1998-12-06 20:24:56 +00:00
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GNU LIBRARY GENERAL PUBLIC LICENSE
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==================================
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Version 2, June 1991
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Copyright (C) 1991 Free Software Foundation, Inc.
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675 Mass Ave, Cambridge, MA 02139, 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 library GPL. It is
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numbered 2 because it goes with version 2 of the ordinary GPL.]
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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
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Public Licenses are intended to guarantee your freedom to share
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and change free software--to make sure the software is free for
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all its users.
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This license, the Library General Public License, applies to
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some specially designated Free Software Foundation software, and
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to any other libraries whose authors decide to use it. You can
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use it for your libraries, too.
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When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure
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that you have the freedom to distribute copies of free software
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source code or can get it if you want it, that you can change
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you know you can do these things.
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Our method of protecting your rights has two steps: (1)
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2019-01-30 16:28:08 +00:00
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1998-12-06 20:24:56 +00:00
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Finally, any free program is threatened constantly by software
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patents. We wish to avoid the danger that companies
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licensed at all.
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Most GNU software, including some libraries, is covered by the
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License, applies to certain designated libraries. This license
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Note that it is possible for a library to be covered by the
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GNU LIBRARY GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License Agreement applies to any software library which
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2019-01-30 16:28:08 +00:00
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1998-12-06 20:24:56 +00:00
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1998-12-06 20:24:56 +00:00
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in the event an application does not supply such function or
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table, the facility still operates, and performs whatever part of
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its purpose remains meaningful.
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(For example, a function in a library to compute square roots has
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be optional: if the application does not supply it, the square
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if you wish.) Do not make any other change in these notices.
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1998-12-06 20:24:56 +00:00
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Once this change is made in a given copy, it is irreversible for
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License.
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covered by this License. Section 6 states terms for distribution
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When a "work that uses the Library" uses material from a header
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If such an object file uses only numerical parameters, data
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structure layouts and accessors, and small macros and small
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inline functions (ten lines or less in length), then the use of
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code plus portions of the Library will still fall under Section
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6.)
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Otherwise, if the work is a derivative of the Library, you may
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distribute the object code for the work under the terms of
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Section 6. Any executables containing that work also fall under
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Section 6, whether or not they are linked directly with the
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Library itself.
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1998-12-06 20:24:56 +00:00
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6. As an exception to the Sections above, you may also compile
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or link a "work that uses the Library" with the Library to
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produce a work containing portions of the Library, and
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the terms permit modification of the work for the customer's own
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use and reverse engineering for debugging such modifications.
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You must give prominent notice with each copy of the work that
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covered by this License. You must supply a copy of this
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License. If the work during execution displays copyright
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a) Accompany the work with the complete corresponding
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b) Accompany the work with a written offer, valid for at
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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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reproducing the executable from it. However, as a special
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exception, the source code distributed need not include anything
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that is normally distributed (in either source or binary form)
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with the major components (compiler, kernel, and so on) of the
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operating system on which the executable runs, unless that
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component itself accompanies the executable.
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It may happen that this requirement contradicts the license
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restrictions of other proprietary libraries that do not normally
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accompany the operating system. Such a contradiction means you
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cannot use both them and the Library together in an executable
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that you distribute.
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1998-12-06 20:24:56 +00:00
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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
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library facilities not covered by this License, and distribute
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of the work based on the Library and of the other library
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facilities is otherwise permitted, and provided that you do
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these two things:
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a) Accompany the combined library with a copy of the same work
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8. You may not copy, modify, sublicense, link with, or
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However, parties who have received copies, or rights, from you
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copying, distributing or modifying the Library or works based on
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10. Each time you redistribute the Library (or any work based on
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exercise of the rights granted herein. You are not responsible
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2019-01-30 16:28:08 +00:00
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1998-12-06 20:24:56 +00:00
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11. If, as a consequence of a court judgment or allegation of
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patent infringement or for any other reason (not limited to
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License. If you cannot distribute so as to satisfy
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distribute the Library at all. For example, if a patent license
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all those who receive copies directly or indirectly through you,
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then the only way you could satisfy both it and this License
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If any portion of this section is held invalid or unenforceable
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intended to apply, and the section as a whole is intended to
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apply in other circumstances.
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It is not the purpose of this section to induce you to infringe
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validity of any such claims; this section has the sole purpose
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This section is intended to make thoroughly clear what is
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limitation excluding those countries, so that distribution is
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permitted only in or among countries not thus excluded. In such
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case, this License incorporates the limitation as if written in
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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 Library General Public License from time to
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time. Such new versions will be similar in spirit to the present
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concerns.
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Each version is given a distinguishing version number. If the
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Library specifies a version number of this License which applies
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to it and "any later version", you have the option of following
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the terms and conditions either of that version or of any later
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version published by the Free Software Foundation. If the
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Library does not specify a license version number, you may
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choose any version ever published by the Free Software
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Foundation.
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14. If you wish to incorporate parts of the Library into other
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free programs whose distribution conditions are incompatible
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with these, write to the author to ask for permission. For
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software which is copyrighted by the Free Software Foundation,
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write to the Free Software Foundation; we sometimes make
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goals of preserving the free status of all derivatives of our
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free software and of promoting the sharing and reuse of software
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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 KIND,
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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 CONSEQUENTIAL
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DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
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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 DAMAGES.
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END OF TERMS AND CONDITIONS
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Appendix: 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
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greatest possible use to the public, we recommend making it free
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software that everyone can redistribute and change. You can do
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so by permitting redistribution under these terms (or,
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alternatively, under the terms of the ordinary General Public
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License).
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To apply these terms, attach the following notices to the
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library. It is safest to attach them to the start of each
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source file to most effectively convey the exclusion of
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warranty; and each file should have at least the "copyright"
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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 Library General Public
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License as published by the Free Software Foundation; either
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version 2 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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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Yoyodyne, Inc., hereby disclaims all copyright interest in the
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|
library `Frob' (a library for tweaking knobs) written by James Random Hacker.
|
|
|
|
|
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|
|
<signature of Ty Coon>, 1 April 1990
|
|
|
|
Ty Coon, President of Vice
|
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That's all there is to it!
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