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@node Library Copying
2
@appendixsec GNU LESSER GENERAL PUBLIC LICENSE
3
 
4
@cindex LGPL, Lesser General Public License
5
@center Version 2.1, February 1999
6
 
7
@display
8
Copyright @copyright{} 1991, 1999 Free Software Foundation, Inc.
9
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA
10
 
11
Everyone is permitted to copy and distribute verbatim copies
12
of this license document, but changing it is not allowed.
13
 
14
[This is the first released version of the Lesser GPL.  It also counts
15
as the successor of the GNU Library Public License, version 2, hence the
16
version number 2.1.]
17
@end display
18
 
19
@appendixsubsec Preamble
20
 
21
  The licenses for most software are designed to take away your
22
freedom to share and change it.  By contrast, the GNU General Public
23
Licenses are intended to guarantee your freedom to share and change
24
free software---to make sure the software is free for all its users.
25
 
26
  This license, the Lesser General Public License, applies to some
27
specially designated software---typically libraries---of the Free
28
Software Foundation and other authors who decide to use it.  You can use
29
it too, but we suggest you first think carefully about whether this
30
license or the ordinary General Public License is the better strategy to
31
use in any particular case, based on the explanations below.
32
 
33
  When we speak of free software, we are referring to freedom of use,
34
not price.  Our General Public Licenses are designed to make sure that
35
you have the freedom to distribute copies of free software (and charge
36
for this service if you wish); that you receive source code or can get
37
it if you want it; that you can change the software and use pieces of it
38
in new free programs; and that you are informed that you can do these
39
things.
40
 
41
  To protect your rights, we need to make restrictions that forbid
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distributors to deny you these rights or to ask you to surrender these
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rights.  These restrictions translate to certain responsibilities for
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you if you distribute copies of the library or if you modify it.
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46
  For example, if you distribute copies of the library, whether gratis
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or for a fee, you must give the recipients all the rights that we gave
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you.  You must make sure that they, too, receive or can get the source
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code.  If you link other code with the library, you must provide
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with the library after making changes to the library and recompiling
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it.  And you must show them these terms so they know their rights.
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54
  We protect your rights with a two-step method: (1) we copyright the
55
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  Most GNU software, including some libraries, is covered by the
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  When a program is linked with a library, whether statically or using
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General Public License therefore permits such linking only if the
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  We call this license the @dfn{Lesser} General Public License because it
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  The precise terms and conditions for copying, distribution and
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121
@iftex
122
@appendixsubsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
123
@end iftex
124
@ifinfo
125
@center GNU LESSER GENERAL PUBLIC LICENSE
126
@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
127
@end ifinfo
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129
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131
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@heading END OF TERMS AND CONDITIONS
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@ifinfo
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@center END OF TERMS AND CONDITIONS
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@end ifinfo
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@page
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@appendixsubsec How to Apply These Terms to Your New Libraries
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USA.
549
@end smallexample
550
 
551
Also add information on how to contact you by electronic and paper mail.
552
 
553
You should also get your employer (if you work as a programmer) or your
554
school, if any, to sign a ``copyright disclaimer'' for the library, if
555
necessary.  Here is a sample; alter the names:
556
 
557
@smallexample
558
Yoyodyne, Inc., hereby disclaims all copyright interest in the library
559
`Frob' (a library for tweaking knobs) written by James Random Hacker.
560
 
561
@var{signature of Ty Coon}, 1 April 1990
562
Ty Coon, President of Vice
563
@end smallexample
564
 
565
That's all there is to it!

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