X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/899ecf5b7530c1c7afa5e2c18bb744dc2f59204a..f7a67166576aeda0086a243ed96f9d5fecb33772:/pod/perlgpl.pod diff --git a/pod/perlgpl.pod b/pod/perlgpl.pod index 1b76b8b..2fc1578 100644 --- a/pod/perlgpl.pod +++ b/pod/perlgpl.pod @@ -1,260 +1,384 @@ -=pod + +=head1 NAME + +perlgpl - the GNU General Public License, version 2 + +=head1 SYNOPSIS + + You can refer to this document in Pod via "L" + Or you can see this document by entering "perldoc perlgpl" + +=cut + +# Because the following document's language disallows "changing" +# it, we haven't gone thru and prettied it up with =item's or +# anything. It's good enough the way it is. + +=head1 DESCRIPTION + +This is B<"The GNU General Public License, version 2">. It's here so +that modules, programs, etc., that want to declare this as their +distribution license, can link to it. + +It is also one of the two licenses Perl allows itself to be +redistributed and/or modified; for the other one, the Perl Artistic +License, see the L. =head1 GNU GENERAL PUBLIC LICENSE -This document includes the GNU General Public License, one of the two -alternatives licenses under which Perl can be redistributed and/or -modified. See also the Perl Artistic License in L. - -=head2 The License Text - - GNU GENERAL PUBLIC LICENSE - Version 1, February 1989 - - Copyright (C) 1989 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The license agreements of most software companies try to keep users - at the mercy of those companies. By contrast, our General Public - License is intended to guarantee your freedom to share and change free - software--to make sure the software is free for all its users. The - General Public License applies to the Free Software Foundation's - software and to any other program whose authors commit to using it. - You can use it for your programs, too. - - When we speak of free software, we are referring to freedom, not - price. Specifically, the General Public License is designed to make - sure that you have the freedom to give away or sell copies of free - software, that you receive source code or can get it 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. - - To protect your rights, we need to make restrictions that forbid - anyone to deny you these rights or to ask you to surrender the rights. - These restrictions translate to certain responsibilities for you if you - distribute copies of the software, or if you modify it. - - For example, if you distribute copies of a such a program, whether - gratis or for a fee, you must give the recipients all the rights that - you have. You must make sure that they, too, receive or can get the - source code. And you must tell them their rights. - - We protect your rights with two steps: (1) copyright the software, and - (2) offer you this license which gives you legal permission to copy, - distribute and/or modify the software. - - Also, for each author's protection and ours, we want to make certain - that everyone understands that there is no warranty for this free - software. If the software is modified by someone else and passed on, we - want its recipients to know that what they have is not the original, so - that any problems introduced by others will not reflect on the original - authors' reputations. - - The precise terms and conditions for copying, distribution and - modification follow. - - GNU GENERAL PUBLIC LICENSE - TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION - - 0. This License Agreement applies to any program or other work which - contains a notice placed by the copyright holder saying it may be - distributed under the terms of this General Public License. The - "Program", below, refers to any such program or work, and a "work based - on the Program" means either the Program or any work containing the - Program or a portion of it, either verbatim or with modifications. Each - licensee is addressed as "you". - - 1. You may copy and distribute verbatim copies of the Program's source - code as you receive it, in any medium, provided that you conspicuously and - appropriately publish on each copy an appropriate copyright notice and - disclaimer of warranty; keep intact all the notices that refer to this - General Public License and to the absence of any warranty; and give any - other recipients of the Program a copy of this General Public License - along with the Program. You may charge a fee for the physical act of - transferring a copy. - - 2. You may modify your copy or copies of the Program or any portion of - it, and copy and distribute such modifications under the terms of Paragraph - 1 above, provided that you also do the following: - - a) cause the modified files to carry prominent notices stating that - you changed the files and the date of any change; and - - b) cause the whole of any work that you distribute or publish, that - in whole or in part contains the Program or any part thereof, either - with or without modifications, to be licensed at no charge to all - third parties under the terms of this General Public License (except - that you may choose to grant warranty protection to some or all - third parties, at your option). - - c) If the modified program normally reads commands interactively when - run, you must cause it, when started running for such interactive use - in the simplest and most usual way, to print or display an - announcement including an appropriate copyright notice and a notice - that there is no warranty (or else, saying that you provide a - warranty) and that users may redistribute the program under these - conditions, and telling the user how to view a copy of this General - Public License. - - d) You may charge a fee for the physical act of transferring a - copy, and you may at your option offer warranty protection in - exchange for a fee. - - Mere aggregation of another independent work with the Program (or its - derivative) on a volume of a storage or distribution medium does not bring - the other work under the scope of these terms. - - 3. You may copy and distribute the Program (or a portion or derivative of - it, under Paragraph 2) in object code or executable form under the terms of - Paragraphs 1 and 2 above provided that you also do one of the following: - - a) accompany it with the complete corresponding machine-readable - source code, which must be distributed under the terms of - Paragraphs 1 and 2 above; or, - - b) accompany it with a written offer, valid for at least three - years, to give any third party free (except for a nominal charge - for the cost of distribution) a complete machine-readable copy of the - corresponding source code, to be distributed under the terms of - Paragraphs 1 and 2 above; or, - - c) accompany it with the information you received as to where the - corresponding source code may be obtained. (This alternative is - allowed only for noncommercial distribution and only if you - received the program in object code or executable form alone.) - - Source code for a work means the preferred form of the work for making - modifications to it. For an executable file, complete source code means - all the source code for all modules it contains; but, as a special - exception, it need not include source code for modules which are standard - libraries that accompany the operating system on which the executable - file runs, or for standard header files or definitions files that - accompany that operating system. - - 4. You may not copy, modify, sublicense, distribute or transfer the - Program except as expressly provided under this General Public License. - Any attempt otherwise to copy, modify, sublicense, distribute or transfer - the Program is void, and will automatically terminate your rights to use - the Program under this License. However, parties who have received - copies, or rights to use copies, from you under this General Public - License will not have their licenses terminated so long as such parties - remain in full compliance. - - 5. By copying, distributing or modifying the Program (or any work based - on the Program) you indicate your acceptance of this license to do so, - and all its terms and conditions. - - 6. Each time you redistribute the Program (or any work based on the - Program), the recipient automatically receives a license from the original - licensor to copy, distribute or modify the Program subject to these - terms and conditions. You may not impose any further restrictions on the - recipients' exercise of the rights granted herein. - - 7. The Free Software Foundation may publish revised and/or new versions - of the General Public License from time to time. Such new versions will - be similar in spirit to the present version, but may differ in detail to - address new problems or concerns. - - Each version is given a distinguishing version number. If the Program - specifies a version number of the license which applies to it and "any - later version", you have the option of following the terms and conditions - either of that version or of any later version published by the Free - Software Foundation. If the Program does not specify a version number of - the license, you may choose any version ever published by the Free Software - Foundation. - - 8. If you wish to incorporate parts of the Program into other free - programs whose distribution conditions are different, write to the author - to ask for permission. For software which is copyrighted by the Free - Software Foundation, write to the Free Software Foundation; we sometimes - make exceptions for this. Our decision will be guided by the two goals - of preserving the free status of all derivatives of our free software and - of promoting the sharing and reuse of software generally. - - NO WARRANTY - - 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY - FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN - OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES - PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED - OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS - TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE - PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, - REPAIR OR CORRECTION. - - 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING - WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR - REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, - INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING - OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED - TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY - YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER - PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE - POSSIBILITY OF SUCH DAMAGES. - - END OF TERMS AND CONDITIONS - - Appendix: How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest - possible use to humanity, the best way to achieve this is to make it - free software which everyone can redistribute and change under these - terms. - - To do so, attach the following notices to the program. It is safest to - attach them to the start of each source file to most effectively convey - the exclusion of warranty; and each file should have at least the - "copyright" line and a pointer to where the full notice is found. - - - Copyright (C) 19yy - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 1, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. - - Also add information on how to contact you by electronic and paper mail. - - 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) 19xx name of author - Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - - The hypothetical commands `show w' and `show c' should show the - appropriate parts of the General Public License. Of course, the - commands you use may be called something other than `show w' and `show - c'; they could even be mouse-clicks or menu items--whatever suits your - program. - - You should also get your employer (if you work as a programmer) or your - school, if any, to sign a "copyright disclaimer" for the program, if - necessary. Here a sample; alter the names: - - Yoyodyne, Inc., hereby disclaims all copyright interest in the - program `Gnomovision' (a program to direct compilers to make passes - at assemblers) written by James Hacker. - - , 1 April 1989 - Ty Coon, President of Vice - - That's all there is to it! + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place - Suite 330, Boston, MA + 02111-1307, 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 +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + +When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +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. + +To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + +For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + +We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + +Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + +Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +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 LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + +0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + +1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + +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 +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + 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 +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +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. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + +3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +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 as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + +-- + +4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + +5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + +6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + +7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +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. + +It is not the purpose of this section to induce you to infringe any +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 made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + +-- + +8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + +9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + +10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + +11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + +12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + +-- + + Appendix: How to Apply These Terms to Your New Programs + +If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + +To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 19yy + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +Also add information on how to contact you by electronic and paper mail. + +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 author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type "show w". + This is free software, and you are welcome to redistribute it + under certain conditions; type "show c" for details. + +The hypothetical commands "show w" and "show c" should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than "show w" and "show c"; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + "Gnomovision" (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. + +[End.] =cut + +