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===== OSI: GNU Lesser General Public License version 2.1 (LGPL-2.1) =====
[[dido:public:ra:xapend:xapend.b_stds:tech:osi:start| return to the Open Source Initiative area ]]

Comparison of free and open source licenses((
[[https://en.wikipedia.org/wiki/Comparison_of_free_and_open-source_software_licenses#cite_note-apachev2s4-12 
| Wikipedia - Comparison of free and open-source software licenses ]] ))

<table><caption>Data Sheet for GNU Lesser General Public License version 2.1 (LGPL-2.1) </caption>
^  License Attribute   ^  Value  ^
^ Full Name            | GNU Lesser General Public License version 2.1  |
^ SPDX Short Name      | LGPL-2.1 |
^ Author               | [[https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html]] |
^ Latest Version       | 2.1 |
^ Publication Date     | February 1999 |
^ Author URI           | [[https://www.gnu.org/]] |
^ OSI URI              | [[https://opensource.org/licenses/LGPL-2.1 ]] |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_linking| Linking]]  | [[dido:public:ra:xapend:xapend.a_glossary:p:permissive_oss| Permissive]] |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_distribution| Distribution]] | [[dido:public:ra:xapend:xapend.a_glossary:p:permissive_oss| Permissive]] |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_modification| Modification]] | [[dido:public:ra:xapend:xapend.a_glossary:p:permissive_oss| Permissive]] |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_patent_grant| Patent Grant]] | Yes |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_private_use| Private Use]]   | Yes |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_sublicensing| Sub-licensing]] | [[dido:public:ra:xapend:xapend.a_glossary:p:permissive_oss| Permissive]] |
^ [[dido:public:ra:xapend:xapend.a_glossary:l:lic_trademark_grant| Trademark Grant]]     | No |
</table>
==== About ====
  : **Note**: The following is an excerpt from the official License web site. It is provided here as a convenience and is not authoritative. Refer to the original document as the authoritative reference. 
  : [[https://opensource.org/licenses/LGPL-2.1]]

  : **//__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.//

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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.

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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.

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END OF TERMS AND CONDITIONS
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 an 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 2.1 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.

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

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!//


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