andrej@1512: GNU GENERAL PUBLIC LICENSE andrej@1512: Version 2, June 1991 andrej@1512: andrej@1512: Copyright (C) 1989, 1991 Free Software Foundation, Inc., andrej@1512: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA andrej@1512: Everyone is permitted to copy and distribute verbatim copies andrej@1512: of this license document, but changing it is not allowed. andrej@1512: andrej@1512: Preamble andrej@1512: andrej@1512: The licenses for most software are designed to take away your andrej@1512: freedom to share and change it. By contrast, the GNU General Public andrej@1512: License is intended to guarantee your freedom to share and change free andrej@1512: software--to make sure the software is free for all its users. This andrej@1512: General Public License applies to most of the Free Software andrej@1512: Foundation's software and to any other program whose authors commit to andrej@1512: using it. (Some other Free Software Foundation software is covered by andrej@1512: the GNU Lesser General Public License instead.) You can apply it to andrej@1512: your programs, too. andrej@1512: andrej@1512: When we speak of free software, we are referring to freedom, not andrej@1512: price. Our General Public Licenses are designed to make sure that you andrej@1512: have the freedom to distribute copies of free software (and charge for andrej@1512: this service if you wish), that you receive source code or can get it andrej@1512: if you want it, that you can change the software or use pieces of it andrej@1512: in new free programs; and that you know you can do these things. andrej@1512: andrej@1512: To protect your rights, we need to make restrictions that forbid andrej@1512: anyone to deny you these rights or to ask you to surrender the rights. andrej@1512: These restrictions translate to certain responsibilities for you if you andrej@1512: distribute copies of the software, or if you modify it. andrej@1512: andrej@1512: For example, if you distribute copies of such a program, whether andrej@1512: gratis or for a fee, you must give the recipients all the rights that andrej@1512: you have. You must make sure that they, too, receive or can get the andrej@1512: source code. And you must show them these terms so they know their andrej@1512: rights. andrej@1512: andrej@1512: We protect your rights with two steps: (1) copyright the software, and andrej@1512: (2) offer you this license which gives you legal permission to copy, andrej@1512: distribute and/or modify the software. andrej@1512: andrej@1512: Also, for each author's protection and ours, we want to make certain andrej@1512: that everyone understands that there is no warranty for this free andrej@1512: software. If the software is modified by someone else and passed on, we andrej@1512: want its recipients to know that what they have is not the original, so andrej@1512: that any problems introduced by others will not reflect on the original andrej@1512: authors' reputations. andrej@1512: andrej@1512: Finally, any free program is threatened constantly by software andrej@1512: patents. We wish to avoid the danger that redistributors of a free andrej@1512: program will individually obtain patent licenses, in effect making the andrej@1512: program proprietary. To prevent this, we have made it clear that any andrej@1512: patent must be licensed for everyone's free use or not licensed at all. andrej@1512: andrej@1512: The precise terms and conditions for copying, distribution and andrej@1512: modification follow. andrej@1512: andrej@1512: GNU GENERAL PUBLIC LICENSE andrej@1512: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION andrej@1512: andrej@1512: 0. This License applies to any program or other work which contains andrej@1512: a notice placed by the copyright holder saying it may be distributed andrej@1512: under the terms of this General Public License. The "Program", below, andrej@1512: refers to any such program or work, and a "work based on the Program" andrej@1512: means either the Program or any derivative work under copyright law: andrej@1512: that is to say, a work containing the Program or a portion of it, andrej@1512: either verbatim or with modifications and/or translated into another andrej@1512: language. (Hereinafter, translation is included without limitation in andrej@1512: the term "modification".) Each licensee is addressed as "you". andrej@1512: andrej@1512: Activities other than copying, distribution and modification are not andrej@1512: covered by this License; they are outside its scope. The act of andrej@1512: running the Program is not restricted, and the output from the Program andrej@1512: is covered only if its contents constitute a work based on the andrej@1512: Program (independent of having been made by running the Program). andrej@1512: Whether that is true depends on what the Program does. andrej@1512: andrej@1512: 1. You may copy and distribute verbatim copies of the Program's andrej@1512: source code as you receive it, in any medium, provided that you andrej@1512: conspicuously and appropriately publish on each copy an appropriate andrej@1512: copyright notice and disclaimer of warranty; keep intact all the andrej@1512: notices that refer to this License and to the absence of any warranty; andrej@1512: and give any other recipients of the Program a copy of this License andrej@1512: along with the Program. andrej@1512: andrej@1512: You may charge a fee for the physical act of transferring a copy, and andrej@1512: you may at your option offer warranty protection in exchange for a fee. andrej@1512: andrej@1512: 2. You may modify your copy or copies of the Program or any portion andrej@1512: of it, thus forming a work based on the Program, and copy and andrej@1512: distribute such modifications or work under the terms of Section 1 andrej@1512: above, provided that you also meet all of these conditions: andrej@1512: andrej@1512: a) You must cause the modified files to carry prominent notices andrej@1512: stating that you changed the files and the date of any change. andrej@1512: andrej@1512: b) You must cause any work that you distribute or publish, that in andrej@1512: whole or in part contains or is derived from the Program or any andrej@1512: part thereof, to be licensed as a whole at no charge to all third andrej@1512: parties under the terms of this License. andrej@1512: andrej@1512: c) If the modified program normally reads commands interactively andrej@1512: when run, you must cause it, when started running for such andrej@1512: interactive use in the most ordinary way, to print or display an andrej@1512: announcement including an appropriate copyright notice and a andrej@1512: notice that there is no warranty (or else, saying that you provide andrej@1512: a warranty) and that users may redistribute the program under andrej@1512: these conditions, and telling the user how to view a copy of this andrej@1512: License. (Exception: if the Program itself is interactive but andrej@1512: does not normally print such an announcement, your work based on andrej@1512: the Program is not required to print an announcement.) andrej@1512: andrej@1512: These requirements apply to the modified work as a whole. If andrej@1512: identifiable sections of that work are not derived from the Program, andrej@1512: and can be reasonably considered independent and separate works in andrej@1512: themselves, then this License, and its terms, do not apply to those andrej@1512: sections when you distribute them as separate works. But when you andrej@1512: distribute the same sections as part of a whole which is a work based andrej@1512: on the Program, the distribution of the whole must be on the terms of andrej@1512: this License, whose permissions for other licensees extend to the andrej@1512: entire whole, and thus to each and every part regardless of who wrote it. andrej@1512: andrej@1512: Thus, it is not the intent of this section to claim rights or contest andrej@1512: your rights to work written entirely by you; rather, the intent is to andrej@1512: exercise the right to control the distribution of derivative or andrej@1512: collective works based on the Program. andrej@1512: andrej@1512: In addition, mere aggregation of another work not based on the Program andrej@1512: with the Program (or with a work based on the Program) on a volume of andrej@1512: a storage or distribution medium does not bring the other work under andrej@1512: the scope of this License. andrej@1512: andrej@1512: 3. You may copy and distribute the Program (or a work based on it, andrej@1512: under Section 2) in object code or executable form under the terms of andrej@1512: Sections 1 and 2 above provided that you also do one of the following: andrej@1512: andrej@1512: a) Accompany it with the complete corresponding machine-readable andrej@1512: source code, which must be distributed under the terms of Sections andrej@1512: 1 and 2 above on a medium customarily used for software interchange; or, andrej@1512: andrej@1512: b) Accompany it with a written offer, valid for at least three andrej@1512: years, to give any third party, for a charge no more than your andrej@1512: cost of physically performing source distribution, a complete andrej@1512: machine-readable copy of the corresponding source code, to be andrej@1512: distributed under the terms of Sections 1 and 2 above on a medium andrej@1512: customarily used for software interchange; or, andrej@1512: andrej@1512: c) Accompany it with the information you received as to the offer andrej@1512: to distribute corresponding source code. (This alternative is andrej@1512: allowed only for noncommercial distribution and only if you andrej@1512: received the program in object code or executable form with such andrej@1512: an offer, in accord with Subsection b above.) andrej@1512: andrej@1512: The source code for a work means the preferred form of the work for andrej@1512: making modifications to it. For an executable work, complete source andrej@1512: code means all the source code for all modules it contains, plus any andrej@1512: associated interface definition files, plus the scripts used to andrej@1512: control compilation and installation of the executable. However, as a andrej@1512: special exception, the source code distributed need not include andrej@1512: anything that is normally distributed (in either source or binary andrej@1512: form) with the major components (compiler, kernel, and so on) of the andrej@1512: operating system on which the executable runs, unless that component andrej@1512: itself accompanies the executable. andrej@1512: andrej@1512: If distribution of executable or object code is made by offering andrej@1512: access to copy from a designated place, then offering equivalent andrej@1512: access to copy the source code from the same place counts as andrej@1512: distribution of the source code, even though third parties are not andrej@1512: compelled to copy the source along with the object code. andrej@1512: andrej@1512: 4. You may not copy, modify, sublicense, or distribute the Program andrej@1512: except as expressly provided under this License. Any attempt andrej@1512: otherwise to copy, modify, sublicense or distribute the Program is andrej@1512: void, and will automatically terminate your rights under this License. andrej@1512: However, parties who have received copies, or rights, from you under andrej@1512: this License will not have their licenses terminated so long as such andrej@1512: parties remain in full compliance. andrej@1512: andrej@1512: 5. You are not required to accept this License, since you have not andrej@1512: signed it. However, nothing else grants you permission to modify or andrej@1512: distribute the Program or its derivative works. These actions are andrej@1512: prohibited by law if you do not accept this License. Therefore, by andrej@1512: modifying or distributing the Program (or any work based on the andrej@1512: Program), you indicate your acceptance of this License to do so, and andrej@1512: all its terms and conditions for copying, distributing or modifying andrej@1512: the Program or works based on it. andrej@1512: andrej@1512: 6. Each time you redistribute the Program (or any work based on the andrej@1512: Program), the recipient automatically receives a license from the andrej@1512: original licensor to copy, distribute or modify the Program subject to andrej@1512: these terms and conditions. You may not impose any further andrej@1512: restrictions on the recipients' exercise of the rights granted herein. andrej@1512: You are not responsible for enforcing compliance by third parties to andrej@1512: this License. andrej@1512: andrej@1512: 7. If, as a consequence of a court judgment or allegation of patent andrej@1512: infringement or for any other reason (not limited to patent issues), andrej@1512: conditions are imposed on you (whether by court order, agreement or andrej@1512: otherwise) that contradict the conditions of this License, they do not andrej@1512: excuse you from the conditions of this License. If you cannot andrej@1512: distribute so as to satisfy simultaneously your obligations under this andrej@1512: License and any other pertinent obligations, then as a consequence you andrej@1512: may not distribute the Program at all. For example, if a patent andrej@1512: license would not permit royalty-free redistribution of the Program by andrej@1512: all those who receive copies directly or indirectly through you, then andrej@1512: the only way you could satisfy both it and this License would be to andrej@1512: refrain entirely from distribution of the Program. andrej@1512: andrej@1512: If any portion of this section is held invalid or unenforceable under andrej@1512: any particular circumstance, the balance of the section is intended to andrej@1512: apply and the section as a whole is intended to apply in other andrej@1512: circumstances. andrej@1512: andrej@1512: It is not the purpose of this section to induce you to infringe any andrej@1512: patents or other property right claims or to contest validity of any andrej@1512: such claims; this section has the sole purpose of protecting the andrej@1512: integrity of the free software distribution system, which is andrej@1512: implemented by public license practices. Many people have made andrej@1512: generous contributions to the wide range of software distributed andrej@1512: through that system in reliance on consistent application of that andrej@1512: system; it is up to the author/donor to decide if he or she is willing andrej@1512: to distribute software through any other system and a licensee cannot andrej@1512: impose that choice. andrej@1512: andrej@1512: This section is intended to make thoroughly clear what is believed to andrej@1512: be a consequence of the rest of this License. andrej@1512: andrej@1512: 8. If the distribution and/or use of the Program is restricted in andrej@1512: certain countries either by patents or by copyrighted interfaces, the andrej@1512: original copyright holder who places the Program under this License andrej@1512: may add an explicit geographical distribution limitation excluding andrej@1512: those countries, so that distribution is permitted only in or among andrej@1512: countries not thus excluded. In such case, this License incorporates andrej@1512: the limitation as if written in the body of this License. andrej@1512: andrej@1512: 9. The Free Software Foundation may publish revised and/or new versions andrej@1512: of the General Public License from time to time. Such new versions will andrej@1512: be similar in spirit to the present version, but may differ in detail to andrej@1512: address new problems or concerns. andrej@1512: andrej@1512: Each version is given a distinguishing version number. If the Program andrej@1512: specifies a version number of this License which applies to it and "any andrej@1512: later version", you have the option of following the terms and conditions andrej@1512: either of that version or of any later version published by the Free andrej@1512: Software Foundation. If the Program does not specify a version number of andrej@1512: this License, you may choose any version ever published by the Free Software andrej@1512: Foundation. andrej@1512: andrej@1512: 10. If you wish to incorporate parts of the Program into other free andrej@1512: programs whose distribution conditions are different, write to the author andrej@1512: to ask for permission. For software which is copyrighted by the Free andrej@1512: Software Foundation, write to the Free Software Foundation; we sometimes andrej@1512: make exceptions for this. Our decision will be guided by the two goals andrej@1512: of preserving the free status of all derivatives of our free software and andrej@1512: of promoting the sharing and reuse of software generally. andrej@1512: andrej@1512: NO WARRANTY andrej@1512: andrej@1512: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY andrej@1512: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN andrej@1512: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES andrej@1512: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED andrej@1512: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF andrej@1512: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS andrej@1512: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE andrej@1512: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, andrej@1512: REPAIR OR CORRECTION. andrej@1512: andrej@1512: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING andrej@1512: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR andrej@1512: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, andrej@1512: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING andrej@1512: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED andrej@1512: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY andrej@1512: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER andrej@1512: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE andrej@1512: POSSIBILITY OF SUCH DAMAGES. andrej@1512: andrej@1512: END OF TERMS AND CONDITIONS andrej@1512: andrej@1512: How to Apply These Terms to Your New Programs andrej@1512: andrej@1512: If you develop a new program, and you want it to be of the greatest andrej@1512: possible use to the public, the best way to achieve this is to make it andrej@1512: free software which everyone can redistribute and change under these terms. andrej@1512: andrej@1512: To do so, attach the following notices to the program. It is safest andrej@1512: to attach them to the start of each source file to most effectively andrej@1512: convey the exclusion of warranty; and each file should have at least andrej@1512: the "copyright" line and a pointer to where the full notice is found. andrej@1512: andrej@1512: andrej@1512: Copyright (C) andrej@1512: andrej@1512: This program is free software; you can redistribute it and/or modify andrej@1512: it under the terms of the GNU General Public License as published by andrej@1512: the Free Software Foundation; either version 2 of the License, or andrej@1512: (at your option) any later version. andrej@1512: andrej@1512: This program is distributed in the hope that it will be useful, andrej@1512: but WITHOUT ANY WARRANTY; without even the implied warranty of andrej@1512: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the andrej@1512: GNU General Public License for more details. andrej@1512: andrej@1512: You should have received a copy of the GNU General Public License along andrej@1512: with this program; if not, write to the Free Software Foundation, Inc., andrej@1512: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. andrej@1512: andrej@1512: Also add information on how to contact you by electronic and paper mail. andrej@1512: andrej@1512: If the program is interactive, make it output a short notice like this andrej@1512: when it starts in an interactive mode: andrej@1512: andrej@1512: Gnomovision version 69, Copyright (C) year name of author andrej@1512: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. andrej@1512: This is free software, and you are welcome to redistribute it andrej@1512: under certain conditions; type `show c' for details. andrej@1512: andrej@1512: The hypothetical commands `show w' and `show c' should show the appropriate andrej@1512: parts of the General Public License. Of course, the commands you use may andrej@1512: be called something other than `show w' and `show c'; they could even be andrej@1512: mouse-clicks or menu items--whatever suits your program. andrej@1512: andrej@1512: You should also get your employer (if you work as a programmer) or your andrej@1512: school, if any, to sign a "copyright disclaimer" for the program, if andrej@1512: necessary. Here is a sample; alter the names: andrej@1512: andrej@1512: Yoyodyne, Inc., hereby disclaims all copyright interest in the program andrej@1512: `Gnomovision' (which makes passes at compilers) written by James Hacker. andrej@1512: andrej@1512: , 1 April 1989 andrej@1512: Ty Coon, President of Vice andrej@1512: andrej@1512: This General Public License does not permit incorporating your program into andrej@1512: proprietary programs. If your program is a subroutine library, you may andrej@1512: consider it more useful to permit linking proprietary applications with the andrej@1512: library. If this is what you want to do, use the GNU Lesser General andrej@1512: Public License instead of this License.