| | 577 | GNU GENERAL PUBLIC LICENSE\ |
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| | 578 | Version 2, June 1991\ |
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| | 579 | \ |
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| | 580 | Copyright (C) 1989, 1991 Free Software Foundation, Inc.\ |
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| | 581 | 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\ |
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| | 582 | Everyone is permitted to copy and distribute verbatim copies\ |
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| | 583 | of this license document, but changing it is not allowed.\ |
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| | 584 | \ |
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| | 585 | Preamble\ |
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| | 586 | \ |
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| | 587 | The licenses for most software are designed to take away your\ |
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| | 588 | freedom to share and change it. By contrast, the GNU General Public\ |
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| | 589 | License is intended to guarantee your freedom to share and change free\ |
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| | 590 | software--to make sure the software is free for all its users. This\ |
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| | 591 | General Public License applies to most of the Free Software\ |
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| | 592 | Foundation's software and to any other program whose authors commit to\ |
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| | 593 | using it. (Some other Free Software Foundation software is covered by\ |
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| | 594 | the GNU Library General Public License instead.) You can apply it to\ |
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| | 595 | your programs, too.\ |
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| | 596 | \ |
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| | 597 | When we speak of free software, we are referring to freedom, not\ |
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| | 598 | price. Our General Public Licenses are designed to make sure that you\ |
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| | 599 | have the freedom to distribute copies of free software (and charge for\ |
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| | 600 | this service if you wish), that you receive source code or can get it\ |
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| | 601 | if you want it, that you can change the software or use pieces of it\ |
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| | 602 | in new free programs; and that you know you can do these things.\ |
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| | 603 | \ |
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| | 604 | To protect your rights, we need to make restrictions that forbid\ |
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| | 605 | anyone to deny you these rights or to ask you to surrender the rights.\ |
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| | 606 | These restrictions translate to certain responsibilities for you if you\ |
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| | 607 | distribute copies of the software, or if you modify it.\ |
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| | 608 | \ |
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| | 609 | For example, if you distribute copies of such a program, whether\ |
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| | 610 | gratis or for a fee, you must give the recipients all the rights that\ |
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| | 611 | you have. You must make sure that they, too, receive or can get the\ |
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| | 612 | source code. And you must show them these terms so they know their\ |
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| | 613 | rights.\ |
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| | 614 | \ |
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| | 615 | We protect your rights with two steps: (1) copyright the software, and\ |
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| | 616 | (2) offer you this license which gives you legal permission to copy,\ |
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| | 617 | distribute and/or modify the software.\ |
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| | 618 | \ |
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| | 619 | Also, for each author's protection and ours, we want to make certain\ |
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| | 620 | that everyone understands that there is no warranty for this free\ |
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| | 621 | software. If the software is modified by someone else and passed on, we\ |
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| | 622 | want its recipients to know that what they have is not the original, so\ |
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| | 623 | that any problems introduced by others will not reflect on the original\ |
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| | 624 | authors' reputations.\ |
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| | 625 | \ |
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| | 626 | Finally, any free program is threatened constantly by software\ |
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| | 627 | patents. We wish to avoid the danger that redistributors of a free\ |
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| | 628 | program will individually obtain patent licenses, in effect making the\ |
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| | 629 | program proprietary. To prevent this, we have made it clear that any\ |
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| | 630 | patent must be licensed for everyone's free use or not licensed at all.\ |
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| | 631 | \ |
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| | 632 | The precise terms and conditions for copying, distribution and\ |
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| | 633 | modification follow.\ |
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| | 634 | \page \ |
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| | 635 | GNU GENERAL PUBLIC LICENSE\ |
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| | 636 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\ |
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| | 637 | \ |
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| | 638 | 0. This License applies to any program or other work which contains\ |
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| | 639 | a notice placed by the copyright holder saying it may be distributed\ |
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| | 640 | under the terms of this General Public License. The "Program", below,\ |
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| | 641 | refers to any such program or work, and a "work based on the Program"\ |
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| | 642 | means either the Program or any derivative work under copyright law:\ |
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| | 643 | that is to say, a work containing the Program or a portion of it,\ |
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| | 644 | either verbatim or with modifications and/or translated into another\ |
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| | 645 | language. (Hereinafter, translation is included without limitation in\ |
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| | 646 | the term "modification".) Each licensee is addressed as "you".\ |
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| | 647 | \ |
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| | 648 | Activities other than copying, distribution and modification are not\ |
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| | 649 | covered by this License; they are outside its scope. The act of\ |
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| | 650 | running the Program is not restricted, and the output from the Program\ |
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| | 651 | is covered only if its contents constitute a work based on the\ |
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| | 652 | Program (independent of having been made by running the Program).\ |
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| | 653 | Whether that is true depends on what the Program does.\ |
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| | 654 | \ |
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| | 655 | 1. You may copy and distribute verbatim copies of the Program's\ |
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| | 656 | source code as you receive it, in any medium, provided that you\ |
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| | 657 | conspicuously and appropriately publish on each copy an appropriate\ |
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| | 658 | copyright notice and disclaimer of warranty; keep intact all the\ |
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| | 659 | notices that refer to this License and to the absence of any warranty;\ |
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| | 660 | and give any other recipients of the Program a copy of this License\ |
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| | 661 | along with the Program.\ |
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| | 662 | \ |
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| | 663 | You may charge a fee for the physical act of transferring a copy, and\ |
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| | 664 | you may at your option offer warranty protection in exchange for a fee.\ |
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| | 665 | \ |
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| | 666 | 2. You may modify your copy or copies of the Program or any portion\ |
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| | 667 | of it, thus forming a work based on the Program, and copy and\ |
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| | 668 | distribute such modifications or work under the terms of Section 1\ |
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| | 669 | above, provided that you also meet all of these conditions:\ |
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| | 670 | \ |
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| | 671 | a) You must cause the modified files to carry prominent notices\ |
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| | 672 | stating that you changed the files and the date of any change.\ |
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| | 673 | \ |
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| | 674 | b) You must cause any work that you distribute or publish, that in\ |
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| | 675 | whole or in part contains or is derived from the Program or any\ |
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| | 676 | part thereof, to be licensed as a whole at no charge to all third\ |
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| | 677 | parties under the terms of this License.\ |
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| | 678 | \ |
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| | 679 | c) If the modified program normally reads commands interactively\ |
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| | 680 | when run, you must cause it, when started running for such\ |
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| | 681 | interactive use in the most ordinary way, to print or display an\ |
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| | 682 | announcement including an appropriate copyright notice and a\ |
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| | 683 | notice that there is no warranty (or else, saying that you provide\ |
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| | 684 | a warranty) and that users may redistribute the program under\ |
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| | 685 | these conditions, and telling the user how to view a copy of this\ |
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| | 686 | License. (Exception: if the Program itself is interactive but\ |
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| | 687 | does not normally print such an announcement, your work based on\ |
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| | 688 | the Program is not required to print an announcement.)\ |
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| | 689 | \page \ |
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| | 690 | These requirements apply to the modified work as a whole. If\ |
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| | 691 | identifiable sections of that work are not derived from the Program,\ |
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| | 692 | and can be reasonably considered independent and separate works in\ |
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| | 693 | themselves, then this License, and its terms, do not apply to those\ |
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| | 694 | sections when you distribute them as separate works. But when you\ |
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| | 695 | distribute the same sections as part of a whole which is a work based\ |
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| | 696 | on the Program, the distribution of the whole must be on the terms of\ |
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| | 697 | this License, whose permissions for other licensees extend to the\ |
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| | 698 | entire whole, and thus to each and every part regardless of who wrote it.\ |
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| | 699 | \ |
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| | 700 | Thus, it is not the intent of this section to claim rights or contest\ |
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| | 701 | your rights to work written entirely by you; rather, the intent is to\ |
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| | 702 | exercise the right to control the distribution of derivative or\ |
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| | 703 | collective works based on the Program.\ |
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| | 704 | \ |
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| | 705 | In addition, mere aggregation of another work not based on the Program\ |
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| | 706 | with the Program (or with a work based on the Program) on a volume of\ |
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| | 707 | a storage or distribution medium does not bring the other work under\ |
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| | 708 | the scope of this License.\ |
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| | 709 | \ |
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| | 710 | 3. You may copy and distribute the Program (or a work based on it,\ |
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| | 711 | under Section 2) in object code or executable form under the terms of\ |
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| | 712 | Sections 1 and 2 above provided that you also do one of the following:\ |
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| | 713 | \ |
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| | 714 | a) Accompany it with the complete corresponding machine-readable\ |
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| | 715 | source code, which must be distributed under the terms of Sections\ |
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| | 716 | 1 and 2 above on a medium customarily used for software interchange; or,\ |
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| | 717 | \ |
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| | 718 | b) Accompany it with a written offer, valid for at least three\ |
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| | 719 | years, to give any third party, for a charge no more than your\ |
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| | 720 | cost of physically performing source distribution, a complete\ |
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| | 721 | machine-readable copy of the corresponding source code, to be\ |
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| | 722 | distributed under the terms of Sections 1 and 2 above on a medium\ |
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| | 723 | customarily used for software interchange; or,\ |
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| | 724 | \ |
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| | 725 | c) Accompany it with the information you received as to the offer\ |
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| | 726 | to distribute corresponding source code. (This alternative is\ |
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| | 727 | allowed only for noncommercial distribution and only if you\ |
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| | 728 | received the program in object code or executable form with such\ |
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| | 729 | an offer, in accord with Subsection b above.)\ |
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| | 730 | \ |
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| | 731 | The source code for a work means the preferred form of the work for\ |
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| | 732 | making modifications to it. For an executable work, complete source\ |
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| | 733 | code means all the source code for all modules it contains, plus any\ |
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| | 734 | associated interface definition files, plus the scripts used to\ |
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| | 735 | control compilation and installation of the executable. However, as a\ |
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| | 736 | special exception, the source code distributed need not include\ |
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| | 737 | anything that is normally distributed (in either source or binary\ |
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| | 738 | form) with the major components (compiler, kernel, and so on) of the\ |
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| | 739 | operating system on which the executable runs, unless that component\ |
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| | 740 | itself accompanies the executable.\ |
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| | 741 | \ |
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| | 742 | If distribution of executable or object code is made by offering\ |
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| | 743 | access to copy from a designated place, then offering equivalent\ |
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| | 744 | access to copy the source code from the same place counts as\ |
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| | 745 | distribution of the source code, even though third parties are not\ |
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| | 746 | compelled to copy the source along with the object code.\ |
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| | 747 | \page \ |
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| | 748 | 4. You may not copy, modify, sublicense, or distribute the Program\ |
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| | 749 | except as expressly provided under this License. Any attempt\ |
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| | 750 | otherwise to copy, modify, sublicense or distribute the Program is\ |
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| | 751 | void, and will automatically terminate your rights under this License.\ |
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| | 752 | However, parties who have received copies, or rights, from you under\ |
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| | 753 | this License will not have their licenses terminated so long as such\ |
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| | 754 | parties remain in full compliance.\ |
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| | 755 | \ |
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| | 756 | 5. You are not required to accept this License, since you have not\ |
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| | 757 | signed it. However, nothing else grants you permission to modify or\ |
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| | 758 | distribute the Program or its derivative works. These actions are\ |
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| | 759 | prohibited by law if you do not accept this License. Therefore, by\ |
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| | 760 | modifying or distributing the Program (or any work based on the\ |
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| | 761 | Program), you indicate your acceptance of this License to do so, and\ |
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| | 762 | all its terms and conditions for copying, distributing or modifying\ |
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| | 763 | the Program or works based on it.\ |
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| | 764 | \ |
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| | 765 | 6. Each time you redistribute the Program (or any work based on the\ |
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| | 766 | Program), the recipient automatically receives a license from the\ |
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| | 767 | original licensor to copy, distribute or modify the Program subject to\ |
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| | 768 | these terms and conditions. You may not impose any further\ |
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| | 769 | restrictions on the recipients' exercise of the rights granted herein.\ |
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| | 770 | You are not responsible for enforcing compliance by third parties to\ |
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| | 771 | this License.\ |
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| | 772 | \ |
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| | 773 | 7. If, as a consequence of a court judgment or allegation of patent\ |
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| | 774 | infringement or for any other reason (not limited to patent issues),\ |
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| | 775 | conditions are imposed on you (whether by court order, agreement or\ |
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| | 776 | otherwise) that contradict the conditions of this License, they do not\ |
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| | 777 | excuse you from the conditions of this License. If you cannot\ |
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| | 778 | distribute so as to satisfy simultaneously your obligations under this\ |
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| | 779 | License and any other pertinent obligations, then as a consequence you\ |
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| | 780 | may not distribute the Program at all. For example, if a patent\ |
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| | 781 | license would not permit royalty-free redistribution of the Program by\ |
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| | 782 | all those who receive copies directly or indirectly through you, then\ |
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| | 783 | the only way you could satisfy both it and this License would be to\ |
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| | 784 | refrain entirely from distribution of the Program.\ |
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| | 785 | \ |
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| | 786 | If any portion of this section is held invalid or unenforceable under\ |
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| | 787 | any particular circumstance, the balance of the section is intended to\ |
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| | 788 | apply and the section as a whole is intended to apply in other\ |
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| | 789 | circumstances.\ |
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| | 790 | \ |
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| | 791 | It is not the purpose of this section to induce you to infringe any\ |
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| | 792 | patents or other property right claims or to contest validity of any\ |
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| | 793 | such claims; this section has the sole purpose of protecting the\ |
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| | 794 | integrity of the free software distribution system, which is\ |
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| | 795 | implemented by public license practices. Many people have made\ |
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| | 796 | generous contributions to the wide range of software distributed\ |
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| | 797 | through that system in reliance on consistent application of that\ |
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| | 798 | system; it is up to the author/donor to decide if he or she is willing\ |
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| | 799 | to distribute software through any other system and a licensee cannot\ |
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| | 800 | impose that choice.\ |
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| | 801 | \ |
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| | 802 | This section is intended to make thoroughly clear what is believed to\ |
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| | 803 | be a consequence of the rest of this License.\ |
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| | 804 | \page \ |
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| | 805 | 8. If the distribution and/or use of the Program is restricted in\ |
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| | 806 | certain countries either by patents or by copyrighted interfaces, the\ |
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| | 807 | original copyright holder who places the Program under this License\ |
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| | 808 | may add an explicit geographical distribution limitation excluding\ |
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| | 809 | those countries, so that distribution is permitted only in or among\ |
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| | 810 | countries not thus excluded. In such case, this License incorporates\ |
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| | 811 | the limitation as if written in the body of this License.\ |
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| | 812 | \ |
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| | 813 | 9. The Free Software Foundation may publish revised and/or new versions\ |
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| | 814 | of the General Public License from time to time. Such new versions will\ |
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| | 815 | be similar in spirit to the present version, but may differ in detail to\ |
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| | 816 | address new problems or concerns.\ |
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| | 817 | \ |
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| | 818 | Each version is given a distinguishing version number. If the Program\ |
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| | 819 | specifies a version number of this License which applies to it and "any\ |
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| | 820 | later version", you have the option of following the terms and conditions\ |
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| | 821 | either of that version or of any later version published by the Free\ |
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| | 822 | Software Foundation. If the Program does not specify a version number of\ |
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| | 823 | this License, you may choose any version ever published by the Free Software\ |
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| | 824 | Foundation.\ |
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| | 825 | \ |
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| | 826 | 10. If you wish to incorporate parts of the Program into other free\ |
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| | 827 | programs whose distribution conditions are different, write to the author\ |
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| | 828 | to ask for permission. For software which is copyrighted by the Free\ |
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| | 829 | Software Foundation, write to the Free Software Foundation; we sometimes\ |
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| | 830 | make exceptions for this. Our decision will be guided by the two goals\ |
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| | 831 | of preserving the free status of all derivatives of our free software and\ |
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| | 832 | of promoting the sharing and reuse of software generally.\ |
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| | 833 | \ |
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| | 834 | NO WARRANTY\ |
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| | 835 | \ |
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| | 836 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\ |
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| | 837 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN\ |
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| | 838 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES\ |
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| | 839 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED\ |
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| | 840 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\ |
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| | 841 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS\ |
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| | 842 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE\ |
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| | 843 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,\ |
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| | 844 | REPAIR OR CORRECTION.\ |
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| | 845 | \ |
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| | 846 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\ |
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| | 847 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR\ |
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| | 848 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,\ |
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| | 849 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING\ |
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| | 850 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED\ |
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| | 851 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY\ |
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| | 852 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER\ |
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| | 853 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE\ |
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| | 854 | POSSIBILITY OF SUCH DAMAGES.\ |
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| | 855 | \ |
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| | 856 | END OF TERMS AND CONDITIONS\ |
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| | 857 | \page \ |
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| | 858 | How to Apply These Terms to Your New Programs\ |
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| | 859 | \ |
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| | 860 | If you develop a new program, and you want it to be of the greatest\ |
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| | 861 | possible use to the public, the best way to achieve this is to make it\ |
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| | 862 | free software which everyone can redistribute and change under these terms.\ |
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| | 863 | \ |
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| | 864 | To do so, attach the following notices to the program. It is safest\ |
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| | 865 | to attach them to the start of each source file to most effectively\ |
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| | 866 | convey the exclusion of warranty; and each file should have at least\ |
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| | 867 | the "copyright" line and a pointer to where the full notice is found.\ |
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| | 868 | \ |
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| | 869 | <one line to give the program's name and a brief idea of what it does.>\ |
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| | 870 | Copyright (C) <year> <name of author>\ |
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| | 871 | \ |
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| | 872 | This program is free software; you can redistribute it and/or modify\ |
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| | 873 | it under the terms of the GNU General Public License as published by\ |
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| | 874 | the Free Software Foundation; either version 2 of the License, or\ |
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| | 875 | (at your option) any later version.\ |
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| | 876 | \ |
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| | 877 | This program is distributed in the hope that it will be useful,\ |
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| | 878 | but WITHOUT ANY WARRANTY; without even the implied warranty of\ |
|---|
| | 879 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\ |
|---|
| | 880 | GNU General Public License for more details.\ |
|---|
| | 881 | \ |
|---|
| | 882 | You should have received a copy of the GNU General Public License\ |
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| | 883 | along with this program; if not, write to the Free Software\ |
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| | 884 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\ |
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| | 885 | \ |
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| | 886 | \ |
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| | 887 | Also add information on how to contact you by electronic and paper mail.\ |
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| | 888 | \ |
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| | 889 | If the program is interactive, make it output a short notice like this\ |
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| | 890 | when it starts in an interactive mode:\ |
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| | 891 | \ |
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| | 892 | Gnomovision version 69, Copyright (C) year name of author\ |
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| | 893 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.\ |
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| | 894 | This is free software, and you are welcome to redistribute it\ |
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| | 895 | under certain conditions; type `show c' for details.\ |
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| | 896 | \ |
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| | 897 | The hypothetical commands `show w' and `show c' should show the appropriate\ |
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| | 898 | parts of the General Public License. Of course, the commands you use may\ |
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| | 899 | be called something other than `show w' and `show c'; they could even be\ |
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| | 900 | mouse-clicks or menu items--whatever suits your program.\ |
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| | 901 | \ |
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| | 902 | You should also get your employer (if you work as a programmer) or your\ |
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| | 903 | school, if any, to sign a "copyright disclaimer" for the program, if\ |
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| | 904 | necessary. Here is a sample; alter the names:\ |
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| | 905 | \ |
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| | 906 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program\ |
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| | 907 | `Gnomovision' (which makes passes at compilers) written by James Hacker.\ |
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| | 908 | \ |
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| | 909 | <signature of Ty Coon>, 1 April 1989\ |
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| | 910 | Ty Coon, President of Vice\ |
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| | 911 | \ |
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| | 912 | This General Public License does not permit incorporating your program into\ |
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| | 913 | proprietary programs. If your program is a subroutine library, you may\ |
|---|
| | 914 | consider it more useful to permit linking proprietary applications with the\ |
|---|
| | 915 | library. If this is what you want to do, use the GNU Library General\ |
|---|
| | 916 | Public License instead of this License.\ |
|---|