cannam@127: GNU GENERAL PUBLIC LICENSE cannam@127: Version 2, June 1991 cannam@127: cannam@127: Copyright (C) 1989, 1991 Free Software Foundation, Inc. cannam@127: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA cannam@127: Everyone is permitted to copy and distribute verbatim copies cannam@127: of this license document, but changing it is not allowed. cannam@127: cannam@127: Preamble cannam@127: cannam@127: The licenses for most software are designed to take away your cannam@127: freedom to share and change it. By contrast, the GNU General Public cannam@127: License is intended to guarantee your freedom to share and change free cannam@127: software--to make sure the software is free for all its users. This cannam@127: General Public License applies to most of the Free Software cannam@127: Foundation's software and to any other program whose authors commit to cannam@127: using it. (Some other Free Software Foundation software is covered by cannam@127: the GNU Library General Public License instead.) You can apply it to cannam@127: your programs, too. cannam@127: cannam@127: When we speak of free software, we are referring to freedom, not cannam@127: price. Our General Public Licenses are designed to make sure that you cannam@127: have the freedom to distribute copies of free software (and charge for cannam@127: this service if you wish), that you receive source code or can get it cannam@127: if you want it, that you can change the software or use pieces of it cannam@127: in new free programs; and that you know you can do these things. cannam@127: cannam@127: To protect your rights, we need to make restrictions that forbid cannam@127: anyone to deny you these rights or to ask you to surrender the rights. cannam@127: These restrictions translate to certain responsibilities for you if you cannam@127: distribute copies of the software, or if you modify it. cannam@127: cannam@127: For example, if you distribute copies of such a program, whether cannam@127: gratis or for a fee, you must give the recipients all the rights that cannam@127: you have. You must make sure that they, too, receive or can get the cannam@127: source code. And you must show them these terms so they know their cannam@127: rights. cannam@127: cannam@127: We protect your rights with two steps: (1) copyright the software, and cannam@127: (2) offer you this license which gives you legal permission to copy, cannam@127: distribute and/or modify the software. cannam@127: cannam@127: Also, for each author's protection and ours, we want to make certain cannam@127: that everyone understands that there is no warranty for this free cannam@127: software. If the software is modified by someone else and passed on, we cannam@127: want its recipients to know that what they have is not the original, so cannam@127: that any problems introduced by others will not reflect on the original cannam@127: authors' reputations. cannam@127: cannam@127: Finally, any free program is threatened constantly by software cannam@127: patents. We wish to avoid the danger that redistributors of a free cannam@127: program will individually obtain patent licenses, in effect making the cannam@127: program proprietary. To prevent this, we have made it clear that any cannam@127: patent must be licensed for everyone's free use or not licensed at all. cannam@127: cannam@127: The precise terms and conditions for copying, distribution and cannam@127: modification follow. cannam@127: cannam@127: GNU GENERAL PUBLIC LICENSE cannam@127: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION cannam@127: cannam@127: 0. This License applies to any program or other work which contains cannam@127: a notice placed by the copyright holder saying it may be distributed cannam@127: under the terms of this General Public License. The "Program", below, cannam@127: refers to any such program or work, and a "work based on the Program" cannam@127: means either the Program or any derivative work under copyright law: cannam@127: that is to say, a work containing the Program or a portion of it, cannam@127: either verbatim or with modifications and/or translated into another cannam@127: language. (Hereinafter, translation is included without limitation in cannam@127: the term "modification".) Each licensee is addressed as "you". cannam@127: cannam@127: Activities other than copying, distribution and modification are not cannam@127: covered by this License; they are outside its scope. The act of cannam@127: running the Program is not restricted, and the output from the Program cannam@127: is covered only if its contents constitute a work based on the cannam@127: Program (independent of having been made by running the Program). cannam@127: Whether that is true depends on what the Program does. cannam@127: cannam@127: 1. You may copy and distribute verbatim copies of the Program's cannam@127: source code as you receive it, in any medium, provided that you cannam@127: conspicuously and appropriately publish on each copy an appropriate cannam@127: copyright notice and disclaimer of warranty; keep intact all the cannam@127: notices that refer to this License and to the absence of any warranty; cannam@127: and give any other recipients of the Program a copy of this License cannam@127: along with the Program. cannam@127: cannam@127: You may charge a fee for the physical act of transferring a copy, and cannam@127: you may at your option offer warranty protection in exchange for a fee. cannam@127: cannam@127: 2. You may modify your copy or copies of the Program or any portion cannam@127: of it, thus forming a work based on the Program, and copy and cannam@127: distribute such modifications or work under the terms of Section 1 cannam@127: above, provided that you also meet all of these conditions: cannam@127: cannam@127: a) You must cause the modified files to carry prominent notices cannam@127: stating that you changed the files and the date of any change. cannam@127: cannam@127: b) You must cause any work that you distribute or publish, that in cannam@127: whole or in part contains or is derived from the Program or any cannam@127: part thereof, to be licensed as a whole at no charge to all third cannam@127: parties under the terms of this License. cannam@127: cannam@127: c) If the modified program normally reads commands interactively cannam@127: when run, you must cause it, when started running for such cannam@127: interactive use in the most ordinary way, to print or display an cannam@127: announcement including an appropriate copyright notice and a cannam@127: notice that there is no warranty (or else, saying that you provide cannam@127: a warranty) and that users may redistribute the program under cannam@127: these conditions, and telling the user how to view a copy of this cannam@127: License. (Exception: if the Program itself is interactive but cannam@127: does not normally print such an announcement, your work based on cannam@127: the Program is not required to print an announcement.) cannam@127: cannam@127: These requirements apply to the modified work as a whole. If cannam@127: identifiable sections of that work are not derived from the Program, cannam@127: and can be reasonably considered independent and separate works in cannam@127: themselves, then this License, and its terms, do not apply to those cannam@127: sections when you distribute them as separate works. But when you cannam@127: distribute the same sections as part of a whole which is a work based cannam@127: on the Program, the distribution of the whole must be on the terms of cannam@127: this License, whose permissions for other licensees extend to the cannam@127: entire whole, and thus to each and every part regardless of who wrote it. cannam@127: cannam@127: Thus, it is not the intent of this section to claim rights or contest cannam@127: your rights to work written entirely by you; rather, the intent is to cannam@127: exercise the right to control the distribution of derivative or cannam@127: collective works based on the Program. cannam@127: cannam@127: In addition, mere aggregation of another work not based on the Program cannam@127: with the Program (or with a work based on the Program) on a volume of cannam@127: a storage or distribution medium does not bring the other work under cannam@127: the scope of this License. cannam@127: cannam@127: 3. You may copy and distribute the Program (or a work based on it, cannam@127: under Section 2) in object code or executable form under the terms of cannam@127: Sections 1 and 2 above provided that you also do one of the following: cannam@127: cannam@127: a) Accompany it with the complete corresponding machine-readable cannam@127: source code, which must be distributed under the terms of Sections cannam@127: 1 and 2 above on a medium customarily used for software interchange; or, cannam@127: cannam@127: b) Accompany it with a written offer, valid for at least three cannam@127: years, to give any third party, for a charge no more than your cannam@127: cost of physically performing source distribution, a complete cannam@127: machine-readable copy of the corresponding source code, to be cannam@127: distributed under the terms of Sections 1 and 2 above on a medium cannam@127: customarily used for software interchange; or, cannam@127: cannam@127: c) Accompany it with the information you received as to the offer cannam@127: to distribute corresponding source code. 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Any attempt cannam@127: otherwise to copy, modify, sublicense or distribute the Program is cannam@127: void, and will automatically terminate your rights under this License. cannam@127: However, parties who have received copies, or rights, from you under cannam@127: this License will not have their licenses terminated so long as such cannam@127: parties remain in full compliance. cannam@127: cannam@127: 5. You are not required to accept this License, since you have not cannam@127: signed it. However, nothing else grants you permission to modify or cannam@127: distribute the Program or its derivative works. These actions are cannam@127: prohibited by law if you do not accept this License. Therefore, by cannam@127: modifying or distributing the Program (or any work based on the cannam@127: Program), you indicate your acceptance of this License to do so, and cannam@127: all its terms and conditions for copying, distributing or modifying cannam@127: the Program or works based on it. cannam@127: cannam@127: 6. Each time you redistribute the Program (or any work based on the cannam@127: Program), the recipient automatically receives a license from the cannam@127: original licensor to copy, distribute or modify the Program subject to cannam@127: these terms and conditions. You may not impose any further cannam@127: restrictions on the recipients' exercise of the rights granted herein. cannam@127: You are not responsible for enforcing compliance by third parties to cannam@127: this License. cannam@127: cannam@127: 7. If, as a consequence of a court judgment or allegation of patent cannam@127: infringement or for any other reason (not limited to patent issues), cannam@127: conditions are imposed on you (whether by court order, agreement or cannam@127: otherwise) that contradict the conditions of this License, they do not cannam@127: excuse you from the conditions of this License. If you cannot cannam@127: distribute so as to satisfy simultaneously your obligations under this cannam@127: License and any other pertinent obligations, then as a consequence you cannam@127: may not distribute the Program at all. For example, if a patent cannam@127: license would not permit royalty-free redistribution of the Program by cannam@127: all those who receive copies directly or indirectly through you, then cannam@127: the only way you could satisfy both it and this License would be to cannam@127: refrain entirely from distribution of the Program. cannam@127: cannam@127: If any portion of this section is held invalid or unenforceable under cannam@127: any particular circumstance, the balance of the section is intended to cannam@127: apply and the section as a whole is intended to apply in other cannam@127: circumstances. cannam@127: cannam@127: It is not the purpose of this section to induce you to infringe any cannam@127: patents or other property right claims or to contest validity of any cannam@127: such claims; this section has the sole purpose of protecting the cannam@127: integrity of the free software distribution system, which is cannam@127: implemented by public license practices. Many people have made cannam@127: generous contributions to the wide range of software distributed cannam@127: through that system in reliance on consistent application of that cannam@127: system; it is up to the author/donor to decide if he or she is willing cannam@127: to distribute software through any other system and a licensee cannot cannam@127: impose that choice. cannam@127: cannam@127: This section is intended to make thoroughly clear what is believed to cannam@127: be a consequence of the rest of this License. cannam@127: cannam@127: 8. If the distribution and/or use of the Program is restricted in cannam@127: certain countries either by patents or by copyrighted interfaces, the cannam@127: original copyright holder who places the Program under this License cannam@127: may add an explicit geographical distribution limitation excluding cannam@127: those countries, so that distribution is permitted only in or among cannam@127: countries not thus excluded. In such case, this License incorporates cannam@127: the limitation as if written in the body of this License. cannam@127: cannam@127: 9. The Free Software Foundation may publish revised and/or new versions cannam@127: of the General Public License from time to time. Such new versions will cannam@127: be similar in spirit to the present version, but may differ in detail to cannam@127: address new problems or concerns. cannam@127: cannam@127: Each version is given a distinguishing version number. If the Program cannam@127: specifies a version number of this License which applies to it and "any cannam@127: later version", you have the option of following the terms and conditions cannam@127: either of that version or of any later version published by the Free cannam@127: Software Foundation. If the Program does not specify a version number of cannam@127: this License, you may choose any version ever published by the Free Software cannam@127: Foundation. cannam@127: cannam@127: 10. If you wish to incorporate parts of the Program into other free cannam@127: programs whose distribution conditions are different, write to the author cannam@127: to ask for permission. For software which is copyrighted by the Free cannam@127: Software Foundation, write to the Free Software Foundation; we sometimes cannam@127: make exceptions for this. Our decision will be guided by the two goals cannam@127: of preserving the free status of all derivatives of our free software and cannam@127: of promoting the sharing and reuse of software generally. cannam@127: cannam@127: NO WARRANTY cannam@127: cannam@127: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY cannam@127: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN cannam@127: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES cannam@127: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED cannam@127: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF cannam@127: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS cannam@127: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE cannam@127: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, cannam@127: REPAIR OR CORRECTION. cannam@127: cannam@127: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING cannam@127: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR cannam@127: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, cannam@127: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING cannam@127: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED cannam@127: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY cannam@127: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER cannam@127: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE cannam@127: POSSIBILITY OF SUCH DAMAGES. cannam@127: cannam@127: END OF TERMS AND CONDITIONS cannam@127: cannam@127: How to Apply These Terms to Your New Programs cannam@127: cannam@127: If you develop a new program, and you want it to be of the greatest cannam@127: possible use to the public, the best way to achieve this is to make it cannam@127: free software which everyone can redistribute and change under these terms. cannam@127: cannam@127: To do so, attach the following notices to the program. It is safest cannam@127: to attach them to the start of each source file to most effectively cannam@127: convey the exclusion of warranty; and each file should have at least cannam@127: the "copyright" line and a pointer to where the full notice is found. cannam@127: cannam@127: cannam@127: Copyright (C) cannam@127: cannam@127: This program is free software; you can redistribute it and/or modify cannam@127: it under the terms of the GNU General Public License as published by cannam@127: the Free Software Foundation; either version 2 of the License, or cannam@127: (at your option) any later version. cannam@127: cannam@127: This program is distributed in the hope that it will be useful, cannam@127: but WITHOUT ANY WARRANTY; without even the implied warranty of cannam@127: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the cannam@127: GNU General Public License for more details. cannam@127: cannam@127: You should have received a copy of the GNU General Public License cannam@127: along with this program; if not, write to the Free Software cannam@127: Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA cannam@127: cannam@127: cannam@127: Also add information on how to contact you by electronic and paper mail. cannam@127: cannam@127: If the program is interactive, make it output a short notice like this cannam@127: when it starts in an interactive mode: cannam@127: cannam@127: Gnomovision version 69, Copyright (C) year name of author cannam@127: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. cannam@127: This is free software, and you are welcome to redistribute it cannam@127: under certain conditions; type `show c' for details. cannam@127: cannam@127: The hypothetical commands `show w' and `show c' should show the appropriate cannam@127: parts of the General Public License. Of course, the commands you use may cannam@127: be called something other than `show w' and `show c'; they could even be cannam@127: mouse-clicks or menu items--whatever suits your program. cannam@127: cannam@127: You should also get your employer (if you work as a programmer) or your cannam@127: school, if any, to sign a "copyright disclaimer" for the program, if cannam@127: necessary. Here is a sample; alter the names: cannam@127: cannam@127: Yoyodyne, Inc., hereby disclaims all copyright interest in the program cannam@127: `Gnomovision' (which makes passes at compilers) written by James Hacker. cannam@127: cannam@127: , 1 April 1989 cannam@127: Ty Coon, President of Vice cannam@127: cannam@127: This General Public License does not permit incorporating your program into cannam@127: proprietary programs. If your program is a subroutine library, you may cannam@127: consider it more useful to permit linking proprietary applications with the cannam@127: library. If this is what you want to do, use the GNU Library General cannam@127: Public License instead of this License.