c@135: GNU GENERAL PUBLIC LICENSE c@135: Version 2, June 1991 c@135: c@135: Copyright (C) 1989, 1991 Free Software Foundation, Inc. c@135: 675 Mass Ave, Cambridge, MA 02139, USA c@135: Everyone is permitted to copy and distribute verbatim copies c@135: of this license document, but changing it is not allowed. c@135: c@135: Preamble c@135: c@135: The licenses for most software are designed to take away your c@135: freedom to share and change it. By contrast, the GNU General Public c@135: License is intended to guarantee your freedom to share and change free c@135: software--to make sure the software is free for all its users. This c@135: General Public License applies to most of the Free Software c@135: Foundation's software and to any other program whose authors commit to c@135: using it. (Some other Free Software Foundation software is covered by c@135: the GNU Library General Public License instead.) You can apply it to c@135: your programs, too. c@135: c@135: When we speak of free software, we are referring to freedom, not c@135: price. Our General Public Licenses are designed to make sure that you c@135: have the freedom to distribute copies of free software (and charge for c@135: this service if you wish), that you receive source code or can get it c@135: if you want it, that you can change the software or use pieces of it c@135: in new free programs; and that you know you can do these things. c@135: c@135: To protect your rights, we need to make restrictions that forbid c@135: anyone to deny you these rights or to ask you to surrender the rights. c@135: These restrictions translate to certain responsibilities for you if you c@135: distribute copies of the software, or if you modify it. c@135: c@135: For example, if you distribute copies of such a program, whether c@135: gratis or for a fee, you must give the recipients all the rights that c@135: you have. You must make sure that they, too, receive or can get the c@135: source code. And you must show them these terms so they know their c@135: rights. c@135: c@135: We protect your rights with two steps: (1) copyright the software, and c@135: (2) offer you this license which gives you legal permission to copy, c@135: distribute and/or modify the software. c@135: c@135: Also, for each author's protection and ours, we want to make certain c@135: that everyone understands that there is no warranty for this free c@135: software. If the software is modified by someone else and passed on, we c@135: want its recipients to know that what they have is not the original, so c@135: that any problems introduced by others will not reflect on the original c@135: authors' reputations. c@135: c@135: Finally, any free program is threatened constantly by software c@135: patents. We wish to avoid the danger that redistributors of a free c@135: program will individually obtain patent licenses, in effect making the c@135: program proprietary. To prevent this, we have made it clear that any c@135: patent must be licensed for everyone's free use or not licensed at all. c@135: c@135: The precise terms and conditions for copying, distribution and c@135: modification follow. c@135: c@135: GNU GENERAL PUBLIC LICENSE c@135: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION c@135: c@135: 0. This License applies to any program or other work which contains c@135: a notice placed by the copyright holder saying it may be distributed c@135: under the terms of this General Public License. The "Program", below, c@135: refers to any such program or work, and a "work based on the Program" c@135: means either the Program or any derivative work under copyright law: c@135: that is to say, a work containing the Program or a portion of it, c@135: either verbatim or with modifications and/or translated into another c@135: language. (Hereinafter, translation is included without limitation in c@135: the term "modification".) Each licensee is addressed as "you". c@135: c@135: Activities other than copying, distribution and modification are not c@135: covered by this License; they are outside its scope. The act of c@135: running the Program is not restricted, and the output from the Program c@135: is covered only if its contents constitute a work based on the c@135: Program (independent of having been made by running the Program). c@135: Whether that is true depends on what the Program does. c@135: c@135: 1. You may copy and distribute verbatim copies of the Program's c@135: source code as you receive it, in any medium, provided that you c@135: conspicuously and appropriately publish on each copy an appropriate c@135: copyright notice and disclaimer of warranty; keep intact all the c@135: notices that refer to this License and to the absence of any warranty; c@135: and give any other recipients of the Program a copy of this License c@135: along with the Program. c@135: c@135: You may charge a fee for the physical act of transferring a copy, and c@135: you may at your option offer warranty protection in exchange for a fee. c@135: c@135: 2. You may modify your copy or copies of the Program or any portion c@135: of it, thus forming a work based on the Program, and copy and c@135: distribute such modifications or work under the terms of Section 1 c@135: above, provided that you also meet all of these conditions: c@135: c@135: a) You must cause the modified files to carry prominent notices c@135: stating that you changed the files and the date of any change. c@135: c@135: b) You must cause any work that you distribute or publish, that in c@135: whole or in part contains or is derived from the Program or any c@135: part thereof, to be licensed as a whole at no charge to all third c@135: parties under the terms of this License. c@135: c@135: c) If the modified program normally reads commands interactively c@135: when run, you must cause it, when started running for such c@135: interactive use in the most ordinary way, to print or display an c@135: announcement including an appropriate copyright notice and a c@135: notice that there is no warranty (or else, saying that you provide c@135: a warranty) and that users may redistribute the program under c@135: these conditions, and telling the user how to view a copy of this c@135: License. (Exception: if the Program itself is interactive but c@135: does not normally print such an announcement, your work based on c@135: the Program is not required to print an announcement.) c@135: c@135: These requirements apply to the modified work as a whole. If c@135: identifiable sections of that work are not derived from the Program, c@135: and can be reasonably considered independent and separate works in c@135: themselves, then this License, and its terms, do not apply to those c@135: sections when you distribute them as separate works. But when you c@135: distribute the same sections as part of a whole which is a work based c@135: on the Program, the distribution of the whole must be on the terms of c@135: this License, whose permissions for other licensees extend to the c@135: entire whole, and thus to each and every part regardless of who wrote it. c@135: c@135: Thus, it is not the intent of this section to claim rights or contest c@135: your rights to work written entirely by you; rather, the intent is to c@135: exercise the right to control the distribution of derivative or c@135: collective works based on the Program. c@135: c@135: In addition, mere aggregation of another work not based on the Program c@135: with the Program (or with a work based on the Program) on a volume of c@135: a storage or distribution medium does not bring the other work under c@135: the scope of this License. c@135: c@135: 3. You may copy and distribute the Program (or a work based on it, c@135: under Section 2) in object code or executable form under the terms of c@135: Sections 1 and 2 above provided that you also do one of the following: c@135: c@135: a) Accompany it with the complete corresponding machine-readable c@135: source code, which must be distributed under the terms of Sections c@135: 1 and 2 above on a medium customarily used for software interchange; or, c@135: c@135: b) Accompany it with a written offer, valid for at least three c@135: years, to give any third party, for a charge no more than your c@135: cost of physically performing source distribution, a complete c@135: machine-readable copy of the corresponding source code, to be c@135: distributed under the terms of Sections 1 and 2 above on a medium c@135: customarily used for software interchange; or, c@135: c@135: c) Accompany it with the information you received as to the offer c@135: to distribute corresponding source code. (This alternative is c@135: allowed only for noncommercial distribution and only if you c@135: received the program in object code or executable form with such c@135: an offer, in accord with Subsection b above.) c@135: c@135: The source code for a work means the preferred form of the work for c@135: making modifications to it. For an executable work, complete source c@135: code means all the source code for all modules it contains, plus any c@135: associated interface definition files, plus the scripts used to c@135: control compilation and installation of the executable. However, as a c@135: special exception, the source code distributed need not include c@135: anything that is normally distributed (in either source or binary c@135: form) with the major components (compiler, kernel, and so on) of the c@135: operating system on which the executable runs, unless that component c@135: itself accompanies the executable. c@135: c@135: If distribution of executable or object code is made by offering c@135: access to copy from a designated place, then offering equivalent c@135: access to copy the source code from the same place counts as c@135: distribution of the source code, even though third parties are not c@135: compelled to copy the source along with the object code. c@135: c@135: 4. You may not copy, modify, sublicense, or distribute the Program c@135: except as expressly provided under this License. Any attempt c@135: otherwise to copy, modify, sublicense or distribute the Program is c@135: void, and will automatically terminate your rights under this License. c@135: However, parties who have received copies, or rights, from you under c@135: this License will not have their licenses terminated so long as such c@135: parties remain in full compliance. c@135: c@135: 5. You are not required to accept this License, since you have not c@135: signed it. However, nothing else grants you permission to modify or c@135: distribute the Program or its derivative works. These actions are c@135: prohibited by law if you do not accept this License. Therefore, by c@135: modifying or distributing the Program (or any work based on the c@135: Program), you indicate your acceptance of this License to do so, and c@135: all its terms and conditions for copying, distributing or modifying c@135: the Program or works based on it. c@135: c@135: 6. Each time you redistribute the Program (or any work based on the c@135: Program), the recipient automatically receives a license from the c@135: original licensor to copy, distribute or modify the Program subject to c@135: these terms and conditions. You may not impose any further c@135: restrictions on the recipients' exercise of the rights granted herein. c@135: You are not responsible for enforcing compliance by third parties to c@135: this License. c@135: c@135: 7. If, as a consequence of a court judgment or allegation of patent c@135: infringement or for any other reason (not limited to patent issues), c@135: conditions are imposed on you (whether by court order, agreement or c@135: otherwise) that contradict the conditions of this License, they do not c@135: excuse you from the conditions of this License. If you cannot c@135: distribute so as to satisfy simultaneously your obligations under this c@135: License and any other pertinent obligations, then as a consequence you c@135: may not distribute the Program at all. For example, if a patent c@135: license would not permit royalty-free redistribution of the Program by c@135: all those who receive copies directly or indirectly through you, then c@135: the only way you could satisfy both it and this License would be to c@135: refrain entirely from distribution of the Program. c@135: c@135: If any portion of this section is held invalid or unenforceable under c@135: any particular circumstance, the balance of the section is intended to c@135: apply and the section as a whole is intended to apply in other c@135: circumstances. c@135: c@135: It is not the purpose of this section to induce you to infringe any c@135: patents or other property right claims or to contest validity of any c@135: such claims; this section has the sole purpose of protecting the c@135: integrity of the free software distribution system, which is c@135: implemented by public license practices. Many people have made c@135: generous contributions to the wide range of software distributed c@135: through that system in reliance on consistent application of that c@135: system; it is up to the author/donor to decide if he or she is willing c@135: to distribute software through any other system and a licensee cannot c@135: impose that choice. c@135: c@135: This section is intended to make thoroughly clear what is believed to c@135: be a consequence of the rest of this License. c@135: c@135: 8. If the distribution and/or use of the Program is restricted in c@135: certain countries either by patents or by copyrighted interfaces, the c@135: original copyright holder who places the Program under this License c@135: may add an explicit geographical distribution limitation excluding c@135: those countries, so that distribution is permitted only in or among c@135: countries not thus excluded. In such case, this License incorporates c@135: the limitation as if written in the body of this License. c@135: c@135: 9. The Free Software Foundation may publish revised and/or new versions c@135: of the General Public License from time to time. Such new versions will c@135: be similar in spirit to the present version, but may differ in detail to c@135: address new problems or concerns. c@135: c@135: Each version is given a distinguishing version number. If the Program c@135: specifies a version number of this License which applies to it and "any c@135: later version", you have the option of following the terms and conditions c@135: either of that version or of any later version published by the Free c@135: Software Foundation. If the Program does not specify a version number of c@135: this License, you may choose any version ever published by the Free Software c@135: Foundation. c@135: c@135: 10. If you wish to incorporate parts of the Program into other free c@135: programs whose distribution conditions are different, write to the author c@135: to ask for permission. For software which is copyrighted by the Free c@135: Software Foundation, write to the Free Software Foundation; we sometimes c@135: make exceptions for this. Our decision will be guided by the two goals c@135: of preserving the free status of all derivatives of our free software and c@135: of promoting the sharing and reuse of software generally. c@135: c@135: NO WARRANTY c@135: c@135: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY c@135: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN c@135: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES c@135: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED c@135: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF c@135: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS c@135: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE c@135: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, c@135: REPAIR OR CORRECTION. c@135: c@135: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING c@135: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR c@135: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, c@135: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING c@135: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED c@135: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY c@135: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER c@135: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE c@135: POSSIBILITY OF SUCH DAMAGES. c@135: c@135: END OF TERMS AND CONDITIONS