5 kx
5 kx GNU GENERAL PUBLIC LICENSE
5 kx Version 1, February 1989
5 kx
5 kx Copyright (C) 1989 Free Software Foundation, Inc.
5 kx 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
5 kx
5 kx Everyone is permitted to copy and distribute verbatim copies
5 kx of this license document, but changing it is not allowed.
5 kx
5 kx Preamble
5 kx
5 kx The license agreements of most software companies try to keep users
5 kx at the mercy of those companies. By contrast, our General Public
5 kx License is intended to guarantee your freedom to share and change free
5 kx software--to make sure the software is free for all its users. The
5 kx General Public License applies to the Free Software Foundation's
5 kx software and to any other program whose authors commit to using it.
5 kx You can use it for your programs, too.
5 kx
5 kx When we speak of free software, we are referring to freedom, not
5 kx price. Specifically, the General Public License is designed to make
5 kx sure that you have the freedom to give away or sell copies of free
5 kx software, that you receive source code or can get it if you want it,
5 kx that you can change the software or use pieces of it in new free
5 kx programs; and that you know you can do these things.
5 kx
5 kx To protect your rights, we need to make restrictions that forbid
5 kx anyone to deny you these rights or to ask you to surrender the rights.
5 kx These restrictions translate to certain responsibilities for you if you
5 kx distribute copies of the software, or if you modify it.
5 kx
5 kx For example, if you distribute copies of a such a program, whether
5 kx gratis or for a fee, you must give the recipients all the rights that
5 kx you have. You must make sure that they, too, receive or can get the
5 kx source code. And you must tell them their rights.
5 kx
5 kx We protect your rights with two steps: (1) copyright the software, and
5 kx (2) offer you this license which gives you legal permission to copy,
5 kx distribute and/or modify the software.
5 kx
5 kx Also, for each author's protection and ours, we want to make certain
5 kx that everyone understands that there is no warranty for this free
5 kx software. If the software is modified by someone else and passed on, we
5 kx want its recipients to know that what they have is not the original, so
5 kx that any problems introduced by others will not reflect on the original
5 kx authors' reputations.
5 kx
5 kx The precise terms and conditions for copying, distribution and
5 kx modification follow.
5 kx
5 kx GNU GENERAL PUBLIC LICENSE
5 kx TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
5 kx
5 kx 0. This License Agreement applies to any program or other work which
5 kx contains a notice placed by the copyright holder saying it may be
5 kx distributed under the terms of this General Public License. The
5 kx "Program", below, refers to any such program or work, and a "work based
5 kx on the Program" means either the Program or any work containing the
5 kx Program or a portion of it, either verbatim or with modifications. Each
5 kx licensee is addressed as "you".
5 kx
5 kx 1. You may copy and distribute verbatim copies of the Program's source
5 kx code as you receive it, in any medium, provided that you conspicuously and
5 kx appropriately publish on each copy an appropriate copyright notice and
5 kx disclaimer of warranty; keep intact all the notices that refer to this
5 kx General Public License and to the absence of any warranty; and give any
5 kx other recipients of the Program a copy of this General Public License
5 kx along with the Program. You may charge a fee for the physical act of
5 kx transferring a copy.
5 kx
5 kx 2. You may modify your copy or copies of the Program or any portion of
5 kx it, and copy and distribute such modifications under the terms of Paragraph
5 kx 1 above, provided that you also do the following:
5 kx
5 kx a) cause the modified files to carry prominent notices stating that
5 kx you changed the files and the date of any change; and
5 kx
5 kx b) cause the whole of any work that you distribute or publish, that
5 kx in whole or in part contains the Program or any part thereof, either
5 kx with or without modifications, to be licensed at no charge to all
5 kx third parties under the terms of this General Public License (except
5 kx that you may choose to grant warranty protection to some or all
5 kx third parties, at your option).
5 kx
5 kx c) If the modified program normally reads commands interactively when
5 kx run, you must cause it, when started running for such interactive use
5 kx in the simplest and most usual way, to print or display an
5 kx announcement including an appropriate copyright notice and a notice
5 kx that there is no warranty (or else, saying that you provide a
5 kx warranty) and that users may redistribute the program under these
5 kx conditions, and telling the user how to view a copy of this General
5 kx Public License.
5 kx
5 kx d) You may charge a fee for the physical act of transferring a
5 kx copy, and you may at your option offer warranty protection in
5 kx exchange for a fee.
5 kx
5 kx Mere aggregation of another independent work with the Program (or its
5 kx derivative) on a volume of a storage or distribution medium does not bring
5 kx the other work under the scope of these terms.
5 kx
5 kx 3. You may copy and distribute the Program (or a portion or derivative of
5 kx it, under Paragraph 2) in object code or executable form under the terms of
5 kx Paragraphs 1 and 2 above provided that you also do one of the following:
5 kx
5 kx a) accompany it with the complete corresponding machine-readable
5 kx source code, which must be distributed under the terms of
5 kx Paragraphs 1 and 2 above; or,
5 kx
5 kx b) accompany it with a written offer, valid for at least three
5 kx years, to give any third party free (except for a nominal charge
5 kx for the cost of distribution) a complete machine-readable copy of the
5 kx corresponding source code, to be distributed under the terms of
5 kx Paragraphs 1 and 2 above; or,
5 kx
5 kx c) accompany it with the information you received as to where the
5 kx corresponding source code may be obtained. (This alternative is
5 kx allowed only for noncommercial distribution and only if you
5 kx received the program in object code or executable form alone.)
5 kx
5 kx Source code for a work means the preferred form of the work for making
5 kx modifications to it. For an executable file, complete source code means
5 kx all the source code for all modules it contains; but, as a special
5 kx exception, it need not include source code for modules which are standard
5 kx libraries that accompany the operating system on which the executable
5 kx file runs, or for standard header files or definitions files that
5 kx accompany that operating system.
5 kx
5 kx 4. You may not copy, modify, sublicense, distribute or transfer the
5 kx Program except as expressly provided under this General Public License.
5 kx Any attempt otherwise to copy, modify, sublicense, distribute or transfer
5 kx the Program is void, and will automatically terminate your rights to use
5 kx the Program under this License. However, parties who have received
5 kx copies, or rights to use copies, from you under this General Public
5 kx License will not have their licenses terminated so long as such parties
5 kx remain in full compliance.
5 kx
5 kx 5. By copying, distributing or modifying the Program (or any work based
5 kx on the Program) you indicate your acceptance of this license to do so,
5 kx and all its terms and conditions.
5 kx
5 kx 6. Each time you redistribute the Program (or any work based on the
5 kx Program), the recipient automatically receives a license from the original
5 kx licensor to copy, distribute or modify the Program subject to these
5 kx terms and conditions. You may not impose any further restrictions on the
5 kx recipients' exercise of the rights granted herein.
5 kx
5 kx 7. The Free Software Foundation may publish revised and/or new versions
5 kx of the General Public License from time to time. Such new versions will
5 kx be similar in spirit to the present version, but may differ in detail to
5 kx address new problems or concerns.
5 kx
5 kx Each version is given a distinguishing version number. If the Program
5 kx specifies a version number of the license which applies to it and "any
5 kx later version", you have the option of following the terms and conditions
5 kx either of that version or of any later version published by the Free
5 kx Software Foundation. If the Program does not specify a version number of
5 kx the license, you may choose any version ever published by the Free Software
5 kx Foundation.
5 kx
5 kx 8. If you wish to incorporate parts of the Program into other free
5 kx programs whose distribution conditions are different, write to the author
5 kx to ask for permission. For software which is copyrighted by the Free
5 kx Software Foundation, write to the Free Software Foundation; we sometimes
5 kx make exceptions for this. Our decision will be guided by the two goals
5 kx of preserving the free status of all derivatives of our free software and
5 kx of promoting the sharing and reuse of software generally.
5 kx
5 kx NO WARRANTY
5 kx
5 kx 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
5 kx FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
5 kx OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
5 kx PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
5 kx OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
5 kx MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
5 kx TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
5 kx PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
5 kx REPAIR OR CORRECTION.
5 kx
5 kx 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
5 kx WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
5 kx REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
5 kx INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
5 kx OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
5 kx TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
5 kx YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
5 kx PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
5 kx POSSIBILITY OF SUCH DAMAGES.
5 kx
5 kx END OF TERMS AND CONDITIONS
5 kx
5 kx Appendix: How to Apply These Terms to Your New Programs
5 kx
5 kx If you develop a new program, and you want it to be of the greatest
5 kx possible use to humanity, the best way to achieve this is to make it
5 kx free software which everyone can redistribute and change under these
5 kx terms.
5 kx
5 kx To do so, attach the following notices to the program. It is safest to
5 kx attach them to the start of each source file to most effectively convey
5 kx the exclusion of warranty; and each file should have at least the
5 kx "copyright" line and a pointer to where the full notice is found.
5 kx
5 kx <one line to give the program's name and a brief idea of what it does.>
5 kx Copyright (C) 19yy <name of author>
5 kx
5 kx This program is free software; you can redistribute it and/or modify
5 kx it under the terms of the GNU General Public License as published by
5 kx the Free Software Foundation; either version 1, or (at your option)
5 kx any later version.
5 kx
5 kx This program is distributed in the hope that it will be useful,
5 kx but WITHOUT ANY WARRANTY; without even the implied warranty of
5 kx MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5 kx GNU General Public License for more details.
5 kx
5 kx You should have received a copy of the GNU General Public License
5 kx along with this program; if not, write to the Free Software
5 kx Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
5 kx
5 kx
5 kx Also add information on how to contact you by electronic and paper mail.
5 kx
5 kx If the program is interactive, make it output a short notice like this
5 kx when it starts in an interactive mode:
5 kx
5 kx Gnomovision version 69, Copyright (C) 19xx name of author
5 kx Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
5 kx This is free software, and you are welcome to redistribute it
5 kx under certain conditions; type `show c' for details.
5 kx
5 kx The hypothetical commands `show w' and `show c' should show the
5 kx appropriate parts of the General Public License. Of course, the
5 kx commands you use may be called something other than `show w' and `show
5 kx c'; they could even be mouse-clicks or menu items--whatever suits your
5 kx program.
5 kx
5 kx You should also get your employer (if you work as a programmer) or your
5 kx school, if any, to sign a "copyright disclaimer" for the program, if
5 kx necessary. Here a sample; alter the names:
5 kx
5 kx Yoyodyne, Inc., hereby disclaims all copyright interest in the
5 kx program `Gnomovision' (a program to direct compilers to make passes
5 kx at assemblers) written by James Hacker.
5 kx
5 kx <signature of Ty Coon>, 1 April 1989
5 kx Ty Coon, President of Vice
5 kx
5 kx That's all there is to it!