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GNU LESSER GENERAL PUBLIC LICENSE
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Version 2.1, February 1999
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Copyright (C) 1991, 1999 Free Software Foundation, Inc.
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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[This is the first released version of the Lesser GPL. It also counts
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as the successor of the GNU Library Public License, version 2, hence
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the version number 2.1.]
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Preamble
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The licenses for most software are designed to take away your
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freedom to share and change it. By contrast, the GNU General Public
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Licenses are intended to guarantee your freedom to share and change
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free software--to make sure the software is free for all its users.
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This license, the Lesser General Public License, applies to some
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specially designated software packages--typically libraries--of the
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Free Software Foundation and other authors who decide to use it. You
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can use it too, but we suggest you first think carefully about whether
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this license or the ordinary General Public License is the better
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When we speak of free software, we are referring to freedom of use,
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interface-compatible with the version that the work was made with.
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c) Accompany the work with a written offer, valid for at
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least three years, to give the same user the materials
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specified in Subsection 6a, above, for a charge no more
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than the cost of performing this distribution.
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d) If distribution of the work is made by offering access to copy
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specified materials from the same place.
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e) Verify that the user has already received a copy of these
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materials or that you have already sent this user a copy.
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For an executable, the required form of the "work that uses the
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Library" must include any data and utility programs needed for
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It may happen that this requirement contradicts the license
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use both them and the Library together in an executable that you
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distribute.
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7. You may place library facilities that are a work based on the
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Library side-by-side in a single library together with other library
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facilities not covered by this License, and distribute such a combined
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library, provided that the separate distribution of the work based on
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permitted, and provided that you do these two things:
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a) Accompany the combined library with a copy of the same work
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Sections above.
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b) Give prominent notice with the combined library of the fact
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8. You may not copy, modify, sublicense, link with, or distribute
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the Library except as expressly provided under this License. Any
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attempt otherwise to copy, modify, sublicense, link with, or
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or rights, from you under this License will not have their licenses
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terminated so long as such parties remain in full compliance.
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9. You are not required to accept this License, since you have not
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the Library or works based on it.
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10. Each time you redistribute the Library (or any work based on the
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Library), the recipient automatically receives a license from the
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You are not responsible for enforcing compliance by third parties with
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11. If, as a consequence of a court judgment or allegation of patent
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excuse you from the conditions of this License. If you cannot
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distribute so as to satisfy simultaneously your obligations under this
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License and any other pertinent obligations, then as a consequence you
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may not distribute the Library at all. For example, if a patent
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license would not permit royalty-free redistribution of the Library by
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all those who receive copies directly or indirectly through you, then
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the only way you could satisfy both it and this License would be to
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refrain entirely from distribution of the Library.
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If any portion of this section is held invalid or unenforceable under any
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and the section as a whole is intended to apply in other circumstances.
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It is not the purpose of this section to induce you to infringe any
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patents or other property right claims or to contest validity of any
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This section is intended to make thoroughly clear what is believed to
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12. If the distribution and/or use of the Library is restricted in
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original copyright holder who places the Library under this License may add
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an explicit geographical distribution limitation excluding those countries,
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so that distribution is permitted only in or among countries not thus
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excluded. In such case, this License incorporates the limitation as if
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written in the body of this License.
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13. The Free Software Foundation may publish revised and/or new
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versions of the Lesser General Public License from time to time.
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Such new versions will be similar in spirit to the present version,
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but may differ in detail to address new problems or concerns.
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Each version is given a distinguishing version number. If the Library
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specifies a version number of this License which applies to it and
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conditions either of that version or of any later version published by
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the Free Software Foundation. If the Library does not specify a
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license version number, you may choose any version ever published by
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the Free Software Foundation.
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14. If you wish to incorporate parts of the Library into other free
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programs whose distribution conditions are incompatible with these,
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write to the author to ask for permission. For software which is
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copyrighted by the Free Software Foundation, write to the Free
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Software Foundation; we sometimes make exceptions for this. Our
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decision will be guided by the two goals of preserving the free status
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of all derivatives of our free software and of promoting the sharing
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and reuse of software generally.
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NO WARRANTY
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15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
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WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
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OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
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KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
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LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
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THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
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WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
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AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
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FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
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LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
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RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
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FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
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SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGES.
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END OF TERMS AND CONDITIONS
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How to Apply These Terms to Your New Libraries
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If you develop a new library, and you want it to be of the greatest
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possible use to the public, we recommend making it free software that
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everyone can redistribute and change. You can do so by permitting
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redistribution under these terms (or, alternatively, under the terms of the
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ordinary General Public License).
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To apply these terms, attach the following notices to the library. It is
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safest to attach them to the start of each source file to most effectively
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convey the exclusion of warranty; and each file should have at least the
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"copyright" line and a pointer to where the full notice is found.
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<one line to give the library's name and a brief idea of what it does.>
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Copyright (C) <year> <name of author>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Also add information on how to contact you by electronic and paper mail.
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You should also get your employer (if you work as a programmer) or your
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school, if any, to sign a "copyright disclaimer" for the library, if
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necessary. Here is a sample; alter the names:
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|
73ad23 |
|
|
|
73ad23 |
Yoyodyne, Inc., hereby disclaims all copyright interest in the
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|
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library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
|
|
73ad23 |
|
|
|
73ad23 |
<signature of Ty Coon>, 1 April 1990
|
|
|
73ad23 |
Ty Coon, President of Vice
|
|
|
73ad23 |
|
|
|
73ad23 |
That's all there is to it!
|