/lib/third-party-licenses/license-gpl2.txt

  1GNU General Public License
  2**************************
  3
  4     	    GNU GENERAL PUBLIC LICENSE
  5     	       Version 2, June 1991
  6     
  7     Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  8     		  675 Mass Ave, Cambridge, MA 02139, USA
  9     Everyone is permitted to copy and distribute verbatim copies
 10     of this license document, but changing it is not allowed.
 11     
 12     		    Preamble
 13     
 14     The licenses for most software are designed to take away your
 15     freedom to share and change it.  By contrast, the GNU General Public
 16     License is intended to guarantee your freedom to share and change free
 17     software--to make sure the software is free for all its users.  This
 18     General Public License applies to most of the Free Software
 19     Foundation's software and to any other program whose authors commit to
 20     using it.  (Some other Free Software Foundation software is covered by
 21     the GNU Library General Public License instead.)  You can apply it to
 22     your programs, too.
 23     
 24     When we speak of free software, we are referring to freedom, not
 25     price.  Our General Public Licenses are designed to make sure that you
 26     have the freedom to distribute copies of free software (and charge for
 27     this service if you wish), that you receive source code or can get it
 28     if you want it, that you can change the software or use pieces of it
 29     in new free programs; and that you know you can do these things.
 30     
 31     To protect your rights, we need to make restrictions that forbid
 32     anyone to deny you these rights or to ask you to surrender the rights.
 33     These restrictions translate to certain responsibilities for you if you
 34     distribute copies of the software, or if you modify it.
 35     
 36     For example, if you distribute copies of such a program, whether
 37     gratis or for a fee, you must give the recipients all the rights that
 38     you have.  You must make sure that they, too, receive or can get the
 39     source code.  And you must show them these terms so they know their
 40     rights.
 41     
 42     We protect your rights with two steps: (1) copyright the software, and
 43     (2) offer you this license which gives you legal permission to copy,
 44     distribute and/or modify the software.
 45     
 46     Also, for each author's protection and ours, we want to make certain
 47     that everyone understands that there is no warranty for this free
 48     software.  If the software is modified by someone else and passed on, we
 49     want its recipients to know that what they have is not the original, so
 50     that any problems introduced by others will not reflect on the original
 51     authors' reputations.
 52     
 53     Finally, any free program is threatened constantly by software
 54     patents.  We wish to avoid the danger that redistributors of a free
 55     program will individually obtain patent licenses, in effect making the
 56     program proprietary.  To prevent this, we have made it clear that any
 57     patent must be licensed for everyone's free use or not licensed at all.
 58     
 59     The precise terms and conditions for copying, distribution and
 60     modification follow.
 61     
 62     	    GNU GENERAL PUBLIC LICENSE
 63     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 64     
 65     0. This License applies to any program or other work which contains
 66     a notice placed by the copyright holder saying it may be distributed
 67     under the terms of this General Public License.  The "Program", below,
 68     refers to any such program or work, and a "work based on the Program"
 69     means either the Program or any derivative work under copyright law:
 70     that is to say, a work containing the Program or a portion of it,
 71     either verbatim or with modifications and/or translated into another
 72     language.  (Hereinafter, translation is included without limitation in
 73     the term "modification".)  Each licensee is addressed as "you".
 74     
 75     Activities other than copying, distribution and modification are not
 76     covered by this License; they are outside its scope.  The act of
 77     running the Program is not restricted, and the output from the Program
 78     is covered only if its contents constitute a work based on the
 79     Program (independent of having been made by running the Program).
 80     Whether that is true depends on what the Program does.
 81     
 82     1. You may copy and distribute verbatim copies of the Program's
 83     source code as you receive it, in any medium, provided that you
 84     conspicuously and appropriately publish on each copy an appropriate
 85     copyright notice and disclaimer of warranty; keep intact all the
 86     notices that refer to this License and to the absence of any warranty;
 87     and give any other recipients of the Program a copy of this License
 88     along with the Program.
 89     
 90     You may charge a fee for the physical act of transferring a copy, and
 91     you may at your option offer warranty protection in exchange for a fee.
 92     
 93     2. You may modify your copy or copies of the Program or any portion
 94     of it, thus forming a work based on the Program, and copy and
 95     distribute such modifications or work under the terms of Section 1
 96     above, provided that you also meet all of these conditions:
 97     
 98     a) You must cause the modified files to carry prominent notices
 99     stating that you changed the files and the date of any change.
100     
101     b) You must cause any work that you distribute or publish, that in
102     whole or in part contains or is derived from the Program or any
103     part thereof, to be licensed as a whole at no charge to all third
104     parties under the terms of this License.
105     
106     c) If the modified program normally reads commands interactively
107     when run, you must cause it, when started running for such
108     interactive use in the most ordinary way, to print or display an
109     announcement including an appropriate copyright notice and a
110     notice that there is no warranty (or else, saying that you provide
111     a warranty) and that users may redistribute the program under
112     these conditions, and telling the user how to view a copy of this
113     License.  (Exception: if the Program itself is interactive but
114     does not normally print such an announcement, your work based on
115     the Program is not required to print an announcement.)
116     
117     These requirements apply to the modified work as a whole.  If
118     identifiable sections of that work are not derived from the Program,
119     and can be reasonably considered independent and separate works in
120     themselves, then this License, and its terms, do not apply to those
121     sections when you distribute them as separate works.  But when you
122     distribute the same sections as part of a whole which is a work based
123     on the Program, the distribution of the whole must be on the terms of
124     this License, whose permissions for other licensees extend to the
125     entire whole, and thus to each and every part regardless of who wrote it.
126     
127     Thus, it is not the intent of this section to claim rights or contest
128     your rights to work written entirely by you; rather, the intent is to
129     exercise the right to control the distribution of derivative or
130     collective works based on the Program.
131     
132     In addition, mere aggregation of another work not based on the Program
133     with the Program (or with a work based on the Program) on a volume of
134     a storage or distribution medium does not bring the other work under
135     the scope of this License.
136     
137     3. You may copy and distribute the Program (or a work based on it,
138     under Section 2) in object code or executable form under the terms of
139     Sections 1 and 2 above provided that you also do one of the following:
140     
141     a) Accompany it with the complete corresponding machine-readable
142     source code, which must be distributed under the terms of Sections
143     1 and 2 above on a medium customarily used for software interchange; or,
144     
145     b) Accompany it with a written offer, valid for at least three
146     years, to give any third party, for a charge no more than your
147     cost of physically performing source distribution, a complete
148     machine-readable copy of the corresponding source code, to be
149     distributed under the terms of Sections 1 and 2 above on a medium
150     customarily used for software interchange; or,
151     
152     c) Accompany it with the information you received as to the offer
153     to distribute corresponding source code.  (This alternative is
154     allowed only for noncommercial distribution and only if you
155     received the program in object code or executable form with such
156     an offer, in accord with Subsection b above.)
157     
158     The source code for a work means the preferred form of the work for
159     making modifications to it.  For an executable work, complete source
160     code means all the source code for all modules it contains, plus any
161     associated interface definition files, plus the scripts used to
162     control compilation and installation of the executable.  However, as a
163     special exception, the source code distributed need not include
164     anything that is normally distributed (in either source or binary
165     form) with the major components (compiler, kernel, and so on) of the
166     operating system on which the executable runs, unless that component
167     itself accompanies the executable.
168     
169     If distribution of executable or object code is made by offering
170     access to copy from a designated place, then offering equivalent
171     access to copy the source code from the same place counts as
172     distribution of the source code, even though third parties are not
173     compelled to copy the source along with the object code.
174     
175     4. You may not copy, modify, sublicense, or distribute the Program
176     except as expressly provided under this License.  Any attempt
177     otherwise to copy, modify, sublicense or distribute the Program is
178     void, and will automatically terminate your rights under this License.
179     However, parties who have received copies, or rights, from you under
180     this License will not have their licenses terminated so long as such
181     parties remain in full compliance.
182     
183     5. You are not required to accept this License, since you have not
184     signed it.  However, nothing else grants you permission to modify or
185     distribute the Program or its derivative works.  These actions are
186     prohibited by law if you do not accept this License.  Therefore, by
187     modifying or distributing the Program (or any work based on the
188     Program), you indicate your acceptance of this License to do so, and
189     all its terms and conditions for copying, distributing or modifying
190     the Program or works based on it.
191     
192     6. Each time you redistribute the Program (or any work based on the
193     Program), the recipient automatically receives a license from the
194     original licensor to copy, distribute or modify the Program subject to
195     these terms and conditions.  You may not impose any further
196     restrictions on the recipients' exercise of the rights granted herein.
197     You are not responsible for enforcing compliance by third parties to
198     this License.
199     
200     7. If, as a consequence of a court judgment or allegation of patent
201     infringement or for any other reason (not limited to patent issues),
202     conditions are imposed on you (whether by court order, agreement or
203     otherwise) that contradict the conditions of this License, they do not
204     excuse you from the conditions of this License.  If you cannot
205     distribute so as to satisfy simultaneously your obligations under this
206     License and any other pertinent obligations, then as a consequence you
207     may not distribute the Program at all.  For example, if a patent
208     license would not permit royalty-free redistribution of the Program by
209     all those who receive copies directly or indirectly through you, then
210     the only way you could satisfy both it and this License would be to
211     refrain entirely from distribution of the Program.
212     
213     If any portion of this section is held invalid or unenforceable under
214     any particular circumstance, the balance of the section is intended to
215     apply and the section as a whole is intended to apply in other
216     circumstances.
217     
218     It is not the purpose of this section to induce you to infringe any
219     patents or other property right claims or to contest validity of any
220     such claims; this section has the sole purpose of protecting the
221     integrity of the free software distribution system, which is
222     implemented by public license practices.  Many people have made
223     generous contributions to the wide range of software distributed
224     through that system in reliance on consistent application of that
225     system; it is up to the author/donor to decide if he or she is willing
226     to distribute software through any other system and a licensee cannot
227     impose that choice.
228     
229     This section is intended to make thoroughly clear what is believed to
230     be a consequence of the rest of this License.
231     
232     8. If the distribution and/or use of the Program is restricted in
233     certain countries either by patents or by copyrighted interfaces, the
234     original copyright holder who places the Program under this License
235     may add an explicit geographical distribution limitation excluding
236     those countries, so that distribution is permitted only in or among
237     countries not thus excluded.  In such case, this License incorporates
238     the limitation as if written in the body of this License.
239     
240     9. The Free Software Foundation may publish revised and/or new versions
241     of the General Public License from time to time.  Such new versions will
242     be similar in spirit to the present version, but may differ in detail to
243     address new problems or concerns.
244     
245     Each version is given a distinguishing version number.  If the Program
246     specifies a version number of this License which applies to it and "any
247     later version", you have the option of following the terms and conditions
248     either of that version or of any later version published by the Free
249     Software Foundation.  If the Program does not specify a version number of
250     this License, you may choose any version ever published by the Free Software
251     Foundation.
252     
253     10. If you wish to incorporate parts of the Program into other free
254     programs whose distribution conditions are different, write to the author
255     to ask for permission.  For software which is copyrighted by the Free
256     Software Foundation, write to the Free Software Foundation; we sometimes
257     make exceptions for this.  Our decision will be guided by the two goals
258     of preserving the free status of all derivatives of our free software and
259     of promoting the sharing and reuse of software generally.
260     
261     		    NO WARRANTY
262     
263     11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
264     FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
265     OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
266     PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
267     OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
268     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
269     TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
270     PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
271     REPAIR OR CORRECTION.
272     
273     12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
274     WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
275     REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
276     INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
277     OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
278     TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
279     YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
280     PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
281     POSSIBILITY OF SUCH DAMAGES.
282     
283     	     END OF TERMS AND CONDITIONS
284     
285     Appendix: How to Apply These Terms to Your New Programs
286     
287     If you develop a new program, and you want it to be of the greatest
288     possible use to the public, the best way to achieve this is to make it
289     free software which everyone can redistribute and change under these terms.
290     
291     To do so, attach the following notices to the program.  It is safest
292     to attach them to the start of each source file to most effectively
293     convey the exclusion of warranty; and each file should have at least
294     the "copyright" line and a pointer to where the full notice is found.
295     
296     <one line to give the program's name and a brief idea of what it does.>
297     Copyright (C) 19yy  <name of author>
298     
299     This program is free software; you can redistribute it and/or modify
300     it under the terms of version 2 of the GNU General Public License as
301     published by the Free Software Foundation.
302     
303     
304     This program is distributed in the hope that it will be useful,
305     but WITHOUT ANY WARRANTY; without even the implied warranty of
306     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
307     GNU General Public License for more details.
308     
309     You should have received a copy of the GNU General Public License
310     along with this program; if not, write to the Free Software
311     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
312     
313     Also add information on how to contact you by electronic and paper mail.
314     
315     If the program is interactive, make it output a short notice like this
316     when it starts in an interactive mode:
317     
318     Gnomovision version 69, Copyright (C) 19yy name of author
319     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
320     This is free software, and you are welcome to redistribute it
321     under certain conditions; type `show c' for details.
322     
323     The hypothetical commands `show w' and `show c' should show the appropriate
324     parts of the General Public License.  Of course, the commands you use may
325     be called something other than `show w' and `show c'; they could even be
326     mouse-clicks or menu items--whatever suits your program.
327     
328     You should also get your employer (if you work as a programmer) or your
329     school, if any, to sign a "copyright disclaimer" for the program, if
330     necessary.  Here is a sample; alter the names:
331     
332     Yoyodyne, Inc., hereby disclaims all copyright interest in the program
333     `Gnomovision' (which makes passes at compilers) written by James Hacker.
334     
335     <signature of Ty Coon>, 1 April 1989
336     Ty Coon, President of Vice
337     
338     This General Public License does not permit incorporating your program into
339     proprietary programs.  If your program is a subroutine library, you may
340     consider it more useful to permit linking proprietary applications with the
341     library.  If this is what you want to do, use the GNU Library General
342     Public License instead of this License.
343