. GNU GENERAL PUBLIC LICENSE+ Version 2, June 1991 8 Copyright (C) 1989, 1991 Free Software Foundation, Inc.@ 675 Mass Ave, Cambridge, MA 02139, USA= Everyone is permitted to copy and distribute verbatim copies : of this license document, but changing it is not allowed. $ Preamble ? The licenses for most software are designed to take away your D freedom to share and change it. By contrast, the GNU General PublicF License is intended to guarantee your freedom to share and change freeD software--to make sure the software is free for all its users. This; General Public License applies to most of the Free Software F Foundation's software and to any other program whose authors commit toF using it. (Some other Free Software Foundation software is covered byE the GNU Library General Public License instead.) You can apply it to your programs, too. B When we speak of free software, we are referring to freedom, notF price. Our General Public Licenses are designed to make sure that youF have the freedom to distribute copies of free software (and charge forE this service if you wish), that you receive source code or can get it D if you want it, that you can change the software or use pieces of it@ in new free programs; and that you know you can do these things. B To protect your rights, we need to make restrictions that forbidF anyone to deny you these rights or to ask you to surrender the rights.G These restrictions translate to certain responsibilities for you if you 7 distribute copies of the software, or if you modify it. B For example, if you distribute copies of such a program, whetherE gratis or for a fee, you must give the recipients all the rights that D you have. You must make sure that they, too, receive or can get theC source code. And you must show them these terms so they know their rights. H We protect your rights with two steps: (1) copyright the software, andD (2) offer you this license which gives you legal permission to copy,& distribute and/or modify the software. F Also, for each author's protection and ours, we want to make certainA that everyone understands that there is no warranty for this free H software. If the software is modified by someone else and passed on, weG want its recipients to know that what they have is not the original, so G that any problems introduced by others will not reflect on the original authors' reputations. @ Finally, any free program is threatened constantly by softwareC patents. We wish to avoid the danger that redistributors of a free F program will individually obtain patent licenses, in effect making theE program proprietary. To prevent this, we have made it clear that any G patent must be licensed for everyone's free use or not licensed at all. @ The precise terms and conditions for copying, distribution and modification follow. . GNU GENERAL PUBLIC LICENSEB TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION E 0. This License applies to any program or other work which contains D a notice placed by the copyright holder saying it may be distributedF under the terms of this General Public License. The "Program", below,E refers to any such program or work, and a "work based on the Program" D means either the Program or any derivative work under copyright law:A that is to say, a work containing the Program or a portion of it, D either verbatim or with modifications and/or translated into anotherF language. (Hereinafter, translation is included without limitation in? the term "modification".) Each licensee is addressed as "you". D Activities other than copying, distribution and modification are not@ covered by this License; they are outside its scope. The act ofF running the Program is not restricted, and the output from the Program> is covered only if its contents constitute a work based on theA Program (independent of having been made by running the Program). 6 Whether that is true depends on what the Program does. A 1. You may copy and distribute verbatim copies of the Program's ? source code as you receive it, in any medium, provided that you C conspicuously and appropriately publish on each copy an appropriate @ copyright notice and disclaimer of warranty; keep intact all theF notices that refer to this License and to the absence of any warranty;C and give any other recipients of the Program a copy of this License along with the Program. E You may charge a fee for the physical act of transferring a copy, and G you may at your option offer warranty protection in exchange for a fee. E 2. You may modify your copy or copies of the Program or any portion = of it, thus forming a work based on the Program, and copy and B distribute such modifications or work under the terms of Section 1; above, provided that you also meet all of these conditions: C a) You must cause the modified files to carry prominent notices B stating that you changed the files and the date of any change. F b) You must cause any work that you distribute or publish, that inC whole or in part contains or is derived from the Program or any E part thereof, to be licensed as a whole at no charge to all third , parties under the terms of this License. D c) If the modified program normally reads commands interactively> when run, you must cause it, when started running for suchD interactive use in the most ordinary way, to print or display an@ announcement including an appropriate copyright notice and aF notice that there is no warranty (or else, saying that you provideA a warranty) and that users may redistribute the program under E these conditions, and telling the user how to view a copy of this B License. (Exception: if the Program itself is interactive butD does not normally print such an announcement, your work based on: the Program is not required to print an announcement.) = These requirements apply to the modified work as a whole. If D identifiable sections of that work are not derived from the Program,B and can be reasonably considered independent and separate works inC themselves, then this License, and its terms, do not apply to those B sections when you distribute them as separate works. But when youE distribute the same sections as part of a whole which is a work based E on the Program, the distribution of the whole must be on the terms of A this License, whose permissions for other licensees extend to the I entire whole, and thus to each and every part regardless of who wrote it. E Thus, it is not the intent of this section to claim rights or contest E your rights to work written entirely by you; rather, the intent is to ? exercise the right to control the distribution of derivative or & collective works based on the Program. F In addition, mere aggregation of another work not based on the ProgramE with the Program (or with a work based on the Program) on a volume of D a storage or distribution medium does not bring the other work under the scope of this License. D 3. You may copy and distribute the Program (or a work based on it,E under Section 2) in object code or executable form under the terms of F Sections 1 and 2 above provided that you also do one of the following: D a) Accompany it with the complete corresponding machine-readableF source code, which must be distributed under the terms of SectionsL 1 and 2 above on a medium customarily used for software interchange; or, B b) Accompany it with a written offer, valid for at least threeB years, to give any third party, for a charge no more than yourA cost of physically performing source distribution, a complete A machine-readable copy of the corresponding source code, to be E distributed under the terms of Sections 1 and 2 above on a medium 2 customarily used for software interchange; or, E c) Accompany it with the information you received as to the offer B to distribute corresponding source code. (This alternative is? allowed only for noncommercial distribution and only if youCD received the program in object code or executable form with such1 an offer, in accord with Subsection b above.) C The source code for a work means the preferred form of the work forsD making modifications to it. For an executable work, complete sourceD code means all the source code for all modules it contains, plus any? associated interface definition files, plus the scripts used tokF control compilation and installation of the executable. However, as a? special exception, the source code distributed need not includeeA anything that is normally distributed (in either source or binarylD form) with the major components (compiler, kernel, and so on) of theD operating system on which the executable runs, unless that component" itself accompanies the executable. @ If distribution of executable or object code is made by offering@ access to copy from a designated place, then offering equivalent< access to copy the source code from the same place counts asB distribution of the source code, even though third parties are not8 compelled to copy the source along with the object code. D 4. You may not copy, modify, sublicense, or distribute the Program= except as expressly provided under this License. Any attemptnB otherwise to copy, modify, sublicense or distribute the Program isF void, and will automatically terminate your rights under this License.D However, parties who have received copies, or rights, from you underD this License will not have their licenses terminated so long as such" parties remain in full compliance. D 5. You are not required to accept this License, since you have notD signed it. However, nothing else grants you permission to modify orB distribute the Program or its derivative works. These actions areC prohibited by law if you do not accept this License. Therefore, byo? modifying or distributing the Program (or any work based on the D Program), you indicate your acceptance of this License to do so, andC all its terms and conditions for copying, distributing or modifyingr! the Program or works based on it. E 6. Each time you redistribute the Program (or any work based on the A Program), the recipient automatically receives a license from therF original licensor to copy, distribute or modify the Program subject to; these terms and conditions. You may not impose any further F restrictions on the recipients' exercise of the rights granted herein.D You are not responsible for enforcing compliance by third parties to
this License.r E 7. If, as a consequence of a court judgment or allegation of patenteD infringement or for any other reason (not limited to patent issues),C conditions are imposed on you (whether by court order, agreement oreF otherwise) that contradict the conditions of this License, they do not> excuse you from the conditions of this License. If you cannotF distribute so as to satisfy simultaneously your obligations under thisF License and any other pertinent obligations, then as a consequence you@ may not distribute the Program at all. For example, if a patentF license would not permit royalty-free redistribution of the Program byE all those who receive copies directly or indirectly through you, thentC the only way you could satisfy both it and this License would be toh2 refrain entirely from distribution of the Program. E If any portion of this section is held invalid or unenforceable underhF any particular circumstance, the balance of the section is intended to> apply and the section as a whole is intended to apply in other circumstances. C It is not the purpose of this section to induce you to infringe anyiD patents or other property right claims or to contest validity of any@ such claims; this section has the sole purpose of protecting the< integrity of the free software distribution system, which is? implemented by public license practices. Many people have madec@ generous contributions to the wide range of software distributedA through that system in reliance on consistent application of thateF system; it is up to the author/donor to decide if he or she is willingE to distribute software through any other system and a licensee cannoti impose that choice. E This section is intended to make thoroughly clear what is believed toa- be a consequence of the rest of this License. C 8. If the distribution and/or use of the Program is restricted indE certain countries either by patents or by copyrighted interfaces, thePC original copyright holder who places the Program under this LicensehB may add an explicit geographical distribution limitation excludingC those countries, so that distribution is permitted only in or among E countries not thus excluded. In such case, this License incorporates 9 the limitation as if written in the body of this License.n I 9. The Free Software Foundation may publish revised and/or new versions,H of the General Public License from time to time. Such new versions willH be similar in spirit to the present version, but may differ in detail to! address new problems or concerns.a F Each version is given a distinguishing version number. If the ProgramG specifies a version number of this License which applies to it and "anyoI later version", you have the option of following the terms and conditionsrD either of that version or of any later version published by the FreeI Software Foundation. If the Program does not specify a version number ofcL this License, you may choose any version ever published by the Free Software Foundation.i E 10. If you wish to incorporate parts of the Program into other freeiI programs whose distribution conditions are different, write to the authoroE to ask for permission. For software which is copyrighted by the Free H Software Foundation, write to the Free Software Foundation; we sometimesG make exceptions for this. Our decision will be guided by the two goalsoI of preserving the free status of all derivatives of our free software andg9 of promoting the sharing and reuse of software generally.u ' NO WARRANTYo J 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTYH FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHENF OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIESJ PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSEDD OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OFI MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AShF TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THEH PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.i K 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITINGtC WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/ORnJ REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,K INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISINGrI OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITEDoH TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BYJ YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHERE PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THEt POSSIBILITY OF SUCH DAMAGES. 0 END OF TERMS AND CONDITIONS ? Appendix: How to Apply These Terms to Your New Programse E If you develop a new program, and you want it to be of the greatest F possible use to the public, the best way to achieve this is to make itK free software which everyone can redistribute and change under these terms. F To do so, attach the following notices to the program. It is safestC to attach them to the start of each source file to most effectivelycD convey the exclusion of warranty; and each file should have at leastE the "copyright" line and a pointer to where the full notice is found.r K <one line to give the program's name and a brief idea of what it does.>i( Copyright (C) 19yy <name of author> H This program is free software; you can redistribute it and/or modifyH it under the terms of the GNU General Public License as published byE the Free Software Foundation; either version 2 of the License, oro' (at your option) any later version.k C This program is distributed in the hope that it will be useful, B but WITHOUT ANY WARRANTY; without even the implied warranty ofA MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See thef0 GNU General Public License for more details. E You should have received a copy of the GNU General Public Licensex? along with this program; if not, write to the Free Softwaret= Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. H Also add information on how to contact you by electronic and paper mail. F If the program is interactive, make it output a short notice like this& when it starts in an interactive mode: = Gnomovision version 69, Copyright (C) 19yy name of authoroM Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.fA This is free software, and you are welcome to redistribute it 8 under certain conditions; type `show c' for details. K The hypothetical commands `show w' and `show c' should show the appropriateiI parts of the General Public License. Of course, the commands you use may H be called something other than `show w' and `show c'; they could even be8 mouse-clicks or menu items--whatever suits your program. G You should also get your employer (if you work as a programmer) or yourmD school, if any, to sign a "copyright disclaimer" for the program, if. necessary. Here is a sample; alter the names: H Yoyodyne, Inc., hereby disclaims all copyright interest in the programJ `Gnomovision' (which makes passes at compilers) written by James Hacker. & <signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice K This General Public License does not permit incorporating your program intonG proprietary programs. If your program is a subroutine library, you mayeK consider it more useful to permit linking proprietary applications with thegE library. If this is what you want to do, use the GNU Library General.' Public License instead of this License.o5 ================== RFC 822 Headers ==================a% Date: Wed, 19 Oct 1994 15:07:13 -0400r/ Message-Id: <94101915071311@lucky7.zko.dec.com> - From: gillum@lucky7.zko.dec.com (Kirt Gillum) To: ZALEWSKI@star.zko.dec.com 7 Subject: GPL part 1 (instructions for non-library code)g# X-VMS-To: ZALEWSKI@STAR.ZKO.DEC.COMl
