Project

General

Profile

Statistics
| Branch: | Revision:

root / arduino-1.0 / libraries / Firmata / examples / StandardFirmata / LICENSE.txt @ 58d82c77

History | View | Annotate | Download (23.8 KB)

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 Street, 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
17
freedom to share and change it.  By contrast, the GNU General Public
18
Licenses are intended to guarantee your freedom to share and change
19
free software--to make sure the software is free for all its users.
20

    
21
  This license, the Lesser General Public License, applies to some
22
specially designated software packages--typically libraries--of the
23
Free Software Foundation and other authors who decide to use it.  You
24
can use it too, but we suggest you first think carefully about whether
25
this license or the ordinary General Public License is the better
26
strategy to use in any particular case, based on the explanations below.
27

    
28
  When we speak of free software, we are referring to freedom of use,
29
not price.  Our General Public Licenses are designed to make sure that
30
you have the freedom to distribute copies of free software (and charge
31
for this service if you wish); that you receive source code or can get
32
it if you want it; that you can change the software and use pieces of
33
it in new free programs; and that you are informed that you can do
34
these things.
35

    
36
  To protect your rights, we need to make restrictions that forbid
37
distributors to deny you these rights or to ask you to surrender these
38
rights.  These restrictions translate to certain responsibilities for
39
you if you distribute copies of the library or if you modify it.
40

    
41
  For example, if you distribute copies of the library, whether gratis
42
or for a fee, you must give the recipients all the rights that we gave
43
you.  You must make sure that they, too, receive or can get the source
44
code.  If you link other code with the library, you must provide
45
complete object files to the recipients, so that they can relink them
46
with the library after making changes to the library and recompiling
47
it.  And you must show them these terms so they know their rights.
48

    
49
  We protect your rights with a two-step method: (1) we copyright the
50
library, and (2) we offer you this license, which gives you legal
51
permission to copy, distribute and/or modify the library.
52

    
53
  To protect each distributor, we want to make it very clear that
54
there is no warranty for the free library.  Also, if the library is
55
modified by someone else and passed on, the recipients should know
56
that what they have is not the original version, so that the original
57
author's reputation will not be affected by problems that might be
58
introduced by others.
59

60
  Finally, software patents pose a constant threat to the existence of
61
any free program.  We wish to make sure that a company cannot
62
effectively restrict the users of a free program by obtaining a
63
restrictive license from a patent holder.  Therefore, we insist that
64
any patent license obtained for a version of the library must be
65
consistent with the full freedom of use specified in this license.
66

    
67
  Most GNU software, including some libraries, is covered by the
68
ordinary GNU General Public License.  This license, the GNU Lesser
69
General Public License, applies to certain designated libraries, and
70
is quite different from the ordinary General Public License.  We use
71
this license for certain libraries in order to permit linking those
72
libraries into non-free programs.
73

    
74
  When a program is linked with a library, whether statically or using
75
a shared library, the combination of the two is legally speaking a
76
combined work, a derivative of the original library.  The ordinary
77
General Public License therefore permits such linking only if the
78
entire combination fits its criteria of freedom.  The Lesser General
79
Public License permits more lax criteria for linking other code with
80
the library.
81

    
82
  We call this license the "Lesser" General Public License because it
83
does Less to protect the user's freedom than the ordinary General
84
Public License.  It also provides other free software developers Less
85
of an advantage over competing non-free programs.  These disadvantages
86
are the reason we use the ordinary General Public License for many
87
libraries.  However, the Lesser license provides advantages in certain
88
special circumstances.
89

    
90
  For example, on rare occasions, there may be a special need to
91
encourage the widest possible use of a certain library, so that it becomes
92
a de-facto standard.  To achieve this, non-free programs must be
93
allowed to use the library.  A more frequent case is that a free
94
library does the same job as widely used non-free libraries.  In this
95
case, there is little to gain by limiting the free library to free
96
software only, so we use the Lesser General Public License.
97

    
98
  In other cases, permission to use a particular library in non-free
99
programs enables a greater number of people to use a large body of
100
free software.  For example, permission to use the GNU C Library in
101
non-free programs enables many more people to use the whole GNU
102
operating system, as well as its variant, the GNU/Linux operating
103
system.
104

    
105
  Although the Lesser General Public License is Less protective of the
106
users' freedom, it does ensure that the user of a program that is
107
linked with the Library has the freedom and the wherewithal to run
108
that program using a modified version of the Library.
109

    
110
  The precise terms and conditions for copying, distribution and
111
modification follow.  Pay close attention to the difference between a
112
"work based on the library" and a "work that uses the library".  The
113
former contains code derived from the library, whereas the latter must
114
be combined with the library in order to run.
115

116
		  GNU LESSER GENERAL PUBLIC LICENSE
117
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
118

    
119
  0. This License Agreement applies to any software library or other
120
program which contains a notice placed by the copyright holder or
121
other authorized party saying it may be distributed under the terms of
122
this Lesser General Public License (also called "this License").
123
Each licensee is addressed as "you".
124

    
125
  A "library" means a collection of software functions and/or data
126
prepared so as to be conveniently linked with application programs
127
(which use some of those functions and data) to form executables.
128

    
129
  The "Library", below, refers to any such software library or work
130
which has been distributed under these terms.  A "work based on the
131
Library" means either the Library or any derivative work under
132
copyright law: that is to say, a work containing the Library or a
133
portion of it, either verbatim or with modifications and/or translated
134
straightforwardly into another language.  (Hereinafter, translation is
135
included without limitation in the term "modification".)
136

    
137
  "Source code" for a work means the preferred form of the work for
138
making modifications to it.  For a library, complete source code means
139
all the source code for all modules it contains, plus any associated
140
interface definition files, plus the scripts used to control compilation
141
and installation of the library.
142

    
143
  Activities other than copying, distribution and modification are not
144
covered by this License; they are outside its scope.  The act of
145
running a program using the Library is not restricted, and output from
146
such a program is covered only if its contents constitute a work based
147
on the Library (independent of the use of the Library in a tool for
148
writing it).  Whether that is true depends on what the Library does
149
and what the program that uses the Library does.
150
  
151
  1. You may copy and distribute verbatim copies of the Library's
152
complete source code as you receive it, in any medium, provided that
153
you conspicuously and appropriately publish on each copy an
154
appropriate copyright notice and disclaimer of warranty; keep intact
155
all the notices that refer to this License and to the absence of any
156
warranty; and distribute a copy of this License along with the
157
Library.
158

    
159
  You may charge a fee for the physical act of transferring a copy,
160
and you may at your option offer warranty protection in exchange for a
161
fee.
162

163
  2. You may modify your copy or copies of the Library or any portion
164
of it, thus forming a work based on the Library, and copy and
165
distribute such modifications or work under the terms of Section 1
166
above, provided that you also meet all of these conditions:
167

    
168
    a) The modified work must itself be a software library.
169

    
170
    b) You must cause the files modified to carry prominent notices
171
    stating that you changed the files and the date of any change.
172

    
173
    c) You must cause the whole of the work to be licensed at no
174
    charge to all third parties under the terms of this License.
175

    
176
    d) If a facility in the modified Library refers to a function or a
177
    table of data to be supplied by an application program that uses
178
    the facility, other than as an argument passed when the facility
179
    is invoked, then you must make a good faith effort to ensure that,
180
    in the event an application does not supply such function or
181
    table, the facility still operates, and performs whatever part of
182
    its purpose remains meaningful.
183

    
184
    (For example, a function in a library to compute square roots has
185
    a purpose that is entirely well-defined independent of the
186
    application.  Therefore, Subsection 2d requires that any
187
    application-supplied function or table used by this function must
188
    be optional: if the application does not supply it, the square
189
    root function must still compute square roots.)
190

    
191
These requirements apply to the modified work as a whole.  If
192
identifiable sections of that work are not derived from the Library,
193
and can be reasonably considered independent and separate works in
194
themselves, then this License, and its terms, do not apply to those
195
sections when you distribute them as separate works.  But when you
196
distribute the same sections as part of a whole which is a work based
197
on the Library, the distribution of the whole must be on the terms of
198
this License, whose permissions for other licensees extend to the
199
entire whole, and thus to each and every part regardless of who wrote
200
it.
201

    
202
Thus, it is not the intent of this section to claim rights or contest
203
your rights to work written entirely by you; rather, the intent is to
204
exercise the right to control the distribution of derivative or
205
collective works based on the Library.
206

    
207
In addition, mere aggregation of another work not based on the Library
208
with the Library (or with a work based on the Library) on a volume of
209
a storage or distribution medium does not bring the other work under
210
the scope of this License.
211

    
212
  3. You may opt to apply the terms of the ordinary GNU General Public
213
License instead of this License to a given copy of the Library.  To do
214
this, you must alter all the notices that refer to this License, so
215
that they refer to the ordinary GNU General Public License, version 2,
216
instead of to this License.  (If a newer version than version 2 of the
217
ordinary GNU General Public License has appeared, then you can specify
218
that version instead if you wish.)  Do not make any other change in
219
these notices.
220

221
  Once this change is made in a given copy, it is irreversible for
222
that copy, so the ordinary GNU General Public License applies to all
223
subsequent copies and derivative works made from that copy.
224

    
225
  This option is useful when you wish to copy part of the code of
226
the Library into a program that is not a library.
227

    
228
  4. You may copy and distribute the Library (or a portion or
229
derivative of it, under Section 2) in object code or executable form
230
under the terms of Sections 1 and 2 above provided that you accompany
231
it with the complete corresponding machine-readable source code, which
232
must be distributed under the terms of Sections 1 and 2 above on a
233
medium customarily used for software interchange.
234

    
235
  If distribution of object code is made by offering access to copy
236
from a designated place, then offering equivalent access to copy the
237
source code from the same place satisfies the requirement to
238
distribute the source code, even though third parties are not
239
compelled to copy the source along with the object code.
240

    
241
  5. A program that contains no derivative of any portion of the
242
Library, but is designed to work with the Library by being compiled or
243
linked with it, is called a "work that uses the Library".  Such a
244
work, in isolation, is not a derivative work of the Library, and
245
therefore falls outside the scope of this License.
246

    
247
  However, linking a "work that uses the Library" with the Library
248
creates an executable that is a derivative of the Library (because it
249
contains portions of the Library), rather than a "work that uses the
250
library".  The executable is therefore covered by this License.
251
Section 6 states terms for distribution of such executables.
252

    
253
  When a "work that uses the Library" uses material from a header file
254
that is part of the Library, the object code for the work may be a
255
derivative work of the Library even though the source code is not.
256
Whether this is true is especially significant if the work can be
257
linked without the Library, or if the work is itself a library.  The
258
threshold for this to be true is not precisely defined by law.
259

    
260
  If such an object file uses only numerical parameters, data
261
structure layouts and accessors, and small macros and small inline
262
functions (ten lines or less in length), then the use of the object
263
file is unrestricted, regardless of whether it is legally a derivative
264
work.  (Executables containing this object code plus portions of the
265
Library will still fall under Section 6.)
266

    
267
  Otherwise, if the work is a derivative of the Library, you may
268
distribute the object code for the work under the terms of Section 6.
269
Any executables containing that work also fall under Section 6,
270
whether or not they are linked directly with the Library itself.
271

272
  6. As an exception to the Sections above, you may also combine or
273
link a "work that uses the Library" with the Library to produce a
274
work containing portions of the Library, and distribute that work
275
under terms of your choice, provided that the terms permit
276
modification of the work for the customer's own use and reverse
277
engineering for debugging such modifications.
278

    
279
  You must give prominent notice with each copy of the work that the
280
Library is used in it and that the Library and its use are covered by
281
this License.  You must supply a copy of this License.  If the work
282
during execution displays copyright notices, you must include the
283
copyright notice for the Library among them, as well as a reference
284
directing the user to the copy of this License.  Also, you must do one
285
of these things:
286

    
287
    a) Accompany the work with the complete corresponding
288
    machine-readable source code for the Library including whatever
289
    changes were used in the work (which must be distributed under
290
    Sections 1 and 2 above); and, if the work is an executable linked
291
    with the Library, with the complete machine-readable "work that
292
    uses the Library", as object code and/or source code, so that the
293
    user can modify the Library and then relink to produce a modified
294
    executable containing the modified Library.  (It is understood
295
    that the user who changes the contents of definitions files in the
296
    Library will not necessarily be able to recompile the application
297
    to use the modified definitions.)
298

    
299
    b) Use a suitable shared library mechanism for linking with the
300
    Library.  A suitable mechanism is one that (1) uses at run time a
301
    copy of the library already present on the user's computer system,
302
    rather than copying library functions into the executable, and (2)
303
    will operate properly with a modified version of the library, if
304
    the user installs one, as long as the modified version is
305
    interface-compatible with the version that the work was made with.
306

    
307
    c) Accompany the work with a written offer, valid for at
308
    least three years, to give the same user the materials
309
    specified in Subsection 6a, above, for a charge no more
310
    than the cost of performing this distribution.
311

    
312
    d) If distribution of the work is made by offering access to copy
313
    from a designated place, offer equivalent access to copy the above
314
    specified materials from the same place.
315

    
316
    e) Verify that the user has already received a copy of these
317
    materials or that you have already sent this user a copy.
318

    
319
  For an executable, the required form of the "work that uses the
320
Library" must include any data and utility programs needed for
321
reproducing the executable from it.  However, as a special exception,
322
the materials to be distributed need not include anything that is
323
normally distributed (in either source or binary form) with the major
324
components (compiler, kernel, and so on) of the operating system on
325
which the executable runs, unless that component itself accompanies
326
the executable.
327

    
328
  It may happen that this requirement contradicts the license
329
restrictions of other proprietary libraries that do not normally
330
accompany the operating system.  Such a contradiction means you cannot
331
use both them and the Library together in an executable that you
332
distribute.
333

334
  7. You may place library facilities that are a work based on the
335
Library side-by-side in a single library together with other library
336
facilities not covered by this License, and distribute such a combined
337
library, provided that the separate distribution of the work based on
338
the Library and of the other library facilities is otherwise
339
permitted, and provided that you do these two things:
340

    
341
    a) Accompany the combined library with a copy of the same work
342
    based on the Library, uncombined with any other library
343
    facilities.  This must be distributed under the terms of the
344
    Sections above.
345

    
346
    b) Give prominent notice with the combined library of the fact
347
    that part of it is a work based on the Library, and explaining
348
    where to find the accompanying uncombined form of the same work.
349

    
350
  8. You may not copy, modify, sublicense, link with, or distribute
351
the Library except as expressly provided under this License.  Any
352
attempt otherwise to copy, modify, sublicense, link with, or
353
distribute the Library is void, and will automatically terminate your
354
rights under this License.  However, parties who have received copies,
355
or rights, from you under this License will not have their licenses
356
terminated so long as such parties remain in full compliance.
357

    
358
  9. You are not required to accept this License, since you have not
359
signed it.  However, nothing else grants you permission to modify or
360
distribute the Library or its derivative works.  These actions are
361
prohibited by law if you do not accept this License.  Therefore, by
362
modifying or distributing the Library (or any work based on the
363
Library), you indicate your acceptance of this License to do so, and
364
all its terms and conditions for copying, distributing or modifying
365
the Library or works based on it.
366

    
367
  10. Each time you redistribute the Library (or any work based on the
368
Library), the recipient automatically receives a license from the
369
original licensor to copy, distribute, link with or modify the Library
370
subject to these terms and conditions.  You may not impose any further
371
restrictions on the recipients' exercise of the rights granted herein.
372
You are not responsible for enforcing compliance by third parties with
373
this License.
374

375
  11. If, as a consequence of a court judgment or allegation of patent
376
infringement or for any other reason (not limited to patent issues),
377
conditions are imposed on you (whether by court order, agreement or
378
otherwise) that contradict the conditions of this License, they do not
379
excuse you from the conditions of this License.  If you cannot
380
distribute so as to satisfy simultaneously your obligations under this
381
License and any other pertinent obligations, then as a consequence you
382
may not distribute the Library at all.  For example, if a patent
383
license would not permit royalty-free redistribution of the Library by
384
all those who receive copies directly or indirectly through you, then
385
the only way you could satisfy both it and this License would be to
386
refrain entirely from distribution of the Library.
387

    
388
If any portion of this section is held invalid or unenforceable under any
389
particular circumstance, the balance of the section is intended to apply,
390
and the section as a whole is intended to apply in other circumstances.
391

    
392
It is not the purpose of this section to induce you to infringe any
393
patents or other property right claims or to contest validity of any
394
such claims; this section has the sole purpose of protecting the
395
integrity of the free software distribution system which is
396
implemented by public license practices.  Many people have made
397
generous contributions to the wide range of software distributed
398
through that system in reliance on consistent application of that
399
system; it is up to the author/donor to decide if he or she is willing
400
to distribute software through any other system and a licensee cannot
401
impose that choice.
402

    
403
This section is intended to make thoroughly clear what is believed to
404
be a consequence of the rest of this License.
405

    
406
  12. If the distribution and/or use of the Library is restricted in
407
certain countries either by patents or by copyrighted interfaces, the
408
original copyright holder who places the Library under this License may add
409
an explicit geographical distribution limitation excluding those countries,
410
so that distribution is permitted only in or among countries not thus
411
excluded.  In such case, this License incorporates the limitation as if
412
written in the body of this License.
413

    
414
  13. The Free Software Foundation may publish revised and/or new
415
versions of the Lesser General Public License from time to time.
416
Such new versions will be similar in spirit to the present version,
417
but may differ in detail to address new problems or concerns.
418

    
419
Each version is given a distinguishing version number.  If the Library
420
specifies a version number of this License which applies to it and
421
"any later version", you have the option of following the terms and
422
conditions either of that version or of any later version published by
423
the Free Software Foundation.  If the Library does not specify a
424
license version number, you may choose any version ever published by
425
the Free Software Foundation.
426

427
  14. If you wish to incorporate parts of the Library into other free
428
programs whose distribution conditions are incompatible with these,
429
write to the author to ask for permission.  For software which is
430
copyrighted by the Free Software Foundation, write to the Free
431
Software Foundation; we sometimes make exceptions for this.  Our
432
decision will be guided by the two goals of preserving the free status
433
of all derivatives of our free software and of promoting the sharing
434
and reuse of software generally.
435

    
436
			    NO WARRANTY
437

    
438
  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
439
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
440
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
441
OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
442
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
443
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
444
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
445
LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
446
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
447

    
448
  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
449
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
450
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
451
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
452
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
453
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
454
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
455
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
456
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
457
DAMAGES.
458