary GPL.] | |
386 | ||
387 | Preamble | |
388 | ||
389 | The licenses for most software are designed to take away your | |
390 | freedom to share and change it. By contrast, the GNU General Public | |
391 | Licenses are intended to guarantee your freedom to share and change | |
392 | free software--to make sure the software is free for all its users. | |
393 | ||
394 | This license, the Library General Public License, applies to some | |
395 | specially designated Free Software Foundation software, and to any | |
396 | other libraries whose authors decide to use it. You can use it for | |
397 | your libraries, too. | |
398 | ||
399 | When we speak of free software, we are referring to freedom, not | |
400 | price. Our General Public Licenses are designed to make sure that you | |
401 | have the freedom to distribute copies of free software (and charge for | |
402 | this service if you wish), that you receive source code or can get it | |
403 | if you want it, that you can change the software or use pieces of it | |
404 | in new free programs; and that you know you can do these things. | |
405 | ||
406 | To protect your rights, we need to make restrictions that forbid | |
407 | anyone to deny you these rights or to ask you to surrender the rights. | |
408 | These restrictions translate to certain responsibilities for you if | |
409 | you distribute copies of the library, or if you modify it. | |
410 | ||
411 | For example, if you distribute copies of the library, whether gratis | |
412 | or for a fee, you must give the recipients all the rights that we gave | |
413 | you. You must make sure that they, too, receive or can get the source | |
414 | code. If you link a program with the library, you must provide | |
415 | complete object files to the recipients so that they can relink them | |
416 | with the library, after making changes to the library and recompiling | |
417 | it. And you must show them these terms so they know their rights. | |
418 | ||
419 | Our method of protecting your rights has two steps: (1) copyright | |
420 | the library, and (2) offer you this license which gives you legal | |
421 | permission to copy, distribute and/or modify the library. | |
422 | ||
423 | Also, for each distributor's protection, we want to make certain | |
424 | that everyone understands that there is no warranty for this free | |
425 | library. If the library is modified by someone else and passed on, we | |
426 | want its recipients to know that what they have is not the original | |
427 | version, so that any problems introduced by others will not reflect on | |
428 | the original authors' reputations. | |
429 | \f | |
430 | Finally, any free program is threatened constantly by software | |
431 | patents. We wish to avoid the danger that companies distributing free | |
432 | software will individually obtain patent licenses, thus in effect | |
433 | transforming the program into proprietary software. To prevent this, | |
434 | we have made it clear that any patent must be licensed for everyone's | |
435 | free use or not licensed at all. | |
436 | ||
437 | Most GNU software, including some libraries, is covered by the ordinary | |
438 | GNU General Public License, which was designed for utility programs. This | |
439 | license, the GNU Library General Public License, applies to certain | |
440 | designated libraries. This license is quite different from the ordinary | |
441 | one; be sure to read it in full, and don't assume that anything in it is | |
442 | the same as in the ordinary license. | |
443 | ||
444 | The reason we have a separate public license for some libraries is that | |
445 | they blur the distinction we usually make between modifying or adding to a | |
446 | program and simply using it. Linking a program with a library, without | |
447 | changing the library, is in some sense simply using the library, and is | |
448 | analogous to running a utility program or application program. However, in | |
449 | a textual and legal sense, the linked executable is a combined work, a | |
450 | derivative of the original library, and the ordinary General Public License | |
451 | treats it as such. | |
452 | ||
453 | Because of this blurred distinction, using the ordinary General | |
454 | Public License for libraries did not effectively promote software | |
455 | sharing, because most developers did not use the libraries. We | |
456 | concluded that weaker conditions might promote sharing better. | |
457 | ||
458 | However, unrestricted linking of non-free programs would deprive the | |
459 | users of those programs of all benefit from the free status of the | |
460 | libraries themselves. This Library General Public License is intended to | |
461 | permit developers of non-free programs to use free libraries, while | |
462 | preserving your freedom as a user of such programs to change the free | |
463 | libraries that are incorporated in them. (We have not seen how to achieve | |
464 | this as regards changes in header files, but we have achieved it as regards | |
465 | changes in the actual functions of the Library.) The hope is that this | |
466 | will lead to faster development of free libraries. | |
467 | ||
468 | The precise terms and conditions for copying, distribution and | |
469 | modification follow. Pay close attention to the difference between a | |
470 | "work based on the library" and a "work that uses the library". The | |
471 | former contains code derived from the library, while the latter only | |
472 | works together with the library. | |
473 | ||
474 | Note that it is possible for a library to be covered by the ordinary | |
475 | General Public License rather than by this special one. | |
476 | \f | |
477 | GNU LIBRARY GENERAL PUBLIC LICENSE | |
478 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
479 | ||
480 | 0. This License Agreement applies to any software library which | |
481 | contains a notice placed by the copyright holder or other authorized | |
482 | party saying it may be distributed under the terms of this Library | |
483 | General Public License (also called "this License"). Each licensee is | |
484 | addressed as "you". | |
485 | ||
486 | A "library" means a collection of software functions and/or data | |
487 | prepared so as to be conveniently linked with application programs | |
488 | (which use some of those functions and data) to form executables. | |
489 | ||
490 | The "Library", below, refers to any such software library or work | |
491 | which has been distributed under these terms. A "work based on the | |
492 | Library" means either the Library or any derivative work under | |
493 | copyright law: that is to say, a work containing the Library or a | |
494 | portion of it, either verbatim or with modifications and/or translated | |
495 | straightforwardly into another language. (Hereinafter, translation is | |
496 | included without limitation in the term "modification".) | |
497 | ||
498 | "Source code" for a work means the preferred form of the work for | |
499 | making modifications to it. For a library, complete source code means | |
500 | all the source code for all modules it contains, plus any associated | |
501 | interface definition files, plus the scripts used to control compilation | |
502 | and installation of the library. | |
503 | ||
504 | Activities other than copying, distribution and modification are not | |
505 | covered by this License; they are outside its scope. The act of | |
506 | running a program using the Library is not restricted, and output from | |
507 | such a program is covered only if its contents constitute a work based | |
508 | on the Library (independent of the use of the Library in a tool for | |
509 | writing it). Whether that is true depends on what the Library does | |
510 | and what the program that uses the Library does. | |
511 | ||
512 | 1. You may copy and distribute verbatim copies of the Library's | |
513 | complete source code as you receive it, in any medium, provided that | |
514 | you conspicuously and appropriately publish on each copy an | |
515 | appropriate copyright notice and disclaimer of warranty; keep intact | |
516 | all the notices that refer to this License and to the absence of any | |
517 | warranty; and distribute a copy of this License along with the | |
518 | Library. | |
519 | ||
520 | You may charge a fee for the physical act of transferring a copy, | |
521 | and you may at your option offer warranty protection in exchange for a | |
522 | fee. | |
523 | \f | |
524 | 2. You may modify your copy or copies of the Library or any portion | |
525 | of it, thus forming a work based on the Library, and copy and | |
526 | distribute such modifications or work under the terms of Section 1 | |
527 | above, provided that you also meet all of these conditions: | |
528 | ||
529 | a) The modified work must itself be a software library. | |
530 | ||
531 | b) You must cause the files modified to carry prominent notices | |
532 | stating that you changed the files and the date of any change. | |
533 | ||
534 | c) You must cause the whole of the work to be licensed at no | |
535 | charge to all third parties under the terms of this License. | |
536 | ||
537 | d) If a facility in the modified Library refers to a function or a | |
538 | table of data to be supplied by an application program that uses | |
539 | the facility, other than as an argument passed when the facility | |
540 | is invoked, then you must make a good faith effort to ensure that, | |
541 | in the event an application does not supply such function or | |
542 | table, the facility still operates, and performs whatever part of | |
543 | its purpose remains meaningful. | |
544 | ||
545 | (For example, a function in a library to compute square roots has | |
546 | a purpose that is entirely well-defined independent of the | |
547 | application. Therefore, Subsection 2d requires that any | |
548 | application-supplied function or table used by this function must | |
549 | be optional: if the application does not supply it, the square | |
550 | root function must still compute square roots.) | |
551 | ||
552 | These requirements apply to the modified work as a whole. If | |
553 | identifiable sections of that work are not derived from the Library, | |
554 | and can be reasonably considered independent and separate works in | |
555 | themselves, then this License, and its terms, do not apply to those | |
556 | sections when you distribute them as separate works. But when you | |
557 | distribute the same sections as part of a whole which is a work based | |
558 | on the Library, the distribution of the whole must be on the terms of | |
559 | this License, whose permissions for other licensees extend to the | |
560 | entire whole, and thus to each and every part regardless of who wrote | |
561 | it. | |
562 | ||
563 | Thus, it is not the intent of this section to claim rights or contest | |
564 | your rights to work written entirely by you; rather, the intent is to | |
565 | exercise the right to control the distribution of derivative or | |
566 | collective works based on the Library. | |
567 | ||
568 | In addition, mere aggregation of another work not based on the Library | |
569 | with the Library (or with a work based on the Library) on a volume of | |
570 | a storage or distribution medium does not bring the other work under | |
571 | the scope of this License. | |
572 | ||
573 | 3. You may opt to apply the terms of the ordinary GNU General Public | |
574 | License instead of this License to a given copy of the Library. To do | |
575 | this, you must alter all the notices that refer to this License, so | |
576 | that they refer to the ordinary GNU General Public License, version 2, | |
577 | instead of to this License. (If a newer version than version 2 of the | |
578 | ordinary GNU General Public License has appeared, then you can specify | |
579 | that version instead if you wish.) Do not make any other change in | |
580 | these notices. | |
581 | \f | |
582 | Once this change is made in a given copy, it is irreversible for | |
583 | that copy, so the ordinary GNU General Public License applies to all | |
584 | subsequent copies and derivative works made from that copy. | |
585 | ||
586 | This option is useful when you wish to copy part of the code of | |
587 | the Library into a program that is not a library. | |
588 | ||
589 | 4. You may copy and distribute the Library (or a portion or | |
590 | derivative of it, under Section 2) in object code or executable form | |
591 | under the terms of Sections 1 and 2 above provided that you accompany | |
592 | it with the complete corresponding machine-readable source code, which | |
593 | must be distributed under the terms of Sections 1 and 2 above on a | |
594 | medium customarily used for software interchange. | |
595 | ||
596 | If distribution of object code is made by offering access to copy | |
597 | from a designated place, then offering equivalent access to copy the | |
598 | source code from the same place satisfies the requirement to | |
599 | distribute the source code, even though third parties are not | |
600 | compelled to copy the source along with the object code. | |
601 | ||
602 | 5. A program that contains no derivative of any portion of the | |
603 | Library, but is designed to work with the Library by being compiled or | |
604 | linked with it, is called a "work that uses the Library". Such a | |
605 | work, in isolation, is not a derivative work of the Library, and | |
606 | therefore falls outside the scope of this License. | |
607 | ||
608 | However, linking a "work that uses the Library" with the Library | |
609 | creates an executable that is a derivative of the Library (because it | |
610 | contains portions of the Library), rather than a "work that uses the | |
611 | library". The executable is therefore covered by this License. | |
612 | Section 6 states terms for distribution of such executables. | |
613 | ||
614 | When a "work that uses the Library" uses material from a header file | |
615 | that is part of the Library, the object code for the work may be a | |
616 | derivative work of the Library even though the source code is not. | |
617 | Whether this is true is especially significant if the work can be | |
618 | linked without the Library, or if the work is itself a library. The | |
619 | threshold for this to be true is not precisely defined by law. | |
620 | ||
621 | If such an object file uses only numerical parameters, data | |
622 | structure layouts and accessors, and small macros and small inline | |
623 | functions (ten lines or less in length), then the use of the object | |
624 | file is unrestricted, regardless of whether it is legally a derivative | |
625 | work. (Executables containing this object code plus portions of the | |
626 | Library will still fall under Section 6.) | |
627 | ||
628 | Otherwise, if the work is a derivative of the Library, you may | |
629 | distribute the object code for the work under the terms of Section 6. | |
630 | Any executables containing that work also fall under Section 6, | |
631 | whether or not they are linked directly with the Library itself. | |
632 | \f | |
633 | 6. As an exception to the Sections above, you may also compile or | |
634 | link a "work that uses the Library" with the Library to produce a | |
635 | work containing portions of the Library, and distribute that work | |
636 | under terms of your choice, provided that the terms permit | |
637 | modification of the work for the customer's own use and reverse | |
638 | engineering for debugging such modifications. | |
639 | ||
640 | You must give prominent notice with each copy of the work that the | |
641 | Library is used in it and that the Library and its use are covered by | |
642 | this License. You must supply a copy of this License. If the work | |
643 | during execution displays copyright notices, you must include the | |
644 | copyright notice for the Library among them, as well as a reference | |
645 | directing the user to the copy of this License. Also, you must do one | |
646 | of these things: | |
647 | ||
648 | a) Accompany the work with the complete corresponding | |
649 | machine-readable source code for the Library including whatever | |
650 | changes were used in the work (which must be distributed under | |
651 | Sections 1 and 2 above); and, if the work is an executable linked | |
652 | with the Library, with the complete machine-readable "work that | |
653 | uses the Library", as object code and/or source code, so that the | |
654 | user can modify the Library and then relink to produce a modified | |
655 | executable containing the modified Library. (It is understood | |
656 | that the user who changes the contents of definitions files in the | |
657 | Library will not necessarily be able to recompile the application | |
658 | to use the modified definitions.) | |
659 | ||
660 | b) Accompany the work with a written offer, valid for at | |
661 | least three years, to give the same user the materials | |
662 | specified in Subsection 6a, above, for a charge no more | |
663 | than the cost of performing this distribution. | |
664 | ||
665 | c) If distribution of the work is made by offering access to copy | |
666 | from a designated place, offer equivalent access to copy the above | |
667 | specified materials from the same place. | |
668 | ||
669 | d) Verify that the user has already received a copy of these | |
670 | materials or that you have already sent this user a copy. | |
671 | ||
672 | For an executable, the required form of the "work that uses the | |
673 | Library" must include any data and utility programs needed for | |
674 | reproducing the executable from it. However, as a special exception, | |
675 | the source code distributed need not include anything that is normally | |
676 | distributed (in either source or binary form) with the major | |
677 | components (compiler, kernel, and so on) of the operating system on | |
678 | which the executable runs, unless that component itself accompanies | |
679 | the executable. | |
680 | ||
681 | It may happen that this requirement contradicts the license | |
682 | restrictions of other proprietary libraries that do not normally | |
683 | accompany the operating system. Such a contradiction means you cannot | |
684 | use both them and the Library together in an executable that you | |
685 | distribute. | |
686 | \f | |
687 | 7. You may place library facilities that are a work based on the | |
688 | Library side-by-side in a single library together with other library | |
689 | facilities not covered by this License, and distribute such a combined | |
690 | library, provided that the separate distribution of the work based on | |
691 | the Library and of the other library facilities is otherwise | |
692 | permitted, and provided that you do these two things: | |
693 | ||
694 | a) Accompany the combined library with a copy of the same work | |
695 | based on the Library, uncombined with any other library | |
696 | facilities. This must be distributed under the terms of the | |
697 | Sections above. | |
698 | ||
699 | b) Give prominent notice with the combined library of the fact | |
700 | that part of it is a work based on the Library, and explaining | |
701 | where to find the accompanying uncombined form of the same work. | |
702 | ||
703 | 8. You may not copy, modify, sublicense, link with, or distribute | |
704 | the Library except as expressly provided under this License. Any | |
705 | attempt otherwise to copy, modify, sublicense, link with, or | |
706 | distribute the Library is void, and will automatically terminate your | |
707 | rights under this License. However, parties who have received copies, | |
708 | or rights, from you under this License will not have their licenses | |
709 | terminated so long as such parties remain in full compliance. | |
710 | ||
711 | 9. You are not required to accept this License, since you have not | |
712 | signed it. However, nothing else grants you permission to modify or | |
713 | distribute the Library or its derivative works. These actions are | |
714 | prohibited by law if you do not accept this License. Therefore, by | |
715 | modifying or distributing the Library (or any work based on the | |
716 | Library), you indicate your acceptance of this License to do so, and | |
717 | all its terms and conditions for copying, distributing or modifying | |
718 | the Library or works based on it. | |
719 | ||
720 | 10. Each time you redistribute the Library (or any work based on the | |
721 | Library), the recipient automatically receives a license from the | |
722 | original licensor to copy, distribute, link with or modify the Library | |
723 | subject to these terms and conditions. You may not impose any further | |
724 | restrictions on the recipients' exercise of the rights granted herein. | |
725 | You are not responsible for enforcing compliance by third parties to | |
726 | this License. | |
727 | \f | |
728 | 11. If, as a consequence of a court judgment or allegation of patent | |
729 | infringement or for any other reason (not limited to patent issues), | |
730 | conditions are imposed on you (whether by court order, agreement or | |
731 | otherwise) that contradict the conditions of this License, they do not | |
732 | excuse you from the conditions of this License. If you cannot | |
733 | distribute so as to satisfy simultaneously your obligations under this | |
734 | License and any other pertinent obligations, then as a consequence you | |
735 | may not distribute the Library at all. For example, if a patent | |
736 | license would not permit royalty-free redistribution of the Library by | |
737 | all those who receive copies directly or indirectly through you, then | |
738 | the only way you could satisfy both it and this License would be to | |
739 | refrain entirely from distribution of the Library. | |
740 | ||
741 | If any portion of this section is held invalid or unenforceable under any | |
742 | particular circumstance, the balance of the section is intended to apply, | |
743 | and the section as a whole is intended to apply in other circumstances. | |
744 | ||
745 | It is not the purpose of this section to induce you to infringe any | |
746 | patents or other property right claims or to contest validity of any | |
747 | such claims; this section has the sole purpose of protecting the | |
748 | integrity of the free software distribution system which is | |
749 | implemented by public license practices. Many people have made | |
750 | generous contributions to the wide range of software distributed | |
751 | through that system in reliance on consistent application of that | |
752 | system; it is up to the author/donor to decide if he or she is willing | |
753 | to distribute software through any other system and a licensee cannot | |
754 | impose that choice. | |
755 | ||
756 | This section is intended to make thoroughly clear what is believed to | |
757 | be a consequence of the rest of this License. | |
758 | ||
759 | 12. If the distribution and/or use of the Library is restricted in | |
760 | certain countries either by patents or by copyrighted interfaces, the | |
761 | original copyright holder who places the Library under this License may add | |
762 | an explicit geographical distribution limitation excluding those countries, | |
763 | so that distribution is permitted only in or among countries not thus | |
764 | excluded. In such case, this License incorporates the limitation as if | |
765 | written in the body of this License. | |
766 | ||
767 | 13. The Free Software Foundation may publish revised and/or new | |
768 | versions of the Library General Public License from time to time. | |
769 | Such new versions will be similar in spirit to the present version, | |
770 | but may differ in detail to address new problems or concerns. | |
771 | ||
772 | Each version is given a distinguishing version number. If the Library | |
773 | specifies a version number of this License which applies to it and | |
774 | "any later version", you have the option of following the terms and | |
775 | conditions either of that version or of any later version published by | |
776 | the Free Software Foundation. If the Library does not specify a | |
777 | license version number, you may choose any version ever published by | |
778 | the Free Software Foundation. | |
779 | \f | |
780 | 14. If you wish to incorporate parts of the Library into other free | |
781 | programs whose distribution conditions are incompatible with these, | |
782 | write to the author to ask for permission. For software which is | |
783 | copyrighted by the Free Software Foundation, write to the Free | |
784 | Software Foundation; we sometimes make exceptions for this. Our | |
785 | decision will be guided by the two goals of preserving the free status | |
786 | of all derivatives of our free software and of promoting the sharing | |
787 | and reuse of software generally. | |
788 | ||
789 | NO WARRANTY | |
790 | ||
791 | 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO | |
792 | WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. | |
793 | EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR | |
794 | OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY | |
795 | KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE | |
796 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
797 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE | |
798 | LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME | |
799 | THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. | |
800 | ||
801 | 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN | |
802 | WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY | |
803 | AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU | |
804 | FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR | |
805 | CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE | |
806 | LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING | |
807 | RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A | |
808 | FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF | |
809 | SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH | |
810 | DAMAGES. | |
811 | ||
812 | END OF TERMS AND CONDITIONS |