-
Notifications
You must be signed in to change notification settings - Fork 6
/
GNU Lesser General Public License v2.1 - GNU Project - Free Software Foundation.html
868 lines (787 loc) · 36.4 KB
/
GNU Lesser General Public License v2.1 - GNU Project - Free Software Foundation.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<!-- start of server/head-include-1.html -->
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:webmasters@gnu.org" />
<link rel="icon" type="image/png" href="/graphics/gnu-head-mini.png" />
<meta name="ICBM" content="42.355469,-71.058627" />
<meta name="DC.title" content="gnu.org" />
<!-- end of server/head-include-1.html -->
<!-- end of server/header.html -->
<!-- Parent-Version: 1.77 -->
<title>GNU Lesser General Public License v2.1 - GNU Project - Free Software Foundation</title>
<link rel="alternate" type="application/rdf+xml" href="lgpl-2.1.rdf" />
<!-- begin translist file -->
<!-- end translist file -->
<!-- start of server/banner.html -->
<!-- start of head-include-2.html -->
<link rel="stylesheet" href="/combo.css" media="screen" />
<link rel="stylesheet" href="/mini.css" media="handheld" />
<link rel="stylesheet" href="/layout.css" media="screen" />
<link rel="stylesheet" href="/print.css" media="print" />
<!-- end of head-include-2.html -->
</head>
<body>
<div class="inner">
<!-- start of server/body-include-1.html -->
<div id="toplinks">
<a href="#content">Skip to main text</a>
<span class="gnun-split"></span>
<a href="/server/select-language.html?callback=/licenses/lgpl-2.1.html">
Set language
<span class="gnun-split"></span>
</a>
</div> <!-- /toplinks -->
<div id="searcher">
<form method="get" action="//www.gnu.org/cgi-bin/estseek.cgi">
<div>
<input name="phrase" id="phrase" type="text" size="18" accesskey="s"
value="Why GNU/Linux?" onfocus="this.value=''" />
<input type="submit" value="Search" />
</div>
</form>
</div><!-- /searcher -->
<div id="translations">
<p>
<span dir="ltr" class="original"><a lang="en" hreflang="en" href="/licenses/old-licenses/lgpl-2.1.en.html">English</a> [en]</span>
<span dir="ltr"><a lang="de" hreflang="de" href="/licenses/old-licenses/lgpl-2.1.de.html">Deutsch</a> [de]</span>
<span dir="ltr"><a lang="fr" hreflang="fr" href="/licenses/old-licenses/lgpl-2.1.fr.html">français</a> [fr]</span>
<span dir="ltr"><a lang="ja" hreflang="ja" href="/licenses/old-licenses/lgpl-2.1.ja.html">日本語</a> [ja]</span>
<span dir="ltr"><a lang="ru" hreflang="ru" href="/licenses/old-licenses/lgpl-2.1.ru.html">русский</a> [ru]</span>
<span dir="ltr"><a lang="uk" hreflang="uk" href="/licenses/old-licenses/lgpl-2.1.uk.html">українська</a> [uk]</span>
</p>
</div>
<!-- end of server/body-include-1.html -->
<!-- start of server/body-include-2 -->
<div id="header">
<div id="fsf-frame">
<p id="join-fsf"><a href="https://www.fsf.org/associate/support_freedom?referrer=4052">JOIN THE FSF</a></p>
<div id="fssbox">
<p><a href="http://www.fsf.org/fss">Free Software Supporter</a></p>
<form action="https://my.fsf.org/civicrm/profile/create?reset=1&gid=31" method="post">
<div>
<input name="postURL" type="hidden" value="" />
<input type="hidden" name="group[25]" value="1" />
<input name="cancelURL" type="hidden" value="https://crm.fsf.org/civicrm/profile?reset=1&gid=31" />
<input name="_qf_default" type="hidden" value="Edit:cancel" />
</div>
<p>
<input type="text" id="frmEmail" name="email-Primary" size="18" maxlength="80"
value="email address" onfocus="this.value=''"/>
<input type="submit" name="_qf_Edit_next" value="Sign up" />
</p>
</form>
</div><!-- /fssbox -->
</div><!-- /fsf-frame -->
<div id="gnu-banner">
<a href="/">
<img src="/graphics/heckert_gnu.small.png" alt=" [A GNU head] " /><strong>GNU</strong> Operating System</a>
</div><!-- /gnu-banner -->
<p id="fsf-support">Sponsored by the <a href="#mission-statement">Free Software Foundation</a></p>
</div><!-- /header -->
<div id="navigation">
<ul>
<li id="tabAboutGNU"><a href="/gnu/gnu.html">About GNU</a></li>
<li id="tabPhilosophy"><a href="/philosophy/philosophy.html">Philosophy</a></li>
<li id="tabLicenses"><a href="/licenses/licenses.html">Licenses</a></li>
<li id="tabEducation"><a href="/education/education.html">Education</a></li>
<li id="tabSoftware"><a href="/software/software.html">Software</a></li>
<li id="tabDoc"><a href="/doc/doc.html">Documentation</a></li>
<li id="tabHelp"><a href="/help/help.html">Help GNU</a></li>
</ul>
</div><!-- /navigation -->
<!-- end of server/body-include-2 -->
<div id="content">
<!-- end of server/banner.html -->
<h2>GNU Lesser General Public License, version 2.1</h2>
<ul>
<li><a href="/licenses/lgpl.html">The latest version of the LGPL, version
3</a></li>
<li><a href="/licenses/why-not-lgpl.html">Why you shouldn't use the Lesser
GPL for your next library</a></li>
<li><a href="/licenses/gpl-violation.html">What to do if you see a possible
LGPL violation</a></li>
<li><a href="/licenses/old-licenses/lgpl-2.1-translations.html">Translations
of LGPLv2.1</a></li>
<li>The GNU Lesser General Public License version 2.1 (LGPLv2.1) in other
formats: <a href="lgpl-2.1.txt">plain text</a>, <a
href="lgpl-2.1.texi">Texinfo</a>, <a
href="lgpl-2.1-standalone.html">standalone HTML</a>, <a
href="lgpl-2.1.dbk">Docbook</a> </li>
<li><a href="/licenses/old-licenses/old-licenses.html#LGPL">Old versions of
the LGPL</a></li>
</ul>
<hr />
<p>This GNU Lesser General Public License counts as the successor of the GNU
Library General Public License. For an explaination of why this change was
necessary, read the <a href="/licenses/why-not-lgpl.html">Why you shouldn't use
the Lesser GPL for your next library</a> article.</p>
<h3>Table of Contents</h3>
<ul>
<li><a id="TOC1" href="#SEC1">GNU LESSER GENERAL PUBLIC LICENSE</a>
<ul>
<li><a id="TOC2" href="#SEC2">Preamble</a></li>
<li><a id="TOC3" href="#SEC3">TERMS AND CONDITIONS FOR COPYING,
DISTRIBUTION AND MODIFICATION</a></li>
<li><a id="TOC4" href="#SEC4">How to Apply These Terms to Your New
Libraries</a></li>
</ul>
</li>
</ul>
<hr style="clear: both;" />
<!-- The license text is in English and appears broken in RTL as
Arabic, Farsi, etc. Explicitly set the direction to override the
one defined in the translation. -->
<div dir="ltr">
<h3><a id="SEC1">GNU LESSER GENERAL PUBLIC LICENSE</a></h3>
<p>
Version 2.1, February 1999
</p>
<pre>
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.]
</pre>
<h3><a id="SEC2">Preamble</a></h3>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<h3><a id="SEC3">TERMS AND CONDITIONS FOR COPYING,
DISTRIBUTION AND MODIFICATION</a></h3>
<p>
<strong>0.</strong>
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".
</p>
<p>
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.
</p>
<p>
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".)
</p>
<p>
"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.
</p>
<p>
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.
</p>
<p>
<strong>1.</strong>
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.
</p>
<p>
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.
</p>
<p>
<strong>2.</strong>
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:
</p>
<ul>
<li><strong>a)</strong>
The modified work must itself be a software library.</li>
<li><strong>b)</strong>
You must cause the files modified to carry prominent notices
stating that you changed the files and the date of any change.</li>
<li><strong>c)</strong>
You must cause the whole of the work to be licensed at no
charge to all third parties under the terms of this License.</li>
<li><strong>d)</strong>
If a facility in the modified Library refers to a function or a
table of data to be supplied by an application program that uses
the facility, other than as an argument passed when the facility
is invoked, then you must make a good faith effort to ensure that,
in the event an application does not supply such function or
table, the facility still operates, and performs whatever part of
its purpose remains meaningful.
<p>
(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.)</p></li>
</ul>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
<strong>3.</strong>
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.
</p>
<p>
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.
</p>
<p>
This option is useful when you wish to copy part of the code of
the Library into a program that is not a library.
</p>
<p>
<strong>4.</strong>
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.
</p>
<p>
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.
</p>
<p>
<strong>5.</strong>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
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.)
</p>
<p>
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.
</p>
<p>
<strong>6.</strong>
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.
</p>
<p>
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:
</p>
<ul>
<li><strong>a)</strong> Accompany the work with the complete
corresponding machine-readable source code for the Library
including whatever changes were used in the work (which must be
distributed under Sections 1 and 2 above); and, if the work is an
executable linked with the Library, with the complete
machine-readable "work that uses the Library", as object code
and/or source code, so that the user can modify the Library and
then relink to produce a modified executable containing the
modified Library. (It is understood that the user who changes the
contents of definitions files in the Library will not necessarily
be able to recompile the application to use the modified
definitions.)</li>
<li><strong>b)</strong> Use a suitable shared library mechanism
for linking with the Library. A suitable mechanism is one that
(1) uses at run time a copy of the library already present on the
user's computer system, rather than copying library functions into
the executable, and (2) will operate properly with a modified
version of the library, if the user installs one, as long as the
modified version is interface-compatible with the version that the
work was made with.</li>
<li><strong>c)</strong> Accompany the work with a written offer,
valid for at least three years, to give the same user the
materials specified in Subsection 6a, above, for a charge no more
than the cost of performing this distribution.</li>
<li><strong>d)</strong> If distribution of the work is made by
offering access to copy from a designated place, offer equivalent
access to copy the above specified materials from the same
place.</li>
<li><strong>e)</strong> Verify that the user has already received
a copy of these materials or that you have already sent this user
a copy.</li>
</ul>
<p>
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.
</p>
<p>
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.
</p>
<p>
<strong>7.</strong> 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:
</p>
<ul>
<li><strong>a)</strong> Accompany the combined library with a copy
of the same work based on the Library, uncombined with any other
library facilities. This must be distributed under the terms of
the Sections above.</li>
<li><strong>b)</strong> Give prominent notice with the combined
library of the fact that part of it is a work based on the
Library, and explaining where to find the accompanying uncombined
form of the same work.</li>
</ul>
<p>
<strong>8.</strong> 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.
</p>
<p>
<strong>9.</strong>
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.
</p>
<p>
<strong>10.</strong>
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.
</p>
<p>
<strong>11.</strong>
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.
</p>
<p>
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.
</p>
<p>
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.
</p>
<p>
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
</p>
<p>
<strong>12.</strong>
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.
</p>
<p>
<strong>13.</strong>
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.
</p>
<p>
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.
</p>
<p>
<strong>14.</strong>
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.
</p>
<p>
<strong>NO WARRANTY</strong>
</p>
<p>
<strong>15.</strong>
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.
</p>
<p>
<strong>16.</strong>
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.
</p>
<h3>END OF TERMS AND CONDITIONS</h3>
<h3><a id="SEC4">How to Apply These Terms to Your New
Libraries</a></h3>
<p>
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).
</p>
<p>
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.
</p>
<pre>
<var>one line to give the library's name and an idea of what it does.</var>
Copyright (C) <var>year</var> <var>name of author</var>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
</pre>
<p>
Also add information on how to contact you by electronic and paper mail.
</p>
<p>
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:
</p>
<pre>
Yoyodyne, Inc., hereby disclaims all copyright interest in
the library `Frob' (a library for tweaking knobs) written
by James Random Hacker.
<var>signature of Ty Coon</var>, 1 April 1990
Ty Coon, President of Vice
</pre>
<p>
That's all there is to it!</p>
</div>
</div><!-- for id="content", starts in the include above -->
<!-- begin server/footer-text.html -->
<div id="fsf-links">
<ul>
<li><a href="/">GNU home page</a></li>
<li><a href="http://www.fsf.org/">FSF home page</a></li>
<li><a href="/graphics/graphics.html">GNU Art</a></li>
<li><a href="/fun/fun.html">GNU Fun</a></li>
<li><a href="/people/people.html">GNU's Who?</a></li>
<li><a href="http://directory.fsf.org">Free Software Directory</a></li>
<li><a href="/server/sitemap.html">Site map</a></li>
</ul>
</div><!-- /fsf-links -->
<div id="mission-statement">
<blockquote>
<p><a href="http://www.fsf.org"><img id="fsfbanner"
src="/graphics/fsf-logo-notext.png" alt=" [FSF logo] "/></a><strong>“Our
mission is to preserve, protect and promote the freedom to use, study,
copy, modify, and redistribute computer software, and to defend the
rights of Free Software users.”</strong></p>
</blockquote>
<p>The <a href="http://www.fsf.org">Free Software Foundation</a> is
the principal organizational sponsor of the GNU Operating System.
<strong>Support GNU and the FSF</strong> by <a
href="http://shop.fsf.org/">buying manuals and gear</a>, <a
href="https://my.fsf.org/associate/support_freedom?referrer=4052">
<strong>joining the FSF</strong></a> as an associate member, or making
a <strong>donation</strong>, either <a
href="http://donate.fsf.org/">directly to the FSF</a> or <a
href="http://flattr.com/thing/313733/gnuproject-on-Flattr">via
Flattr</a>.</p>
<p id="backtotop"><a href="#header">back to top</a></p>
</div><!-- /mission-statement -->
<!-- end server/footer-text.html -->
<div id="footer">
<div class="unprintable">
<p>Please send general FSF & GNU inquiries to
<a href="mailto:gnu@gnu.org"><gnu@gnu.org></a>.
There are also <a href="/contact/">other ways to contact</a>
the FSF. Broken links and other corrections or suggestions can be sent
to <a href="mailto:webmasters@gnu.org"><webmasters@gnu.org></a>.</p>
<p><!-- TRANSLATORS: Ignore the original text in this paragraph,
replace it with the translation of these two:
We work hard and do our best to provide accurate, good quality
translations. However, we are not exempt from imperfection.
Please send your comments and general suggestions in this regard
to <a href="mailto:web-translators@gnu.org">
<web-translators@gnu.org></a>.</p>
<p>For information on coordinating and submitting translations of
our web pages, see <a
href="/server/standards/README.translations.html">Translations
README</a>. -->
Please see the <a
href="/server/standards/README.translations.html">Translations
README</a> for information on coordinating and submitting translations
of this article.</p>
</div>
<p>Copyright notice above.</p>
<!-- start of server/bottom-notes.html -->
<div class="unprintable">
<p><a href="http://www.fsf.org/about/dmca-notice">Copyright Infringement Notification</a></p>
</div>
<!-- end of server/bottom-notes.html -->
<p class="unprintable">Updated:
<!-- timestamp start -->
$Date: 2014/04/12 12:39:53 $
<!-- timestamp end --></p>
</div>
</div>
</body>
</html>