diff options
Diffstat (limited to '3rdparty/libconfig/extra/doc/LGPL.texi')
-rw-r--r-- | 3rdparty/libconfig/extra/doc/LGPL.texi | 590 |
1 files changed, 590 insertions, 0 deletions
diff --git a/3rdparty/libconfig/extra/doc/LGPL.texi b/3rdparty/libconfig/extra/doc/LGPL.texi new file mode 100644 index 000000000..e371ac0d0 --- /dev/null +++ b/3rdparty/libconfig/extra/doc/LGPL.texi @@ -0,0 +1,590 @@ +@c \input texinfo.tex @c -*-texinfo-*- +@c +@c %**start of header + +@c All text is ignored before the setfilename. +@setfilename LGPL.info + +@center GNU LESSER GENERAL PUBLIC LICENSE +@center Version 2.1, February 1999 + +@sp 1 + +Copyright @copyright{} 1991, 1999 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 Lesser GPL. It also counts +as the successor of the GNU Library Public License, version 2, hence the +version number 2.1.] + +@sp 1 +@center Preamble +@sp 1 + +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 Lesser General Public License, applies to some +specially designated software packages--typically libraries--of the Free +Software Foundation and other authors who decide to use it. You can use +it too, but we suggest you first think carefully about whether this +license or the ordinary General Public License is the better strategy to +use in any particular case, based on the explanations below. + +When we speak of free software, we are referring to freedom of use, 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 and use pieces of it in +new free programs; and that you are informed that you can do these +things. + +To protect your rights, we need to make restrictions that forbid +distributors to deny you these rights or to ask you to surrender these +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 other code 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. + +We protect your rights with a two-step method: (1) we copyright the +library, and (2) we offer you this license, which gives you legal +permission to copy, distribute and/or modify the library. + +To protect each distributor, we want to make it very clear that there is +no warranty for the free library. Also, if the library is modified by +someone else and passed on, the recipients should know that what they +have is not the original version, so that the original author's +reputation will not be affected by problems that might be introduced by +others. + +Finally, software patents pose a constant threat to the existence of any +free program. We wish to make sure that a company cannot effectively +restrict the users of a free program by obtaining a restrictive license +from a patent holder. Therefore, we insist that any patent license +obtained for a version of the library must be consistent with the full +freedom of use specified in this license. + +Most GNU software, including some libraries, is covered by the ordinary +GNU General Public License. This license, the GNU Lesser General Public +License, applies to certain designated libraries, and is quite different +from the ordinary General Public License. We use this license for +certain libraries in order to permit linking those libraries into +non-free programs. + +When a program is linked with a library, whether statically or using a +shared library, the combination of the two is legally speaking a +combined work, a derivative of the original library. The ordinary +General Public License therefore permits such linking only if the entire +combination fits its criteria of freedom. The Lesser General Public +License permits more lax criteria for linking other code with the +library. + +We call this license the ``Lesser'' General Public License because it does +Less to protect the user's freedom than the ordinary General Public +License. It also provides other free software developers Less of an +advantage over competing non-free programs. These disadvantages are the +reason we use the ordinary General Public License for many libraries. +However, the Lesser license provides advantages in certain special +circumstances. + +For example, on rare occasions, there may be a special need to encourage +the widest possible use of a certain library, so that it becomes a +de-facto standard. To achieve this, non-free programs must be allowed +to use the library. A more frequent case is that a free library does +the same job as widely used non-free libraries. In this case, there is +little to gain by limiting the free library to free software only, so we +use the Lesser General Public License. + +In other cases, permission to use a particular library in non-free +programs enables a greater number of people to use a large body of free +software. For example, permission to use the GNU C Library in non-free +programs enables many more people to use the whole GNU operating system, +as well as its variant, the GNU/Linux operating system. + +Although the Lesser General Public License is Less protective of the +users' freedom, it does ensure that the user of a program that is linked +with the Library has the freedom and the wherewithal to run that program +using a modified version of the Library. + +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, whereas the latter must +be combined with the library in order to run. + +@page + +@center GNU LESSER GENERAL PUBLIC LICENSE +@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + +@enumerate 0 + +@sp 1 +@item +This License Agreement applies to any software library or other program +which contains a notice placed by the copyright holder or other +authorized party saying it may be distributed under the terms of this +Lesser 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. + +@sp 1 +@item +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. + +@sp 1 +@item +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: + +@enumerate a + +@item +The modified work must itself be a software library. + +@sp 1 +@item +You must cause the files modified to carry prominent notices stating +that you changed the files and the date of any change. + +@sp 1 +@item +You must cause the whole of the work to be licensed at no charge to all +third parties under the terms of this License. + +@sp 1 +@item +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.) + +@end enumerate + +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. + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@sp 1 +@item +As an exception to the Sections above, you may also combine 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: + +@enumerate a + +@sp 1 +@item +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.) + +@sp 1 +@item +Use a suitable shared library mechanism for linking with the Library. A +suitable mechanism is one that (1) uses at run time a copy of the +library already present on the user's computer system, rather than +copying library functions into the executable, and (2) will operate +properly with a modified version of the library, if the user installs +one, as long as the modified version is interface-compatible with the +version that the work was made with. + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@sp 1 +@item +Verify that the user has already received a copy of these materials or +that you have already sent this user a copy. + +@end enumerate + +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 materials to +be 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. + +@sp 1 +@item +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: + +@enumerate a + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@end enumerate + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@sp 1 +@item +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 with +this License. + +@sp 1 +@item +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. + +@sp 1 +@item +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. + +@sp 1 +@item +The Free Software Foundation may publish revised and/or new versions of +the Lesser 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. + +@sp 1 +@item +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. + +@sp 1 +@center NO WARRANTY +@sp 1 + +@item +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. + +@sp 1 +@item +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 enumerate + +@sp 1 +@center END OF TERMS AND CONDITIONS +@sp 1 +@page +@center 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. + +@format +@t{ +<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 Lesser 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 +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser 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 +} +@end format + +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: + +@format +@t{ +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 +} +@end format + +That's all there is to it! + +@c @bye |