1
GNU GENERAL PUBLIC LICENSE
4
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
5
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
6
Everyone is permitted to copy and distribute verbatim copies
7
of this license document, but changing it is not allowed.
11
The licenses for most software are designed to take away your
12
freedom to share and change it. By contrast, the GNU General Public
13
License is intended to guarantee your freedom to share and change free
14
software--to make sure the software is free for all its users. This
15
General Public License applies to most of the Free Software
16
Foundation's software and to any other program whose authors commit to
17
using it. (Some other Free Software Foundation software is covered by
18
the GNU Library General Public License instead.) You can apply it to
21
When we speak of free software, we are referring to freedom, not
22
price. Our General Public Licenses are designed to make sure that you
23
have the freedom to distribute copies of free software (and charge for
24
this service if you wish), that you receive source code or can get it
25
if you want it, that you can change the software or use pieces of it
26
in new free programs; and that you know you can do these things.
28
To protect your rights, we need to make restrictions that forbid
29
anyone to deny you these rights or to ask you to surrender the rights.
30
These restrictions translate to certain responsibilities for you if you
31
distribute copies of the software, or if you modify it.
33
For example, if you distribute copies of such a program, whether
34
gratis or for a fee, you must give the recipients all the rights that
35
you have. You must make sure that they, too, receive or can get the
36
source code. And you must show them these terms so they know their
39
We protect your rights with two steps: (1) copyright the software, and
40
(2) offer you this license which gives you legal permission to copy,
41
distribute and/or modify the software.
43
Also, for each author's protection and ours, we want to make certain
44
that everyone understands that there is no warranty for this free
45
software. If the software is modified by someone else and passed on, we
46
want its recipients to know that what they have is not the original, so
47
that any problems introduced by others will not reflect on the original
50
Finally, any free program is threatened constantly by software
51
patents. We wish to avoid the danger that redistributors of a free
52
program will individually obtain patent licenses, in effect making the
53
program proprietary. To prevent this, we have made it clear that any
54
patent must be licensed for everyone's free use or not licensed at all.
56
The precise terms and conditions for copying, distribution and
59
GNU GENERAL PUBLIC LICENSE
60
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
62
0. This License applies to any program or other work which contains
63
a notice placed by the copyright holder saying it may be distributed
64
under the terms of this General Public License. The "Program", below,
65
refers to any such program or work, and a "work based on the Program"
66
means either the Program or any derivative work under copyright law:
67
that is to say, a work containing the Program or a portion of it,
68
either verbatim or with modifications and/or translated into another
69
language. (Hereinafter, translation is included without limitation in
70
the term "modification".) Each licensee is addressed as "you".
72
Activities other than copying, distribution and modification are not
73
covered by this License; they are outside its scope. The act of
74
running the Program is not restricted, and the output from the Program
75
is covered only if its contents constitute a work based on the
76
Program (independent of having been made by running the Program).
77
Whether that is true depends on what the Program does.
79
1. You may copy and distribute verbatim copies of the Program's
80
source code as you receive it, in any medium, provided that you
81
conspicuously and appropriately publish on each copy an appropriate
82
copyright notice and disclaimer of warranty; keep intact all the
83
notices that refer to this License and to the absence of any warranty;
84
and give any other recipients of the Program a copy of this License
85
along with the Program.
87
You may charge a fee for the physical act of transferring a copy, and
88
you may at your option offer warranty protection in exchange for a fee.
90
2. You may modify your copy or copies of the Program or any portion
91
of it, thus forming a work based on the Program, and copy and
92
distribute such modifications or work under the terms of Section 1
93
above, provided that you also meet all of these conditions:
95
a) You must cause the modified files to carry prominent notices
96
stating that you changed the files and the date of any change.
98
b) You must cause any work that you distribute or publish, that in
99
whole or in part contains or is derived from the Program or any
100
part thereof, to be licensed as a whole at no charge to all third
101
parties under the terms of this License.
103
c) If the modified program normally reads commands interactively
104
when run, you must cause it, when started running for such
105
interactive use in the most ordinary way, to print or display an
106
announcement including an appropriate copyright notice and a
107
notice that there is no warranty (or else, saying that you provide
108
a warranty) and that users may redistribute the program under
109
these conditions, and telling the user how to view a copy of this
110
License. (Exception: if the Program itself is interactive but
111
does not normally print such an announcement, your work based on
112
the Program is not required to print an announcement.)
114
These requirements apply to the modified work as a whole. If
115
identifiable sections of that work are not derived from the Program,
116
and can be reasonably considered independent and separate works in
117
themselves, then this License, and its terms, do not apply to those
118
sections when you distribute them as separate works. But when you
119
distribute the same sections as part of a whole which is a work based
120
on the Program, the distribution of the whole must be on the terms of
121
this License, whose permissions for other licensees extend to the
122
entire whole, and thus to each and every part regardless of who wrote it.
124
Thus, it is not the intent of this section to claim rights or contest
125
your rights to work written entirely by you; rather, the intent is to
126
exercise the right to control the distribution of derivative or
127
collective works based on the Program.
129
In addition, mere aggregation of another work not based on the Program
130
with the Program (or with a work based on the Program) on a volume of
131
a storage or distribution medium does not bring the other work under
132
the scope of this License.
134
3. You may copy and distribute the Program (or a work based on it,
135
under Section 2) in object code or executable form under the terms of
136
Sections 1 and 2 above provided that you also do one of the following:
138
a) Accompany it with the complete corresponding machine-readable
139
source code, which must be distributed under the terms of Sections
140
1 and 2 above on a medium customarily used for software interchange; or,
142
b) Accompany it with a written offer, valid for at least three
143
years, to give any third party, for a charge no more than your
144
cost of physically performing source distribution, a complete
145
machine-readable copy of the corresponding source code, to be
146
distributed under the terms of Sections 1 and 2 above on a medium
147
customarily used for software interchange; or,
149
c) Accompany it with the information you received as to the offer
150
to distribute corresponding source code. (This alternative is
151
allowed only for noncommercial distribution and only if you
152
received the program in object code or executable form with such
153
an offer, in accord with Subsection b above.)
155
The source code for a work means the preferred form of the work for
156
making modifications to it. For an executable work, complete source
157
code means all the source code for all modules it contains, plus any
158
associated interface definition files, plus the scripts used to
159
control compilation and installation of the executable. However, as a
160
special exception, the source code distributed need not include
161
anything that is normally distributed (in either source or binary
162
form) with the major components (compiler, kernel, and so on) of the
163
operating system on which the executable runs, unless that component
164
itself accompanies the executable.
166
If distribution of executable or object code is made by offering
167
access to copy from a designated place, then offering equivalent
168
access to copy the source code from the same place counts as
169
distribution of the source code, even though third parties are not
170
compelled to copy the source along with the object code.
172
4. You may not copy, modify, sublicense, or distribute the Program
173
except as expressly provided under this License. Any attempt
174
otherwise to copy, modify, sublicense or distribute the Program is
175
void, and will automatically terminate your rights under this License.
176
However, parties who have received copies, or rights, from you under
177
this License will not have their licenses terminated so long as such
178
parties remain in full compliance.
180
5. You are not required to accept this License, since you have not
181
signed it. However, nothing else grants you permission to modify or
182
distribute the Program or its derivative works. These actions are
183
prohibited by law if you do not accept this License. Therefore, by
184
modifying or distributing the Program (or any work based on the
185
Program), you indicate your acceptance of this License to do so, and
186
all its terms and conditions for copying, distributing or modifying
187
the Program or works based on it.
189
6. Each time you redistribute the Program (or any work based on the
190
Program), the recipient automatically receives a license from the
191
original licensor to copy, distribute or modify the Program subject to
192
these terms and conditions. You may not impose any further
193
restrictions on the recipients' exercise of the rights granted herein.
194
You are not responsible for enforcing compliance by third parties to
197
7. If, as a consequence of a court judgment or allegation of patent
198
infringement or for any other reason (not limited to patent issues),
199
conditions are imposed on you (whether by court order, agreement or
200
otherwise) that contradict the conditions of this License, they do not
201
excuse you from the conditions of this License. If you cannot
202
distribute so as to satisfy simultaneously your obligations under this
203
License and any other pertinent obligations, then as a consequence you
204
may not distribute the Program at all. For example, if a patent
205
license would not permit royalty-free redistribution of the Program by
206
all those who receive copies directly or indirectly through you, then
207
the only way you could satisfy both it and this License would be to
208
refrain entirely from distribution of the Program.
210
If any portion of this section is held invalid or unenforceable under
211
any particular circumstance, the balance of the section is intended to
212
apply and the section as a whole is intended to apply in other
215
It is not the purpose of this section to induce you to infringe any
216
patents or other property right claims or to contest validity of any
217
such claims; this section has the sole purpose of protecting the
218
integrity of the free software distribution system, which is
219
implemented by public license practices. Many people have made
220
generous contributions to the wide range of software distributed
221
through that system in reliance on consistent application of that
222
system; it is up to the author/donor to decide if he or she is willing
223
to distribute software through any other system and a licensee cannot
226
This section is intended to make thoroughly clear what is believed to
227
be a consequence of the rest of this License.
229
8. If the distribution and/or use of the Program is restricted in
230
certain countries either by patents or by copyrighted interfaces, the
231
original copyright holder who places the Program under this License
232
may add an explicit geographical distribution limitation excluding
233
those countries, so that distribution is permitted only in or among
234
countries not thus excluded. In such case, this License incorporates
235
the limitation as if written in the body of this License.
237
9. The Free Software Foundation may publish revised and/or new versions
238
of the General Public License from time to time. Such new versions will
239
be similar in spirit to the present version, but may differ in detail to
240
address new problems or concerns.
242
Each version is given a distinguishing version number. If the Program
243
specifies a version number of this License which applies to it and "any
244
later version", you have the option of following the terms and conditions
245
either of that version or of any later version published by the Free
246
Software Foundation. If the Program does not specify a version number of
247
this License, you may choose any version ever published by the Free Software
250
10. If you wish to incorporate parts of the Program into other free
251
programs whose distribution conditions are different, write to the author
252
to ask for permission. For software which is copyrighted by the Free
253
Software Foundation, write to the Free Software Foundation; we sometimes
254
make exceptions for this. Our decision will be guided by the two goals
255
of preserving the free status of all derivatives of our free software and
256
of promoting the sharing and reuse of software generally.
260
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
262
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
266
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
267
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268
REPAIR OR CORRECTION.
270
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278
POSSIBILITY OF SUCH DAMAGES.
280
END OF TERMS AND CONDITIONS
282
How to Apply These Terms to Your New Programs
284
If you develop a new program, and you want it to be of the greatest
285
possible use to the public, the best way to achieve this is to make it
286
free software which everyone can redistribute and change under these terms.
288
To do so, attach the following notices to the program. It is safest
289
to attach them to the start of each source file to most effectively
290
convey the exclusion of warranty; and each file should have at least
291
the "copyright" line and a pointer to where the full notice is found.
293
<one line to give the program's name and a brief idea of what it does.>
294
Copyright (C) <year> <name of author>
296
This program is free software; you can redistribute it and/or modify
297
it under the terms of the GNU General Public License as published by
298
the Free Software Foundation; either version 2 of the License, or
299
(at your option) any later version.
301
This program is distributed in the hope that it will be useful,
302
but WITHOUT ANY WARRANTY; without even the implied warranty of
303
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
304
GNU General Public License for more details.
306
You should have received a copy of the GNU General Public License
307
along with this program; if not, write to the Free Software
308
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
311
Also add information on how to contact you by electronic and paper mail.
313
If the program is interactive, make it output a short notice like this
314
when it starts in an interactive mode:
316
Gnomovision version 69, Copyright (C) year name of author
317
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
318
This is free software, and you are welcome to redistribute it
319
under certain conditions; type `show c' for details.
321
The hypothetical commands `show w' and `show c' should show the appropriate
322
parts of the General Public License. Of course, the commands you use may
323
be called something other than `show w' and `show c'; they could even be
324
mouse-clicks or menu items--whatever suits your program.
326
You should also get your employer (if you work as a programmer) or your
327
school, if any, to sign a "copyright disclaimer" for the program, if
328
necessary. Here is a sample; alter the names:
330
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
331
`Gnomovision' (which makes passes at compilers) written by James Hacker.
333
<signature of Ty Coon>, 1 April 1989
334
Ty Coon, President of Vice
336
This General Public License does not permit incorporating your program into
337
proprietary programs. If your program is a subroutine library, you may
338
consider it more useful to permit linking proprietary applications with the
339
library. If this is what you want to do, use the GNU Lesser General
340
Public License instead of this License.
added
removed
workarounds/LICENSE
