gpl.info (37522B)
1 This is gpl.info, produced by makeinfo version 6.8 from gpl.texi. 2 3 Version 3, 29 June 2007 4 5 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> 6 7 Everyone is permitted to copy and distribute verbatim copies of this 8 license document, but changing it is not allowed. 9 10 Preamble 11 ======== 12 13 The GNU General Public License is a free, copyleft license for software 14 and other kinds of works. 15 16 The licenses for most software and other practical works are designed 17 to take away your freedom to share and change the works. By contrast, 18 the GNU General Public License is intended to guarantee your freedom to 19 share and change all versions of a program--to make sure it remains free 20 software for all its users. We, the Free Software Foundation, use the 21 GNU General Public License for most of our software; it applies also to 22 any other work released this way by its authors. You can apply it to 23 your programs, too. 24 25 When we speak of free software, we are referring to freedom, not 26 price. Our General Public Licenses are designed to make sure that you 27 have the freedom to distribute copies of free software (and charge for 28 them if you wish), that you receive source code or can get it if you 29 want it, that you can change the software or use pieces of it in new 30 free programs, and that you know you can do these things. 31 32 To protect your rights, we need to prevent others from denying you 33 these rights or asking you to surrender the rights. Therefore, you have 34 certain responsibilities if you distribute copies of the software, or if 35 you modify it: responsibilities to respect the freedom of others. 36 37 For example, if you distribute copies of such a program, whether 38 gratis or for a fee, you must pass on to the recipients the same 39 freedoms that you received. 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To prevent this, the GPL assures that 69 patents cannot be used to render the program non-free. 70 71 The precise terms and conditions for copying, distribution and 72 modification follow. 73 74 TERMS AND CONDITIONS 75 ==================== 76 77 0. Definitions. 78 79 "This License" refers to version 3 of the GNU General Public 80 License. 81 82 "Copyright" also means copyright-like laws that apply to other 83 kinds of works, such as semiconductor masks. 84 85 "The Program" refers to any copyrightable work licensed under this 86 License. Each licensee is addressed as "you". "Licensees" and 87 "recipients" may be individuals or organizations. 88 89 To "modify" a work means to copy from or adapt all or part of the 90 work in a fashion requiring copyright permission, other than the 91 making of an exact copy. 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Mere interaction with a user 107 through a computer network, with no transfer of a copy, is not 108 conveying. 109 110 An interactive user interface displays "Appropriate Legal Notices" 111 to the extent that it includes a convenient and prominently visible 112 feature that (1) displays an appropriate copyright notice, and (2) 113 tells the user that there is no warranty for the work (except to 114 the extent that warranties are provided), that licensees may convey 115 the work under this License, and how to view a copy of this 116 License. If the interface presents a list of user commands or 117 options, such as a menu, a prominent item in the list meets this 118 criterion. 119 120 1. Source Code. 121 122 The "source code" for a work means the preferred form of the work 123 for making modifications to it. 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If additional permissions apply only to part of the Program, 370 that part may be used separately under those permissions, but the 371 entire Program remains governed by this License without regard to 372 the additional permissions. 373 374 When you convey a copy of a covered work, you may at your option 375 remove any additional permissions from that copy, or from any part 376 of it. (Additional permissions may be written to require their own 377 removal in certain cases when you modify the work.) You may place 378 additional permissions on material, added by you to a covered work, 379 for which you have or can give appropriate copyright permission. 380 381 Notwithstanding any other provision of this License, for material 382 you add to a covered work, you may (if authorized by the copyright 383 holders of that material) supplement the terms of this License with 384 terms: 385 386 a. Disclaiming warranty or limiting liability differently from 387 the terms of sections 15 and 16 of this License; or 388 389 b. Requiring preservation of specified reasonable legal notices 390 or author attributions in that material or in the Appropriate 391 Legal Notices displayed by works containing it; or 392 393 c. Prohibiting misrepresentation of the origin of that material, 394 or requiring that modified versions of such material be marked 395 in reasonable ways as different from the original version; or 396 397 d. Limiting the use for publicity purposes of names of licensors 398 or authors of the material; or 399 400 e. Declining to grant rights under trademark law for use of some 401 trade names, trademarks, or service marks; or 402 403 f. 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If your rights have been terminated and not 453 permanently reinstated, you do not qualify to receive new licenses 454 for the same material under section 10. 455 456 9. Acceptance Not Required for Having Copies. 457 458 You are not required to accept this License in order to receive or 459 run a copy of the Program. Ancillary propagation of a covered work 460 occurring solely as a consequence of using peer-to-peer 461 transmission to receive a copy likewise does not require 462 acceptance. However, nothing other than this License grants you 463 permission to propagate or modify any covered work. These actions 464 infringe copyright if you do not accept this License. Therefore, 465 by modifying or propagating a covered work, you indicate your 466 acceptance of this License to do so. 467 468 10. Automatic Licensing of Downstream Recipients. 469 470 Each time you convey a covered work, the recipient automatically 471 receives a license from the original licensors, to run, modify and 472 propagate that work, subject to this License. You are not 473 responsible for enforcing compliance by third parties with this 474 License. 475 476 An "entity transaction" is a transaction transferring control of an 477 organization, or substantially all assets of one, or subdividing an 478 organization, or merging organizations. If propagation of a 479 covered work results from an entity transaction, each party to that 480 transaction who receives a copy of the work also receives whatever 481 licenses to the work the party's predecessor in interest had or 482 could give under the previous paragraph, plus a right to possession 483 of the Corresponding Source of the work from the predecessor in 484 interest, if the predecessor has it or can get it with reasonable 485 efforts. 486 487 You may not impose any further restrictions on the exercise of the 488 rights granted or affirmed under this License. For example, you 489 may not impose a license fee, royalty, or other charge for exercise 490 of rights granted under this License, and you may not initiate 491 litigation (including a cross-claim or counterclaim in a lawsuit) 492 alleging that any patent claim is infringed by making, using, 493 selling, offering for sale, or importing the Program or any portion 494 of it. 495 496 11. Patents. 497 498 A "contributor" is a copyright holder who authorizes use under this 499 License of the Program or a work on which the Program is based. 500 The work thus licensed is called the contributor's "contributor 501 version". 502 503 A contributor's "essential patent claims" are all patent claims 504 owned or controlled by the contributor, whether already acquired or 505 hereafter acquired, that would be infringed by some manner, 506 permitted by this License, of making, using, or selling its 507 contributor version, but do not include claims that would be 508 infringed only as a consequence of further modification of the 509 contributor version. For purposes of this definition, "control" 510 includes the right to grant patent sublicenses in a manner 511 consistent with the requirements of this License. 512 513 Each contributor grants you a non-exclusive, worldwide, 514 royalty-free patent license under the contributor's essential 515 patent claims, to make, use, sell, offer for sale, import and 516 otherwise run, modify and propagate the contents of its contributor 517 version. 518 519 In the following three paragraphs, a "patent license" is any 520 express agreement or commitment, however denominated, not to 521 enforce a patent (such as an express permission to practice a 522 patent or covenant not to sue for patent infringement). To "grant" 523 such a patent license to a party means to make such an agreement or 524 commitment not to enforce a patent against the party. 525 526 If you convey a covered work, knowingly relying on a patent 527 license, and the Corresponding Source of the work is not available 528 for anyone to copy, free of charge and under the terms of this 529 License, through a publicly available network server or other 530 readily accessible means, then you must either (1) cause the 531 Corresponding Source to be so available, or (2) arrange to deprive 532 yourself of the benefit of the patent license for this particular 533 work, or (3) arrange, in a manner consistent with the requirements 534 of this License, to extend the patent license to downstream 535 recipients. "Knowingly relying" means you have actual knowledge 536 that, but for the patent license, your conveying the covered work 537 in a country, or your recipient's use of the covered work in a 538 country, would infringe one or more identifiable patents in that 539 country that you have reason to believe are valid. 540 541 If, pursuant to or in connection with a single transaction or 542 arrangement, you convey, or propagate by procuring conveyance of, a 543 covered work, and grant a patent license to some of the parties 544 receiving the covered work authorizing them to use, propagate, 545 modify or convey a specific copy of the covered work, then the 546 patent license you grant is automatically extended to all 547 recipients of the covered work and works based on it. 548 549 A patent license is "discriminatory" if it does not include within 550 the scope of its coverage, prohibits the exercise of, or is 551 conditioned on the non-exercise of one or more of the rights that 552 are specifically granted under this License. You may not convey a 553 covered work if you are a party to an arrangement with a third 554 party that is in the business of distributing software, under which 555 you make payment to the third party based on the extent of your 556 activity of conveying the work, and under which the third party 557 grants, to any of the parties who would receive the covered work 558 from you, a discriminatory patent license (a) in connection with 559 copies of the covered work conveyed by you (or copies made from 560 those copies), or (b) primarily for and in connection with specific 561 products or compilations that contain the covered work, unless you 562 entered into that arrangement, or that patent license was granted, 563 prior to 28 March 2007. 564 565 Nothing in this License shall be construed as excluding or limiting 566 any implied license or other defenses to infringement that may 567 otherwise be available to you under applicable patent law. 568 569 12. No Surrender of Others' Freedom. 570 571 If conditions are imposed on you (whether by court order, agreement 572 or otherwise) that contradict the conditions of this License, they 573 do not excuse you from the conditions of this License. If you 574 cannot convey a covered work so as to satisfy simultaneously your 575 obligations under this License and any other pertinent obligations, 576 then as a consequence you may not convey it at all. For example, 577 if you agree to terms that obligate you to collect a royalty for 578 further conveying from those to whom you convey the Program, the 579 only way you could satisfy both those terms and this License would 580 be to refrain entirely from conveying the Program. 581 582 13. Use with the GNU Affero General Public License. 583 584 Notwithstanding any other provision of this License, you have 585 permission to link or combine any covered work with a work licensed 586 under version 3 of the GNU Affero General Public License into a 587 single combined work, and to convey the resulting work. The terms 588 of this License will continue to apply to the part which is the 589 covered work, but the special requirements of the GNU Affero 590 General Public License, section 13, concerning interaction through 591 a network will apply to the combination as such. 592 593 14. Revised Versions of this License. 594 595 The Free Software Foundation may publish revised and/or new 596 versions of the GNU General Public License from time to time. Such 597 new versions will be similar in spirit to the present version, but 598 may differ in detail to address new problems or concerns. 599 600 Each version is given a distinguishing version number. If the 601 Program specifies that a certain numbered version of the GNU 602 General Public License "or any later version" applies to it, you 603 have the option of following the terms and conditions either of 604 that numbered version or of any later version published by the Free 605 Software Foundation. If the Program does not specify a version 606 number of the GNU General Public License, you may choose any 607 version ever published by the Free Software Foundation. 608 609 If the Program specifies that a proxy can decide which future 610 versions of the GNU General Public License can be used, that 611 proxy's public statement of acceptance of a version permanently 612 authorizes you to choose that version for the Program. 613 614 Later license versions may give you additional or different 615 permissions. However, no additional obligations are imposed on any 616 author or copyright holder as a result of your choosing to follow a 617 later version. 618 619 15. Disclaimer of Warranty. 620 621 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 622 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE 623 COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" 624 WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, 625 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 626 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE 627 RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. 628 SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL 629 NECESSARY SERVICING, REPAIR OR CORRECTION. 630 631 16. Limitation of Liability. 632 633 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN 634 WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES 635 AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR 636 DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR 637 CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE 638 THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA 639 BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 640 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 641 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF 642 THE POSSIBILITY OF SUCH DAMAGES. 643 644 17. Interpretation of Sections 15 and 16. 645 646 If the disclaimer of warranty and limitation of liability provided 647 above cannot be given local legal effect according to their terms, 648 reviewing courts shall apply local law that most closely 649 approximates an absolute waiver of all civil liability in 650 connection with the Program, unless a warranty or assumption of 651 liability accompanies a copy of the Program in return for a fee. 652 653 END OF TERMS AND CONDITIONS 654 =========================== 655 656 How to Apply These Terms to Your New Programs 657 ============================================= 658 659 If you develop a new program, and you want it to be of the greatest 660 possible use to the public, the best way to achieve this is to make it 661 free software which everyone can redistribute and change under these 662 terms. 663 664 To do so, attach the following notices to the program. It is safest 665 to attach them to the start of each source file to most effectively 666 state the exclusion of warranty; and each file should have at least the 667 "copyright" line and a pointer to where the full notice is found. 668 669 ONE LINE TO GIVE THE PROGRAM'S NAME AND A BRIEF IDEA OF WHAT IT DOES. 670 Copyright (C) YEAR NAME OF AUTHOR 671 672 This program is free software: you can redistribute it and/or modify 673 it under the terms of the GNU General Public License as published by 674 the Free Software Foundation, either version 3 of the License, or (at 675 your option) any later version. 676 677 This program is distributed in the hope that it will be useful, but 678 WITHOUT ANY WARRANTY; without even the implied warranty of 679 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 680 General Public License for more details. 681 682 You should have received a copy of the GNU General Public License 683 along with this program. If not, see <https://www.gnu.org/licenses/>. 684 685 Also add information on how to contact you by electronic and paper 686 mail. 687 688 If the program does terminal interaction, make it output a short 689 notice like this when it starts in an interactive mode: 690 691 PROGRAM Copyright (C) YEAR NAME OF AUTHOR 692 This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'. 693 This is free software, and you are welcome to redistribute it 694 under certain conditions; type 'show c' for details. 695 696 The hypothetical commands 'show w' and 'show c' should show the 697 appropriate parts of the General Public License. Of course, your 698 program's commands might be different; for a GUI interface, you would 699 use an "about box". 700 701 You should also get your employer (if you work as a programmer) or 702 school, if any, to sign a "copyright disclaimer" for the program, if 703 necessary. For more information on this, and how to apply and follow 704 the GNU GPL, see <https://www.gnu.org/licenses/>. 705 706 The GNU General Public License does not permit incorporating your 707 program into proprietary programs. If your program is a subroutine 708 library, you may consider it more useful to permit linking proprietary 709 applications with the library. If this is what you want to do, use the 710 GNU Lesser General Public License instead of this License. But first, 711 please read <https://www.gnu.org/licenses/why-not-lgpl.html>. 712 713 714 Tag Table: 715 716 End Tag Table 717 718 719 Local Variables: 720 coding: utf-8 721 End: