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