Version 2, June 1991
joachim99@69: joachim99@69:Copyright (C) 1989, 1991 Free Software Foundation, Inc.
joachim99@80: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
joachim99@69: Everyone is permitted to copy and distribute verbatim copies
joachim99@69: of this license document, but changing it is not allowed.
The licenses for most software are designed to take away your joachim99@69: freedom to share and change it. By contrast, the GNU General Public joachim99@69: License is intended to guarantee your freedom to share and change free joachim99@69: software--to make sure the software is free for all its users. This joachim99@69: General Public License applies to most of the Free Software joachim99@69: Foundation's software and to any other program whose authors commit to joachim99@69: using it. (Some other Free Software Foundation software is covered by joachim99@69: the GNU Library General Public License instead.) You can apply it to joachim99@69: your programs, too.
joachim99@69: joachim99@69:When we speak of free software, we are referring to freedom, not joachim99@69: price. Our General Public Licenses are designed to make sure that you joachim99@69: have the freedom to distribute copies of free software (and charge for joachim99@69: this service if you wish), that you receive source code or can get it joachim99@69: if you want it, that you can change the software or use pieces of it joachim99@69: in new free programs; and that you know you can do these things.
joachim99@69: joachim99@69:To protect your rights, we need to make restrictions that forbid joachim99@69: anyone to deny you these rights or to ask you to surrender the rights. joachim99@69: These restrictions translate to certain responsibilities for you if you joachim99@69: distribute copies of the software, or if you modify it.
joachim99@69: joachim99@69:For example, if you distribute copies of such a program, whether joachim99@69: gratis or for a fee, you must give the recipients all the rights that joachim99@69: you have. You must make sure that they, too, receive or can get the joachim99@69: source code. And you must show them these terms so they know their joachim99@69: rights.
joachim99@69: joachim99@69:We protect your rights with two steps: (1) copyright the software, and joachim99@69: (2) offer you this license which gives you legal permission to copy, joachim99@69: distribute and/or modify the software.
joachim99@69: joachim99@69:Also, for each author's protection and ours, we want to make certain joachim99@69: that everyone understands that there is no warranty for this free joachim99@69: software. If the software is modified by someone else and passed on, we joachim99@69: want its recipients to know that what they have is not the original, so joachim99@69: that any problems introduced by others will not reflect on the original joachim99@69: authors' reputations.
joachim99@69: joachim99@69:Finally, any free program is threatened constantly by software joachim99@69: patents. We wish to avoid the danger that redistributors of a free joachim99@69: program will individually obtain patent licenses, in effect making the joachim99@69: program proprietary. To prevent this, we have made it clear that any joachim99@69: patent must be licensed for everyone's free use or not licensed at all.
joachim99@69: joachim99@69:The precise terms and conditions for copying, distribution and joachim99@69: modification follow.
joachim99@69: joachim99@69:0. This License applies to any program or other work which contains joachim99@69: a notice placed by the copyright holder saying it may be distributed joachim99@69: under the terms of this General Public License. The "Program", below, joachim99@69: refers to any such program or work, and a "work based on the Program" joachim99@69: means either the Program or any derivative work under copyright law: joachim99@69: that is to say, a work containing the Program or a portion of it, joachim99@69: either verbatim or with modifications and/or translated into another joachim99@69: language. (Hereinafter, translation is included without limitation in joachim99@69: the term "modification".) Each licensee is addressed as "you".
joachim99@69: joachim99@69:Activities other than copying, distribution and modification are not joachim99@69: covered by this License; they are outside its scope. The act of joachim99@69: running the Program is not restricted, and the output from the Program joachim99@69: is covered only if its contents constitute a work based on the joachim99@69: Program (independent of having been made by running the Program). joachim99@69: Whether that is true depends on what the Program does.
joachim99@69: joachim99@69:1. You may copy and distribute verbatim copies of the Program's joachim99@69: source code as you receive it, in any medium, provided that you joachim99@69: conspicuously and appropriately publish on each copy an appropriate joachim99@69: copyright notice and disclaimer of warranty; keep intact all the joachim99@69: notices that refer to this License and to the absence of any warranty; joachim99@69: and give any other recipients of the Program a copy of this License joachim99@69: along with the Program.
joachim99@69: joachim99@69:You may charge a fee for the physical act of transferring a copy, and joachim99@69: you may at your option offer warranty protection in exchange for a fee.
joachim99@69: joachim99@69:2. You may modify your copy or copies of the Program or any portion joachim99@69: of it, thus forming a work based on the Program, and copy and joachim99@69: distribute such modifications or work under the terms of Section 1 joachim99@69: above, provided that you also meet all of these conditions:
joachim99@69: joachim99@69:You must cause the modified files to carry prominent notices joachim99@69: stating that you changed the files and the date of any change.
joachim99@69:You must cause any work that you distribute or publish, that in joachim99@69: whole or in part contains or is derived from the Program or any joachim99@69: part thereof, to be licensed as a whole at no charge to all third joachim99@69: parties under the terms of this License.
joachim99@69:If the modified program normally reads commands interactively joachim99@69: when run, you must cause it, when started running for such joachim99@69: interactive use in the most ordinary way, to print or display an joachim99@69: announcement including an appropriate copyright notice and a joachim99@69: notice that there is no warranty (or else, saying that you provide joachim99@69: a warranty) and that users may redistribute the program under joachim99@69: these conditions, and telling the user how to view a copy of this joachim99@69: License. (Exception: if the Program itself is interactive but joachim99@69: does not normally print such an announcement, your work based on joachim99@69: the Program is not required to print an announcement.)
joachim99@69:These requirements apply to the modified work as a whole. If joachim99@69: identifiable sections of that work are not derived from the Program, joachim99@69: and can be reasonably considered independent and separate works in joachim99@69: themselves, then this License, and its terms, do not apply to those joachim99@69: sections when you distribute them as separate works. But when you joachim99@69: distribute the same sections as part of a whole which is a work based joachim99@69: on the Program, the distribution of the whole must be on the terms of joachim99@69: this License, whose permissions for other licensees extend to the joachim99@69: entire whole, and thus to each and every part regardless of who wrote it.
joachim99@69: joachim99@69:Thus, it is not the intent of this section to claim rights or contest joachim99@69: your rights to work written entirely by you; rather, the intent is to joachim99@69: exercise the right to control the distribution of derivative or joachim99@69: collective works based on the Program.
joachim99@69: joachim99@69:In addition, mere aggregation of another work not based on the Program joachim99@69: with the Program (or with a work based on the Program) on a volume of joachim99@69: a storage or distribution medium does not bring the other work under joachim99@69: the scope of this License.
joachim99@69: joachim99@69:3. You may copy and distribute the Program (or a work based on it, joachim99@69: under Section 2) in object code or executable form under the terms of joachim99@69: Sections 1 and 2 above provided that you also do one of the following:
joachim99@69: joachim99@69:Accompany it with the complete corresponding machine-readable joachim99@69: source code, which must be distributed under the terms of Sections joachim99@69: 1 and 2 above on a medium customarily used for software interchange; or,
joachim99@69:Accompany it with a written offer, valid for at least three joachim99@69: years, to give any third party, for a charge no more than your joachim99@69: cost of physically performing source distribution, a complete joachim99@69: machine-readable copy of the corresponding source code, to be joachim99@69: distributed under the terms of Sections 1 and 2 above on a medium joachim99@69: customarily used for software interchange; or,
joachim99@69:Accompany it with the information you received as to the offer joachim99@69: to distribute corresponding source code. (This alternative is joachim99@69: allowed only for noncommercial distribution and only if you joachim99@69: received the program in object code or executable form with such joachim99@69: an offer, in accord with Subsection b above.)
joachim99@69:The source code for a work means the preferred form of the work for joachim99@69: making modifications to it. For an executable work, complete source joachim99@69: code means all the source code for all modules it contains, plus any joachim99@69: associated interface definition files, plus the scripts used to joachim99@69: control compilation and installation of the executable. However, as a joachim99@69: special exception, the source code distributed need not include joachim99@69: anything that is normally distributed (in either source or binary joachim99@69: form) with the major components (compiler, kernel, and so on) of the joachim99@69: operating system on which the executable runs, unless that component joachim99@69: itself accompanies the executable.
joachim99@69: joachim99@69:If distribution of executable or object code is made by offering joachim99@69: access to copy from a designated place, then offering equivalent joachim99@69: access to copy the source code from the same place counts as joachim99@69: distribution of the source code, even though third parties are not joachim99@69: compelled to copy the source along with the object code.
joachim99@69: joachim99@69:4. You may not copy, modify, sublicense, or distribute the Program joachim99@69: except as expressly provided under this License. Any attempt joachim99@69: otherwise to copy, modify, sublicense or distribute the Program is joachim99@69: void, and will automatically terminate your rights under this License. joachim99@69: However, parties who have received copies, or rights, from you under joachim99@69: this License will not have their licenses terminated so long as such joachim99@69: parties remain in full compliance.
joachim99@69: joachim99@69:5. You are not required to accept this License, since you have not joachim99@69: signed it. However, nothing else grants you permission to modify or joachim99@69: distribute the Program or its derivative works. These actions are joachim99@69: prohibited by law if you do not accept this License. Therefore, by joachim99@69: modifying or distributing the Program (or any work based on the joachim99@69: Program), you indicate your acceptance of this License to do so, and joachim99@69: all its terms and conditions for copying, distributing or modifying joachim99@69: the Program or works based on it.
joachim99@69: joachim99@69:6. Each time you redistribute the Program (or any work based on the joachim99@69: Program), the recipient automatically receives a license from the joachim99@69: original licensor to copy, distribute or modify the Program subject to joachim99@69: these terms and conditions. You may not impose any further joachim99@69: restrictions on the recipients' exercise of the rights granted herein. joachim99@69: You are not responsible for enforcing compliance by third parties to joachim99@69: this License.
joachim99@69: joachim99@69:7. If, as a consequence of a court judgment or allegation of patent joachim99@69: infringement or for any other reason (not limited to patent issues), joachim99@69: conditions are imposed on you (whether by court order, agreement or joachim99@69: otherwise) that contradict the conditions of this License, they do not joachim99@69: excuse you from the conditions of this License. If you cannot joachim99@69: distribute so as to satisfy simultaneously your obligations under this joachim99@69: License and any other pertinent obligations, then as a consequence you joachim99@69: may not distribute the Program at all. For example, if a patent joachim99@69: license would not permit royalty-free redistribution of the Program by joachim99@69: all those who receive copies directly or indirectly through you, then joachim99@69: the only way you could satisfy both it and this License would be to joachim99@69: refrain entirely from distribution of the Program.
joachim99@69: joachim99@69:If any portion of this section is held invalid or unenforceable under joachim99@69: any particular circumstance, the balance of the section is intended to joachim99@69: apply and the section as a whole is intended to apply in other joachim99@69: circumstances.
joachim99@69: joachim99@69:It is not the purpose of this section to induce you to infringe any joachim99@69: patents or other property right claims or to contest validity of any joachim99@69: such claims; this section has the sole purpose of protecting the joachim99@69: integrity of the free software distribution system, which is joachim99@69: implemented by public license practices. Many people have made joachim99@69: generous contributions to the wide range of software distributed joachim99@69: through that system in reliance on consistent application of that joachim99@69: system; it is up to the author/donor to decide if he or she is willing joachim99@69: to distribute software through any other system and a licensee cannot joachim99@69: impose that choice.
joachim99@69: joachim99@69:This section is intended to make thoroughly clear what is believed to joachim99@69: be a consequence of the rest of this License.
joachim99@69: joachim99@69:8. If the distribution and/or use of the Program is restricted in joachim99@69: certain countries either by patents or by copyrighted interfaces, the joachim99@69: original copyright holder who places the Program under this License joachim99@69: may add an explicit geographical distribution limitation excluding joachim99@69: those countries, so that distribution is permitted only in or among joachim99@69: countries not thus excluded. In such case, this License incorporates joachim99@69: the limitation as if written in the body of this License.
joachim99@69: joachim99@69:9. The Free Software Foundation may publish revised and/or new versions joachim99@69: of the General Public License from time to time. Such new versions will joachim99@69: be similar in spirit to the present version, but may differ in detail to joachim99@69: address new problems or concerns.
joachim99@69: joachim99@69:Each version is given a distinguishing version number. If the Program joachim99@69: specifies a version number of this License which applies to it and "any joachim99@69: later version", you have the option of following the terms and conditions joachim99@69: either of that version or of any later version published by the Free joachim99@69: Software Foundation. If the Program does not specify a version number of joachim99@69: this License, you may choose any version ever published by the Free Software joachim99@69: Foundation.
joachim99@69: joachim99@69:10. If you wish to incorporate parts of the Program into other free joachim99@69: programs whose distribution conditions are different, write to the author joachim99@69: to ask for permission. For software which is copyrighted by the Free joachim99@69: Software Foundation, write to the Free Software Foundation; we sometimes joachim99@69: make exceptions for this. Our decision will be guided by the two goals joachim99@69: of preserving the free status of all derivatives of our free software and joachim99@69: of promoting the sharing and reuse of software generally.
joachim99@69: joachim99@69:11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY joachim99@69: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN joachim99@69: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES joachim99@69: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED joachim99@69: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF joachim99@69: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS joachim99@69: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE joachim99@69: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, joachim99@69: REPAIR OR CORRECTION.
joachim99@69: joachim99@69:12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING joachim99@69: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR joachim99@69: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, joachim99@69: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING joachim99@69: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED joachim99@69: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY joachim99@69: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER joachim99@69: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE joachim99@69: POSSIBILITY OF SUCH DAMAGES.
joachim99@69: joachim99@69:If you develop a new program, and you want it to be of the greatest joachim99@69: possible use to the public, the best way to achieve this is to make it joachim99@69: free software which everyone can redistribute and change under these joachim99@69: terms.
joachim99@69: joachim99@69: joachim99@69:To do so, attach the following notices to the program. It is joachim99@69: safest to attach them to the start of each source file to most joachim99@69: effectively convey the exclusion of warranty; and each file should joachim99@69: have at least the "copyright" line and a pointer to where the full joachim99@69: notice is found.
joachim99@69: joachim99@69: joachim99@69:<one line to give the program's name and a brief idea of what it does.> joachim99@69: Copyright (C) 19yy <name of author> joachim99@69: joachim99@69: This program is free software; you can redistribute it and/or modify joachim99@69: it under the terms of the GNU General Public License as published by joachim99@69: the Free Software Foundation; either version 2 of the License, or joachim99@69: (at your option) any later version. joachim99@69: joachim99@69: This program is distributed in the hope that it will be useful, joachim99@69: but WITHOUT ANY WARRANTY; without even the implied warranty of joachim99@69: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the joachim99@69: GNU General Public License for more details. joachim99@69: joachim99@69: You should have received a copy of the GNU General Public License joachim99@69: along with this program; if not, write to the Free Software joachim99@80: Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USAjoachim99@69: joachim99@69:
Also add information on how to contact you by electronic and paper joachim99@69: mail.
joachim99@69: joachim99@69:If the program is interactive, make it output a short notice like this joachim99@69: when it starts in an interactive mode:
joachim99@69: joachim99@69:Gnomovision version 69, Copyright (C) 19yy name of author joachim99@69: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. joachim99@69: This is free software, and you are welcome to redistribute it joachim99@69: under certain conditions; type `show c' for details.joachim99@69: joachim99@69:
The hypothetical commands "show w" and "show c" should show the appropriate joachim99@69: parts of the General Public License. Of course, the commands you use may joachim99@69: be called something other than "show w" and "show c"; they could even be joachim99@69: mouse-clicks or menu items--whatever suits your program.
joachim99@69: joachim99@69:You should also get your employer (if you work as a programmer) or your joachim99@69: school, if any, to sign a "copyright disclaimer" for the program, if joachim99@69: necessary. Here is a sample; alter the names:
joachim99@69: joachim99@69:Yoyodyne, Inc., hereby disclaims all copyright interest in the program joachim99@69: `Gnomovision' (which makes passes at compilers) written by James Hacker. joachim99@69: joachim99@69: <signature of Ty Coon>, 1 April 1989 joachim99@69: Ty Coon, President of Vicejoachim99@69: joachim99@69:
This General Public License does not permit incorporating your program into joachim99@69: proprietary programs. If your program is a subroutine library, you may joachim99@69: consider it more useful to permit linking proprietary applications with the joachim99@69: library. If this is what you want to do, use the GNU Library General joachim99@69: Public License instead of this License.
joachim99@69: joachim99@69: joachim99@69: joachim99@69: joachim99@69: