source: Daodan/MSYS2/mingw32/share/licenses/gcc-libs/COPYING.LIB@ 1193

Last change on this file since 1193 was 1166, checked in by rossy, 3 years ago

Daodan: Replace MinGW build env with an up-to-date MSYS2 env

File size: 25.9 KB
Line 
1
2 GNU LESSER GENERAL PUBLIC LICENSE
3 Version 2.1, February 1999
4
5 Copyright (C) 1991, 1999 Free Software Foundation, Inc.
6 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
7 Everyone is permitted to copy and distribute verbatim copies
8 of this license document, but changing it is not allowed.
9
10[This is the first released version of the Lesser GPL. It also counts
11 as the successor of the GNU Library Public License, version 2, hence
12 the version number 2.1.]
13
14 Preamble
15
16 The licenses for most software are designed to take away your
17freedom to share and change it. By contrast, the GNU General Public
18Licenses are intended to guarantee your freedom to share and change
19free software--to make sure the software is free for all its users.
20
21 This license, the Lesser General Public License, applies to some
22specially designated software packages--typically libraries--of the
23Free Software Foundation and other authors who decide to use it. You
24can use it too, but we suggest you first think carefully about whether
25this license or the ordinary General Public License is the better
26strategy to use in any particular case, based on the explanations
27below.
28
29 When we speak of free software, we are referring to freedom of use,
30not price. Our General Public Licenses are designed to make sure that
31you have the freedom to distribute copies of free software (and charge
32for this service if you wish); that you receive source code or can get
33it if you want it; that you can change the software and use pieces of
34it in new free programs; and that you are informed that you can do
35these things.
36
37 To protect your rights, we need to make restrictions that forbid
38distributors to deny you these rights or to ask you to surrender these
39rights. These restrictions translate to certain responsibilities for
40you if you distribute copies of the library or if you modify it.
41
42 For example, if you distribute copies of the library, whether gratis
43or for a fee, you must give the recipients all the rights that we gave
44you. You must make sure that they, too, receive or can get the source
45code. If you link other code with the library, you must provide
46complete object files to the recipients, so that they can relink them
47with the library after making changes to the library and recompiling
48it. And you must show them these terms so they know their rights.
49
50 We protect your rights with a two-step method: (1) we copyright the
51library, and (2) we offer you this license, which gives you legal
52permission to copy, distribute and/or modify the library.
53
54 To protect each distributor, we want to make it very clear that
55there is no warranty for the free library. Also, if the library is
56modified by someone else and passed on, the recipients should know
57that what they have is not the original version, so that the original
58author's reputation will not be affected by problems that might be
59introduced by others.
60
61
62 Finally, software patents pose a constant threat to the existence of
63any free program. We wish to make sure that a company cannot
64effectively restrict the users of a free program by obtaining a
65restrictive license from a patent holder. Therefore, we insist that
66any patent license obtained for a version of the library must be
67consistent with the full freedom of use specified in this license.
68
69 Most GNU software, including some libraries, is covered by the
70ordinary GNU General Public License. This license, the GNU Lesser
71General Public License, applies to certain designated libraries, and
72is quite different from the ordinary General Public License. We use
73this license for certain libraries in order to permit linking those
74libraries into non-free programs.
75
76 When a program is linked with a library, whether statically or using
77a shared library, the combination of the two is legally speaking a
78combined work, a derivative of the original library. The ordinary
79General Public License therefore permits such linking only if the
80entire combination fits its criteria of freedom. The Lesser General
81Public License permits more lax criteria for linking other code with
82the library.
83
84 We call this license the "Lesser" General Public License because it
85does Less to protect the user's freedom than the ordinary General
86Public License. It also provides other free software developers Less
87of an advantage over competing non-free programs. These disadvantages
88are the reason we use the ordinary General Public License for many
89libraries. However, the Lesser license provides advantages in certain
90special circumstances.
91
92 For example, on rare occasions, there may be a special need to
93encourage the widest possible use of a certain library, so that it
94becomes a de-facto standard. To achieve this, non-free programs must
95be allowed to use the library. A more frequent case is that a free
96library does the same job as widely used non-free libraries. In this
97case, there is little to gain by limiting the free library to free
98software only, so we use the Lesser General Public License.
99
100 In other cases, permission to use a particular library in non-free
101programs enables a greater number of people to use a large body of
102free software. For example, permission to use the GNU C Library in
103non-free programs enables many more people to use the whole GNU
104operating system, as well as its variant, the GNU/Linux operating
105system.
106
107 Although the Lesser General Public License is Less protective of the
108users' freedom, it does ensure that the user of a program that is
109linked with the Library has the freedom and the wherewithal to run
110that program using a modified version of the Library.
111
112 The precise terms and conditions for copying, distribution and
113modification follow. Pay close attention to the difference between a
114"work based on the library" and a "work that uses the library". The
115former contains code derived from the library, whereas the latter must
116be combined with the library in order to run.
117
118
119 GNU LESSER GENERAL PUBLIC LICENSE
120 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
121
122 0. This License Agreement applies to any software library or other
123program which contains a notice placed by the copyright holder or
124other authorized party saying it may be distributed under the terms of
125this Lesser General Public License (also called "this License").
126Each licensee is addressed as "you".
127
128 A "library" means a collection of software functions and/or data
129prepared so as to be conveniently linked with application programs
130(which use some of those functions and data) to form executables.
131
132 The "Library", below, refers to any such software library or work
133which has been distributed under these terms. A "work based on the
134Library" means either the Library or any derivative work under
135copyright law: that is to say, a work containing the Library or a
136portion of it, either verbatim or with modifications and/or translated
137straightforwardly into another language. (Hereinafter, translation is
138included without limitation in the term "modification".)
139
140 "Source code" for a work means the preferred form of the work for
141making modifications to it. For a library, complete source code means
142all the source code for all modules it contains, plus any associated
143interface definition files, plus the scripts used to control
144compilation and installation of the library.
145
146 Activities other than copying, distribution and modification are not
147covered by this License; they are outside its scope. The act of
148running a program using the Library is not restricted, and output from
149such a program is covered only if its contents constitute a work based
150on the Library (independent of the use of the Library in a tool for
151writing it). Whether that is true depends on what the Library does
152and what the program that uses the Library does.
153
154 1. You may copy and distribute verbatim copies of the Library's
155complete source code as you receive it, in any medium, provided that
156you conspicuously and appropriately publish on each copy an
157appropriate copyright notice and disclaimer of warranty; keep intact
158all the notices that refer to this License and to the absence of any
159warranty; and distribute a copy of this License along with the
160Library.
161
162 You may charge a fee for the physical act of transferring a copy,
163and you may at your option offer warranty protection in exchange for a
164fee.
165
166
167 2. You may modify your copy or copies of the Library or any portion
168of it, thus forming a work based on the Library, and copy and
169distribute such modifications or work under the terms of Section 1
170above, provided that you also meet all of these conditions:
171
172 a) The modified work must itself be a software library.
173
174 b) You must cause the files modified to carry prominent notices
175 stating that you changed the files and the date of any change.
176
177 c) You must cause the whole of the work to be licensed at no
178 charge to all third parties under the terms of this License.
179
180 d) If a facility in the modified Library refers to a function or a
181 table of data to be supplied by an application program that uses
182 the facility, other than as an argument passed when the facility
183 is invoked, then you must make a good faith effort to ensure that,
184 in the event an application does not supply such function or
185 table, the facility still operates, and performs whatever part of
186 its purpose remains meaningful.
187
188 (For example, a function in a library to compute square roots has
189 a purpose that is entirely well-defined independent of the
190 application. Therefore, Subsection 2d requires that any
191 application-supplied function or table used by this function must
192 be optional: if the application does not supply it, the square
193 root function must still compute square roots.)
194
195These requirements apply to the modified work as a whole. If
196identifiable sections of that work are not derived from the Library,
197and can be reasonably considered independent and separate works in
198themselves, then this License, and its terms, do not apply to those
199sections when you distribute them as separate works. But when you
200distribute the same sections as part of a whole which is a work based
201on the Library, the distribution of the whole must be on the terms of
202this License, whose permissions for other licensees extend to the
203entire whole, and thus to each and every part regardless of who wrote
204it.
205
206Thus, it is not the intent of this section to claim rights or contest
207your rights to work written entirely by you; rather, the intent is to
208exercise the right to control the distribution of derivative or
209collective works based on the Library.
210
211In addition, mere aggregation of another work not based on the Library
212with the Library (or with a work based on the Library) on a volume of
213a storage or distribution medium does not bring the other work under
214the scope of this License.
215
216 3. You may opt to apply the terms of the ordinary GNU General Public
217License instead of this License to a given copy of the Library. To do
218this, you must alter all the notices that refer to this License, so
219that they refer to the ordinary GNU General Public License, version 2,
220instead of to this License. (If a newer version than version 2 of the
221ordinary GNU General Public License has appeared, then you can specify
222that version instead if you wish.) Do not make any other change in
223these notices.
224
225
226 Once this change is made in a given copy, it is irreversible for
227that copy, so the ordinary GNU General Public License applies to all
228subsequent copies and derivative works made from that copy.
229
230 This option is useful when you wish to copy part of the code of
231the Library into a program that is not a library.
232
233 4. You may copy and distribute the Library (or a portion or
234derivative of it, under Section 2) in object code or executable form
235under the terms of Sections 1 and 2 above provided that you accompany
236it with the complete corresponding machine-readable source code, which
237must be distributed under the terms of Sections 1 and 2 above on a
238medium customarily used for software interchange.
239
240 If distribution of object code is made by offering access to copy
241from a designated place, then offering equivalent access to copy the
242source code from the same place satisfies the requirement to
243distribute the source code, even though third parties are not
244compelled to copy the source along with the object code.
245
246 5. A program that contains no derivative of any portion of the
247Library, but is designed to work with the Library by being compiled or
248linked with it, is called a "work that uses the Library". Such a
249work, in isolation, is not a derivative work of the Library, and
250therefore falls outside the scope of this License.
251
252 However, linking a "work that uses the Library" with the Library
253creates an executable that is a derivative of the Library (because it
254contains portions of the Library), rather than a "work that uses the
255library". The executable is therefore covered by this License.
256Section 6 states terms for distribution of such executables.
257
258 When a "work that uses the Library" uses material from a header file
259that is part of the Library, the object code for the work may be a
260derivative work of the Library even though the source code is not.
261Whether this is true is especially significant if the work can be
262linked without the Library, or if the work is itself a library. The
263threshold for this to be true is not precisely defined by law.
264
265 If such an object file uses only numerical parameters, data
266structure layouts and accessors, and small macros and small inline
267functions (ten lines or less in length), then the use of the object
268file is unrestricted, regardless of whether it is legally a derivative
269work. (Executables containing this object code plus portions of the
270Library will still fall under Section 6.)
271
272 Otherwise, if the work is a derivative of the Library, you may
273distribute the object code for the work under the terms of Section 6.
274Any executables containing that work also fall under Section 6,
275whether or not they are linked directly with the Library itself.
276
277
278 6. As an exception to the Sections above, you may also combine or
279link a "work that uses the Library" with the Library to produce a
280work containing portions of the Library, and distribute that work
281under terms of your choice, provided that the terms permit
282modification of the work for the customer's own use and reverse
283engineering for debugging such modifications.
284
285 You must give prominent notice with each copy of the work that the
286Library is used in it and that the Library and its use are covered by
287this License. You must supply a copy of this License. If the work
288during execution displays copyright notices, you must include the
289copyright notice for the Library among them, as well as a reference
290directing the user to the copy of this License. Also, you must do one
291of these things:
292
293 a) Accompany the work with the complete corresponding
294 machine-readable source code for the Library including whatever
295 changes were used in the work (which must be distributed under
296 Sections 1 and 2 above); and, if the work is an executable linked
297 with the Library, with the complete machine-readable "work that
298 uses the Library", as object code and/or source code, so that the
299 user can modify the Library and then relink to produce a modified
300 executable containing the modified Library. (It is understood
301 that the user who changes the contents of definitions files in the
302 Library will not necessarily be able to recompile the application
303 to use the modified definitions.)
304
305 b) Use a suitable shared library mechanism for linking with the
306 Library. A suitable mechanism is one that (1) uses at run time a
307 copy of the library already present on the user's computer system,
308 rather than copying library functions into the executable, and (2)
309 will operate properly with a modified version of the library, if
310 the user installs one, as long as the modified version is
311 interface-compatible with the version that the work was made with.
312
313 c) Accompany the work with a written offer, valid for at least
314 three years, to give the same user the materials specified in
315 Subsection 6a, above, for a charge no more than the cost of
316 performing this distribution.
317
318 d) If distribution of the work is made by offering access to copy
319 from a designated place, offer equivalent access to copy the above
320 specified materials from the same place.
321
322 e) Verify that the user has already received a copy of these
323 materials or that you have already sent this user a copy.
324
325 For an executable, the required form of the "work that uses the
326Library" must include any data and utility programs needed for
327reproducing the executable from it. However, as a special exception,
328the materials to be distributed need not include anything that is
329normally distributed (in either source or binary form) with the major
330components (compiler, kernel, and so on) of the operating system on
331which the executable runs, unless that component itself accompanies
332the executable.
333
334 It may happen that this requirement contradicts the license
335restrictions of other proprietary libraries that do not normally
336accompany the operating system. Such a contradiction means you cannot
337use both them and the Library together in an executable that you
338distribute.
339
340
341 7. You may place library facilities that are a work based on the
342Library side-by-side in a single library together with other library
343facilities not covered by this License, and distribute such a combined
344library, provided that the separate distribution of the work based on
345the Library and of the other library facilities is otherwise
346permitted, and provided that you do these two things:
347
348 a) Accompany the combined library with a copy of the same work
349 based on the Library, uncombined with any other library
350 facilities. This must be distributed under the terms of the
351 Sections above.
352
353 b) Give prominent notice with the combined library of the fact
354 that part of it is a work based on the Library, and explaining
355 where to find the accompanying uncombined form of the same work.
356
357 8. You may not copy, modify, sublicense, link with, or distribute
358the Library except as expressly provided under this License. Any
359attempt otherwise to copy, modify, sublicense, link with, or
360distribute the Library is void, and will automatically terminate your
361rights under this License. However, parties who have received copies,
362or rights, from you under this License will not have their licenses
363terminated so long as such parties remain in full compliance.
364
365 9. You are not required to accept this License, since you have not
366signed it. However, nothing else grants you permission to modify or
367distribute the Library or its derivative works. These actions are
368prohibited by law if you do not accept this License. Therefore, by
369modifying or distributing the Library (or any work based on the
370Library), you indicate your acceptance of this License to do so, and
371all its terms and conditions for copying, distributing or modifying
372the Library or works based on it.
373
374 10. Each time you redistribute the Library (or any work based on the
375Library), the recipient automatically receives a license from the
376original licensor to copy, distribute, link with or modify the Library
377subject to these terms and conditions. You may not impose any further
378restrictions on the recipients' exercise of the rights granted herein.
379You are not responsible for enforcing compliance by third parties with
380this License.
381
382
383 11. If, as a consequence of a court judgment or allegation of patent
384infringement or for any other reason (not limited to patent issues),
385conditions are imposed on you (whether by court order, agreement or
386otherwise) that contradict the conditions of this License, they do not
387excuse you from the conditions of this License. If you cannot
388distribute so as to satisfy simultaneously your obligations under this
389License and any other pertinent obligations, then as a consequence you
390may not distribute the Library at all. For example, if a patent
391license would not permit royalty-free redistribution of the Library by
392all those who receive copies directly or indirectly through you, then
393the only way you could satisfy both it and this License would be to
394refrain entirely from distribution of the Library.
395
396If any portion of this section is held invalid or unenforceable under
397any particular circumstance, the balance of the section is intended to
398apply, and the section as a whole is intended to apply in other
399circumstances.
400
401It is not the purpose of this section to induce you to infringe any
402patents or other property right claims or to contest validity of any
403such claims; this section has the sole purpose of protecting the
404integrity of the free software distribution system which is
405implemented by public license practices. Many people have made
406generous contributions to the wide range of software distributed
407through that system in reliance on consistent application of that
408system; it is up to the author/donor to decide if he or she is willing
409to distribute software through any other system and a licensee cannot
410impose that choice.
411
412This section is intended to make thoroughly clear what is believed to
413be a consequence of the rest of this License.
414
415 12. If the distribution and/or use of the Library is restricted in
416certain countries either by patents or by copyrighted interfaces, the
417original copyright holder who places the Library under this License
418may add an explicit geographical distribution limitation excluding those
419countries, so that distribution is permitted only in or among
420countries not thus excluded. In such case, this License incorporates
421the limitation as if written in the body of this License.
422
423 13. The Free Software Foundation may publish revised and/or new
424versions of the Lesser General Public License from time to time.
425Such new versions will be similar in spirit to the present version,
426but may differ in detail to address new problems or concerns.
427
428Each version is given a distinguishing version number. If the Library
429specifies a version number of this License which applies to it and
430"any later version", you have the option of following the terms and
431conditions either of that version or of any later version published by
432the Free Software Foundation. If the Library does not specify a
433license version number, you may choose any version ever published by
434the Free Software Foundation.
435
436
437 14. If you wish to incorporate parts of the Library into other free
438programs whose distribution conditions are incompatible with these,
439write to the author to ask for permission. For software which is
440copyrighted by the Free Software Foundation, write to the Free
441Software Foundation; we sometimes make exceptions for this. Our
442decision will be guided by the two goals of preserving the free status
443of all derivatives of our free software and of promoting the sharing
444and reuse of software generally.
445
446 NO WARRANTY
447
448 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
449WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
450EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
451OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
452KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
453IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
454PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
455LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
456THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
457
458 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
459WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
460AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
461FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
462CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
463LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
464RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
465FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
466SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
467DAMAGES.
468
469 END OF TERMS AND CONDITIONS
470
471
472 How to Apply These Terms to Your New Libraries
473
474 If you develop a new library, and you want it to be of the greatest
475possible use to the public, we recommend making it free software that
476everyone can redistribute and change. You can do so by permitting
477redistribution under these terms (or, alternatively, under the terms
478of the ordinary General Public License).
479
480 To apply these terms, attach the following notices to the library.
481It is safest to attach them to the start of each source file to most
482effectively convey the exclusion of warranty; and each file should
483have at least the "copyright" line and a pointer to where the full
484notice is found.
485
486
487 <one line to give the library's name and a brief idea of what it does.>
488 Copyright (C) <year> <name of author>
489
490 This library is free software; you can redistribute it and/or
491 modify it under the terms of the GNU Lesser General Public
492 License as published by the Free Software Foundation; either
493 version 2.1 of the License, or (at your option) any later version.
494
495 This library is distributed in the hope that it will be useful,
496 but WITHOUT ANY WARRANTY; without even the implied warranty of
497 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
498 Lesser General Public License for more details.
499
500 You should have received a copy of the GNU Lesser General Public
501 License along with this library; if not, write to the Free Software
502 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
503
504Also add information on how to contact you by electronic and paper mail.
505
506You should also get your employer (if you work as a programmer) or
507your school, if any, to sign a "copyright disclaimer" for the library,
508if necessary. Here is a sample; alter the names:
509
510 Yoyodyne, Inc., hereby disclaims all copyright interest in the
511 library `Frob' (a library for tweaking knobs) written by James
512 Random Hacker.
513
514 <signature of Ty Coon>, 1 April 1990
515 Ty Coon, President of Vice
516
517That's all there is to it!
518
519
Note: See TracBrowser for help on using the repository browser.