{0} 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 2.1 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.
\\ Version 2.1, February 1999 \ \
\Copyright (C) 1991, 1999 Free Software Foundation, Inc.\ \ \
\ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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.] \
\ 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. \
\ \
\ 0.\ 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. \
\ 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: \
\\ (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 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: \
\\ 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. \
\ 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: \
\
\ 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 with \ 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 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. \
\ \ 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. \
\