| | |
| | | (see the file COPYING.GPL). |
| | | |
| | | ========================================================================= |
| | | GNU GENERAL PUBLIC LICENSE |
| | | Version 2, June 1991 |
| | | |
| | | 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 |
| | | 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. |
| | | |
| | | <one line to give the program's name and a brief idea of what it does.> |
| | | Copyright (C) 19yy <name of author> |
| | | |
| | | 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., 675 Mass Ave, Cambridge, MA 02139, 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. |
| | | |
| | | <signature of Ty Coon>, 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. |
| | | =============================================================================== |
| | | |
| | | GNU LIBRARY GENERAL PUBLIC LICENSE |
| | | Version 2, June 1991 |
| | | |
| | | Copyright (C) 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. |
| | | |
| | | [This is the first released version of the library GPL. It is |
| | | numbered 2 because it goes with version 2 of the ordinary GPL.] |
| | | |
| | | Preamble |
| | | |
| | | The licenses for most software are designed to take away your |
| | | freedom to share and change it. By contrast, the GNU General Public |
| | | Licenses are intended to guarantee your freedom to share and change |
| | | free software--to make sure the software is free for all its users. |
| | | |
| | | This license, the Library General Public License, applies to some |
| | | specially designated Free Software Foundation software, and to any |
| | | other libraries whose authors decide to use it. You can use it for |
| | | your libraries, 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 library, or if you modify it. |
| | | |
| | | For example, if you distribute copies of the library, whether gratis |
| | | or for a fee, you must give the recipients all the rights that we gave |
| | | you. You must make sure that they, too, receive or can get the source |
| | | code. If you link a program with the library, you must provide |
| | | complete object files to the recipients so that they can relink them |
| | | with the library, after making changes to the library and recompiling |
| | | it. And you must show them these terms so they know their rights. |
| | | |
| | | Our method of protecting your rights has two steps: (1) copyright |
| | | the library, and (2) offer you this license which gives you legal |
| | | permission to copy, distribute and/or modify the library. |
| | | |
| | | Also, for each distributor's protection, we want to make certain |
| | | that everyone understands that there is no warranty for this free |
| | | library. If the library is modified by someone else and passed on, we |
| | | want its recipients to know that what they have is not the original |
| | | version, 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 companies distributing free |
| | | software will individually obtain patent licenses, thus in effect |
| | | transforming the program into proprietary software. To prevent this, |
| | | we have made it clear that any patent must be licensed for everyone's |
| | | free use or not licensed at all. |
| | | |
| | | Most GNU software, including some libraries, is covered by the ordinary |
| | | GNU General Public License, which was designed for utility programs. This |
| | | license, the GNU Library General Public License, applies to certain |
| | | designated libraries. This license is quite different from the ordinary |
| | | one; be sure to read it in full, and don't assume that anything in it is |
| | | the same as in the ordinary license. |
| | | |
| | | The reason we have a separate public license for some libraries is that |
| | | they blur the distinction we usually make between modifying or adding to a |
| | | program and simply using it. Linking a program with a library, without |
| | | changing the library, is in some sense simply using the library, and is |
| | | analogous to running a utility program or application program. However, in |
| | | a textual and legal sense, the linked executable is a combined work, a |
| | | derivative of the original library, and the ordinary General Public License |
| | | treats it as such. |
| | | |
| | | Because of this blurred distinction, using the ordinary General |
| | | Public License for libraries did not effectively promote software |
| | | sharing, because most developers did not use the libraries. We |
| | | concluded that weaker conditions might promote sharing better. |
| | | |
| | | However, unrestricted linking of non-free programs would deprive the |
| | | users of those programs of all benefit from the free status of the |
| | | libraries themselves. This Library General Public License is intended to |
| | | permit developers of non-free programs to use free libraries, while |
| | | preserving your freedom as a user of such programs to change the free |
| | | libraries that are incorporated in them. (We have not seen how to achieve |
| | | this as regards changes in header files, but we have achieved it as regards |
| | | changes in the actual functions of the Library.) The hope is that this |
| | | will lead to faster development of free libraries. |
| | | |
| | | The precise terms and conditions for copying, distribution and |
| | | modification follow. Pay close attention to the difference between a |
| | | "work based on the library" and a "work that uses the library". The |
| | | former contains code derived from the library, while the latter only |
| | | works together with the library. |
| | | |
| | | Note that it is possible for a library to be covered by the ordinary |
| | | General Public License rather than by this special one. |
| | | |
| | | GNU LIBRARY GENERAL PUBLIC LICENSE |
| | | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION |
| | | |
| | | 0. This License Agreement applies to any software library which |
| | | contains a notice placed by the copyright holder or other authorized |
| | | party saying it may be distributed under the terms of this Library |
| | | General Public License (also called "this License"). Each licensee is |
| | | addressed as "you". |
| | | |
| | | A "library" means a collection of software functions and/or data |
| | | prepared so as to be conveniently linked with application programs |
| | | (which use some of those functions and data) to form executables. |
| | | |
| | | The "Library", below, refers to any such software library or work |
| | | which has been distributed under these terms. A "work based on the |
| | | Library" means either the Library or any derivative work under |
| | | copyright law: that is to say, a work containing the Library or a |
| | | portion of it, either verbatim or with modifications and/or translated |
| | | straightforwardly into another language. (Hereinafter, translation is |
| | | included without limitation in the term "modification".) |
| | | |
| | | "Source code" for a work means the preferred form of the work for |
| | | making modifications to it. For a library, 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 library. |
| | | |
| | | Activities other than copying, distribution and modification are not |
| | | covered by this License; they are outside its scope. The act of |
| | | running a program using the Library is not restricted, and output from |
| | | such a program is covered only if its contents constitute a work based |
| | | on the Library (independent of the use of the Library in a tool for |
| | | writing it). Whether that is true depends on what the Library does |
| | | and what the program that uses the Library does. |
| | | |
| | | 1. You may copy and distribute verbatim copies of the Library's |
| | | complete 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 distribute a copy of this License along with the |
| | | Library. |
| | | |
| | | 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 Library or any portion |
| | | of it, thus forming a work based on the Library, 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) The modified work must itself be a software library. |
| | | |
| | | b) You must cause the files modified to carry prominent notices |
| | | stating that you changed the files and the date of any change. |
| | | |
| | | c) You must cause the whole of the work to be licensed at no |
| | | charge to all third parties under the terms of this License. |
| | | |
| | | d) If a facility in the modified Library refers to a function or a |
| | | table of data to be supplied by an application program that uses |
| | | the facility, other than as an argument passed when the facility |
| | | is invoked, then you must make a good faith effort to ensure that, |
| | | in the event an application does not supply such function or |
| | | table, the facility still operates, and performs whatever part of |
| | | its purpose remains meaningful. |
| | | |
| | | (For example, a function in a library to compute square roots has |
| | | a purpose that is entirely well-defined independent of the |
| | | application. Therefore, Subsection 2d requires that any |
| | | application-supplied function or table used by this function must |
| | | be optional: if the application does not supply it, the square |
| | | root function must still compute square roots.) |
| | | |
| | | These requirements apply to the modified work as a whole. If |
| | | identifiable sections of that work are not derived from the Library, |
| | | 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 Library, 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 Library. |
| | | |
| | | In addition, mere aggregation of another work not based on the Library |
| | | with the Library (or with a work based on the Library) on a volume of |
| | | a storage or distribution medium does not bring the other work under |
| | | the scope of this License. |
| | | |
| | | 3. You may opt to apply the terms of the ordinary GNU General Public |
| | | License instead of this License to a given copy of the Library. To do |
| | | this, you must alter all the notices that refer to this License, so |
| | | that they refer to the ordinary GNU General Public License, version 2, |
| | | instead of to this License. (If a newer version than version 2 of the |
| | | ordinary GNU General Public License has appeared, then you can specify |
| | | that version instead if you wish.) Do not make any other change in |
| | | these notices. |
| | | |
| | | Once this change is made in a given copy, it is irreversible for |
| | | that copy, so the ordinary GNU General Public License applies to all |
| | | subsequent copies and derivative works made from that copy. |
| | | |
| | | This option is useful when you wish to copy part of the code of |
| | | the Library into a program that is not a library. |
| | | |
| | | 4. You may copy and distribute the Library (or a portion or |
| | | derivative of it, under Section 2) in object code or executable form |
| | | under the terms of Sections 1 and 2 above provided that you 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. |
| | | |
| | | If distribution of 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 satisfies the requirement to |
| | | distribute the source code, even though third parties are not |
| | | compelled to copy the source along with the object code. |
| | | |
| | | 5. A program that contains no derivative of any portion of the |
| | | Library, but is designed to work with the Library by being compiled or |
| | | linked with it, is called a "work that uses the Library". Such a |
| | | work, in isolation, is not a derivative work of the Library, and |
| | | therefore falls outside the scope of this License. |
| | | |
| | | However, linking a "work that uses the Library" with the Library |
| | | creates an executable that is a derivative of the Library (because it |
| | | contains portions of the Library), rather than a "work that uses the |
| | | library". The executable is therefore covered by this License. |
| | | Section 6 states terms for distribution of such executables. |
| | | |
| | | When a "work that uses the Library" uses material from a header file |
| | | that is part of the Library, the object code for the work may be a |
| | | derivative work of the Library even though the source code is not. |
| | | Whether this is true is especially significant if the work can be |
| | | linked without the Library, or if the work is itself a library. The |
| | | threshold for this to be true is not precisely defined by law. |
| | | |
| | | If such an object file uses only numerical parameters, data |
| | | structure layouts and accessors, and small macros and small inline |
| | | functions (ten lines or less in length), then the use of the object |
| | | file is unrestricted, regardless of whether it is legally a derivative |
| | | work. (Executables containing this object code plus portions of the |
| | | Library will still fall under Section 6.) |
| | | |
| | | Otherwise, if the work is a derivative of the Library, you may |
| | | distribute the object code for the work under the terms of Section 6. |
| | | Any executables containing that work also fall under Section 6, |
| | | whether or not they are linked directly with the Library itself. |
| | | |
| | | 6. As an exception to the Sections above, you may also compile or |
| | | link a "work that uses the Library" with the Library to produce a |
| | | work containing portions of the Library, and distribute that work |
| | | under terms of your choice, provided that the terms permit |
| | | modification of the work for the customer's own use and reverse |
| | | engineering for debugging such modifications. |
| | | |
| | | You must give prominent notice with each copy of the work that the |
| | | Library is used in it and that the Library and its use are covered by |
| | | this License. You must supply a copy of this License. If the work |
| | | during execution displays copyright notices, you must include the |
| | | copyright notice for the Library among them, as well as a reference |
| | | directing the user to the copy of this License. Also, you must do one |
| | | of these things: |
| | | |
| | | a) Accompany the work with the complete corresponding |
| | | machine-readable source code for the Library including whatever |
| | | changes were used in the work (which must be distributed under |
| | | Sections 1 and 2 above); and, if the work is an executable linked |
| | | with the Library, with the complete machine-readable "work that |
| | | uses the Library", as object code and/or source code, so that the |
| | | user can modify the Library and then relink to produce a modified |
| | | executable containing the modified Library. (It is understood |
| | | that the user who changes the contents of definitions files in the |
| | | Library will not necessarily be able to recompile the application |
| | | to use the modified definitions.) |
| | | |
| | | b) Accompany the work with a written offer, valid for at |
| | | least three years, to give the same user the materials |
| | | specified in Subsection 6a, above, for a charge no more |
| | | than the cost of performing this distribution. |
| | | |
| | | c) If distribution of the work is made by offering access to copy |
| | | from a designated place, offer equivalent access to copy the above |
| | | specified materials from the same place. |
| | | |
| | | d) Verify that the user has already received a copy of these |
| | | materials or that you have already sent this user a copy. |
| | | |
| | | For an executable, the required form of the "work that uses the |
| | | Library" must include any data and utility programs needed for |
| | | reproducing the executable from it. 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. |
| | | |
| | | It may happen that this requirement contradicts the license |
| | | restrictions of other proprietary libraries that do not normally |
| | | accompany the operating system. Such a contradiction means you cannot |
| | | use both them and the Library together in an executable that you |
| | | distribute. |
| | | |
| | | 7. You may place library facilities that are a work based on the |
| | | Library side-by-side in a single library together with other library |
| | | facilities not covered by this License, and distribute such a combined |
| | | library, provided that the separate distribution of the work based on |
| | | the Library and of the other library facilities is otherwise |
| | | permitted, and provided that you do these two things: |
| | | |
| | | a) Accompany the combined library with a copy of the same work |
| | | based on the Library, uncombined with any other library |
| | | facilities. This must be distributed under the terms of the |
| | | Sections above. |
| | | |
| | | b) Give prominent notice with the combined library of the fact |
| | | that part of it is a work based on the Library, and explaining |
| | | where to find the accompanying uncombined form of the same work. |
| | | |
| | | 8. You may not copy, modify, sublicense, link with, or distribute |
| | | the Library except as expressly provided under this License. Any |
| | | attempt otherwise to copy, modify, sublicense, link with, or |
| | | distribute the Library 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. |
| | | |
| | | 9. 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 Library or its derivative works. These actions are |
| | | prohibited by law if you do not accept this License. Therefore, by |
| | | modifying or distributing the Library (or any work based on the |
| | | Library), you indicate your acceptance of this License to do so, and |
| | | all its terms and conditions for copying, distributing or modifying |
| | | the Library or works based on it. |
| | | |
| | | 10. Each time you redistribute the Library (or any work based on the |
| | | Library), the recipient automatically receives a license from the |
| | | original licensor to copy, distribute, link with or modify the Library |
| | | 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. |
| | | |
| | | 11. 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 Library at all. For example, if a patent |
| | | license would not permit royalty-free redistribution of the Library 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 Library. |
| | | |
| | | 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. |
| | | |
| | | 12. If the distribution and/or use of the Library is restricted in |
| | | certain countries either by patents or by copyrighted interfaces, the |
| | | original copyright holder who places the Library 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. |
| | | |
| | | 13. The Free Software Foundation may publish revised and/or new |
| | | versions of the Library 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 Library |
| | | 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 Library does not specify a |
| | | license version number, you may choose any version ever published by |
| | | the Free Software Foundation. |
| | | |
| | | 14. If you wish to incorporate parts of the Library into other free |
| | | programs whose distribution conditions are incompatible with these, |
| | | 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 |
| | | |
| | | 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO |
| | | WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. |
| | | EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR |
| | | OTHER PARTIES PROVIDE THE LIBRARY "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 |
| | | LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME |
| | | THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. |
| | | |
| | | 16. 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 LIBRARY 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 |
| | | LIBRARY (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 LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), 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 Libraries |
| | | |
| | | If you develop a new library, and you want it to be of the greatest |
| | | possible use to the public, we recommend making it free software that |
| | | everyone can redistribute and change. You can do so by permitting |
| | | redistribution under these terms (or, alternatively, under the terms of the |
| | | ordinary General Public License). |
| | | |
| | | To apply these terms, attach the following notices to the library. 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. |
| | | |
| | | <one line to give the library's name and a brief idea of what it does.> |
| | | Copyright (C) <year> <name of author> |
| | | |
| | | This library is free software; you can redistribute it and/or |
| | | modify it under the terms of the GNU Library General Public |
| | | License as published by the Free Software Foundation; either |
| | | version 2 of the License, or (at your option) any later version. |
| | | |
| | | This library 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 |
| | | Library General Public License for more details. |
| | | |
| | | You should have received a copy of the GNU Library General Public |
| | | License along with this library; 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. |
| | | |
| | | You should also get your employer (if you work as a programmer) or your |
| | | school, if any, to sign a "copyright disclaimer" for the library, if |
| | | necessary. Here is a sample; alter the names: |
| | | |
| | | Yoyodyne, Inc., hereby disclaims all copyright interest in the |
| | | library `Frob' (a library for tweaking knobs) written by James Random Hacker. |
| | | |
| | | <signature of Ty Coon>, 1 April 1990 |
| | | Ty Coon, President of Vice |
| | | |
| | | That's all there is to it! |