1		    GNU GENERAL PUBLIC LICENSE
2		       Version 2, June 1991
3
4 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
5                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
6 Everyone is permitted to copy and distribute verbatim copies
7 of this license document, but changing it is not allowed.
8
9			    Preamble
10
11  The licenses for most software are designed to take away your
12freedom to share and change it.  By contrast, the GNU General Public
13License is intended to guarantee your freedom to share and change free
14software--to make sure the software is free for all its users.  This
15General Public License applies to most of the Free Software
16Foundation's software and to any other program whose authors commit to
17using it.  (Some other Free Software Foundation software is covered by
18the GNU Library General Public License instead.)  You can apply it to
19your programs, too.
20
21  When we speak of free software, we are referring to freedom, not
22price.  Our General Public Licenses are designed to make sure that you
23have the freedom to distribute copies of free software (and charge for
24this service if you wish), that you receive source code or can get it
25if you want it, that you can change the software or use pieces of it
26in new free programs; and that you know you can do these things.
27
28  To protect your rights, we need to make restrictions that forbid
29anyone to deny you these rights or to ask you to surrender the rights.
30These restrictions translate to certain responsibilities for you if you
31distribute copies of the software, or if you modify it.
32
33  For example, if you distribute copies of such a program, whether
34gratis or for a fee, you must give the recipients all the rights that
35you have.  You must make sure that they, too, receive or can get the
36source code.  And you must show them these terms so they know their
37rights.
38
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,
41distribute and/or modify the software.
42
43  Also, for each author's protection and ours, we want to make certain
44that everyone understands that there is no warranty for this free
45software.  If the software is modified by someone else and passed on, we
46want its recipients to know that what they have is not the original, so
47that any problems introduced by others will not reflect on the original
48authors' reputations.
49
50  Finally, any free program is threatened constantly by software
51patents.  We wish to avoid the danger that redistributors of a free
52program will individually obtain patent licenses, in effect making the
53program proprietary.  To prevent this, we have made it clear that any
54patent must be licensed for everyone's free use or not licensed at all.
55
56  The precise terms and conditions for copying, distribution and
57modification follow.
58
59		    GNU GENERAL PUBLIC LICENSE
60   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
61
62  0. This License applies to any program or other work which contains
63a notice placed by the copyright holder saying it may be distributed
64under the terms of this General Public License.  The "Program", below,
65refers to any such program or work, and a "work based on the Program"
66means either the Program or any derivative work under copyright law:
67that is to say, a work containing the Program or a portion of it,
68either verbatim or with modifications and/or translated into another
69language.  (Hereinafter, translation is included without limitation in
70the term "modification".)  Each licensee is addressed as "you".
71
72Activities other than copying, distribution and modification are not
73covered by this License; they are outside its scope.  The act of
74running the Program is not restricted, and the output from the Program
75is covered only if its contents constitute a work based on the
76Program (independent of having been made by running the Program).
77Whether that is true depends on what the Program does.
78
79  1. You may copy and distribute verbatim copies of the Program's
80source code as you receive it, in any medium, provided that you
81conspicuously and appropriately publish on each copy an appropriate
82copyright notice and disclaimer of warranty; keep intact all the
83notices that refer to this License and to the absence of any warranty;
84and give any other recipients of the Program a copy of this License
85along with the Program.
86
87You may charge a fee for the physical act of transferring a copy, and
88you may at your option offer warranty protection in exchange for a fee.
89
90  2. You may modify your copy or copies of the Program or any portion
91of it, thus forming a work based on the Program, and copy and
92distribute such modifications or work under the terms of Section 1
93above, provided that you also meet all of these conditions:
94
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.
97
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.
102
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.)
113
114These requirements apply to the modified work as a whole.  If
115identifiable sections of that work are not derived from the Program,
116and can be reasonably considered independent and separate works in
117themselves, then this License, and its terms, do not apply to those
118sections when you distribute them as separate works.  But when you
119distribute the same sections as part of a whole which is a work based
120on the Program, the distribution of the whole must be on the terms of
121this License, whose permissions for other licensees extend to the
122entire whole, and thus to each and every part regardless of who wrote it.
123
124Thus, it is not the intent of this section to claim rights or contest
125your rights to work written entirely by you; rather, the intent is to
126exercise the right to control the distribution of derivative or
127collective works based on the Program.
128
129In addition, mere aggregation of another work not based on the Program
130with the Program (or with a work based on the Program) on a volume of
131a storage or distribution medium does not bring the other work under
132the scope of this License.
133
134  3. You may copy and distribute the Program (or a work based on it,
135under Section 2) in object code or executable form under the terms of
136Sections 1 and 2 above provided that you also do one of the following:
137
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,
141
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,
148
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.)
154
155The source code for a work means the preferred form of the work for
156making modifications to it.  For an executable work, complete source
157code means all the source code for all modules it contains, plus any
158associated interface definition files, plus the scripts used to
159control compilation and installation of the executable.  However, as a
160special exception, the source code distributed need not include
161anything that is normally distributed (in either source or binary
162form) with the major components (compiler, kernel, and so on) of the
163operating system on which the executable runs, unless that component
164itself accompanies the executable.
165
166If distribution of executable or object code is made by offering
167access to copy from a designated place, then offering equivalent
168access to copy the source code from the same place counts as
169distribution of the source code, even though third parties are not
170compelled to copy the source along with the object code.
171
172  4. You may not copy, modify, sublicense, or distribute the Program
173except as expressly provided under this License.  Any attempt
174otherwise to copy, modify, sublicense or distribute the Program is
175void, and will automatically terminate your rights under this License.
176However, parties who have received copies, or rights, from you under
177this License will not have their licenses terminated so long as such
178parties remain in full compliance.
179
180  5. You are not required to accept this License, since you have not
181signed it.  However, nothing else grants you permission to modify or
182distribute the Program or its derivative works.  These actions are
183prohibited by law if you do not accept this License.  Therefore, by
184modifying or distributing the Program (or any work based on the
185Program), you indicate your acceptance of this License to do so, and
186all its terms and conditions for copying, distributing or modifying
187the Program or works based on it.
188
189  6. Each time you redistribute the Program (or any work based on the
190Program), the recipient automatically receives a license from the
191original licensor to copy, distribute or modify the Program subject to
192these terms and conditions.  You may not impose any further
193restrictions on the recipients' exercise of the rights granted herein.
194You are not responsible for enforcing compliance by third parties to
195this License.
196
197  7. If, as a consequence of a court judgment or allegation of patent
198infringement or for any other reason (not limited to patent issues),
199conditions are imposed on you (whether by court order, agreement or
200otherwise) that contradict the conditions of this License, they do not
201excuse you from the conditions of this License.  If you cannot
202distribute so as to satisfy simultaneously your obligations under this
203License and any other pertinent obligations, then as a consequence you
204may not distribute the Program at all.  For example, if a patent
205license would not permit royalty-free redistribution of the Program by
206all those who receive copies directly or indirectly through you, then
207the only way you could satisfy both it and this License would be to
208refrain entirely from distribution of the Program.
209
210If any portion of this section is held invalid or unenforceable under
211any particular circumstance, the balance of the section is intended to
212apply and the section as a whole is intended to apply in other
213circumstances.
214
215It is not the purpose of this section to induce you to infringe any
216patents or other property right claims or to contest validity of any
217such claims; this section has the sole purpose of protecting the
218integrity of the free software distribution system, which is
219implemented by public license practices.  Many people have made
220generous contributions to the wide range of software distributed
221through that system in reliance on consistent application of that
222system; it is up to the author/donor to decide if he or she is willing
223to distribute software through any other system and a licensee cannot
224impose that choice.
225
226This section is intended to make thoroughly clear what is believed to
227be a consequence of the rest of this License.
228
229  8. If the distribution and/or use of the Program is restricted in
230certain countries either by patents or by copyrighted interfaces, the
231original copyright holder who places the Program under this License
232may add an explicit geographical distribution limitation excluding
233those countries, so that distribution is permitted only in or among
234countries not thus excluded.  In such case, this License incorporates
235the limitation as if written in the body of this License.
236
237  9. The Free Software Foundation may publish revised and/or new versions
238of the General Public License from time to time.  Such new versions will
239be similar in spirit to the present version, but may differ in detail to
240address new problems or concerns.
241
242Each version is given a distinguishing version number.  If the Program
243specifies a version number of this License which applies to it and "any
244later version", you have the option of following the terms and conditions
245either of that version or of any later version published by the Free
246Software Foundation.  If the Program does not specify a version number of
247this License, you may choose any version ever published by the Free Software
248Foundation.
249
250  10. If you wish to incorporate parts of the Program into other free
251programs whose distribution conditions are different, write to the author
252to ask for permission.  For software which is copyrighted by the Free
253Software Foundation, write to the Free Software Foundation; we sometimes
254make exceptions for this.  Our decision will be guided by the two goals
255of preserving the free status of all derivatives of our free software and
256of promoting the sharing and reuse of software generally.
257
258			    NO WARRANTY
259
260  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
262OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
266TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
267PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268REPAIR OR CORRECTION.
269
270  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278POSSIBILITY OF SUCH DAMAGES.
279
280		     END OF TERMS AND CONDITIONS
281
282	    How to Apply These Terms to Your New Programs
283
284  If you develop a new program, and you want it to be of the greatest
285possible use to the public, the best way to achieve this is to make it
286free software which everyone can redistribute and change under these terms.
287
288  To do so, attach the following notices to the program.  It is safest
289to attach them to the start of each source file to most effectively
290convey the exclusion of warranty; and each file should have at least
291the "copyright" line and a pointer to where the full notice is found.
292
293    <one line to give the program's name and a brief idea of what it does.>
294    Copyright (C) <year>  <name of author>
295
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.
300
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.
305
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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
309
310
311Also add information on how to contact you by electronic and paper mail.
312
313If the program is interactive, make it output a short notice like this
314when it starts in an interactive mode:
315
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.
320
321The hypothetical commands `show w' and `show c' should show the appropriate
322parts of the General Public License.  Of course, the commands you use may
323be called something other than `show w' and `show c'; they could even be
324mouse-clicks or menu items--whatever suits your program.
325
326You should also get your employer (if you work as a programmer) or your
327school, if any, to sign a "copyright disclaimer" for the program, if
328necessary.  Here is a sample; alter the names:
329
330  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
331  `Gnomovision' (which makes passes at compilers) written by James Hacker.
332
333  <signature of Ty Coon>, 1 April 1989
334  Ty Coon, President of Vice
335
336This General Public License does not permit incorporating your program into
337proprietary programs.  If your program is a subroutine library, you may
338consider it more useful to permit linking proprietary applications with the
339library.  If this is what you want to do, use the GNU Library General
340Public License instead of this License.
341		  GNU LESSER GENERAL PUBLIC LICENSE
342		       Version 2.1, February 1999
343
344 Copyright (C) 1991, 1999 Free Software Foundation, Inc.
345     51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
346 Everyone is permitted to copy and distribute verbatim copies
347 of this license document, but changing it is not allowed.
348
349[This is the first released version of the Lesser GPL.  It also counts
350 as the successor of the GNU Library Public License, version 2, hence
351 the version number 2.1.]
352
353			    Preamble
354
355  The licenses for most software are designed to take away your
356freedom to share and change it.  By contrast, the GNU General Public
357Licenses are intended to guarantee your freedom to share and change
358free software--to make sure the software is free for all its users.
359
360  This license, the Lesser General Public License, applies to some
361specially designated software packages--typically libraries--of the
362Free Software Foundation and other authors who decide to use it.  You
363can use it too, but we suggest you first think carefully about whether
364this license or the ordinary General Public License is the better
365strategy to use in any particular case, based on the explanations below.
366
367  When we speak of free software, we are referring to freedom of use,
368not price.  Our General Public Licenses are designed to make sure that
369you have the freedom to distribute copies of free software (and charge
370for this service if you wish); that you receive source code or can get
371it if you want it; that you can change the software and use pieces of
372it in new free programs; and that you are informed that you can do
373these things.
374
375  To protect your rights, we need to make restrictions that forbid
376distributors to deny you these rights or to ask you to surrender these
377rights.  These restrictions translate to certain responsibilities for
378you if you distribute copies of the library or if you modify it.
379
380  For example, if you distribute copies of the library, whether gratis
381or for a fee, you must give the recipients all the rights that we gave
382you.  You must make sure that they, too, receive or can get the source
383code.  If you link other code with the library, you must provide
384complete object files to the recipients, so that they can relink them
385with the library after making changes to the library and recompiling
386it.  And you must show them these terms so they know their rights.
387
388  We protect your rights with a two-step method: (1) we copyright the
389library, and (2) we offer you this license, which gives you legal
390permission to copy, distribute and/or modify the library.
391
392  To protect each distributor, we want to make it very clear that
393there is no warranty for the free library.  Also, if the library is
394modified by someone else and passed on, the recipients should know
395that what they have is not the original version, so that the original
396author's reputation will not be affected by problems that might be
397introduced by others.
398
399  Finally, software patents pose a constant threat to the existence of
400any free program.  We wish to make sure that a company cannot
401effectively restrict the users of a free program by obtaining a
402restrictive license from a patent holder.  Therefore, we insist that
403any patent license obtained for a version of the library must be
404consistent with the full freedom of use specified in this license.
405
406  Most GNU software, including some libraries, is covered by the
407ordinary GNU General Public License.  This license, the GNU Lesser
408General Public License, applies to certain designated libraries, and
409is quite different from the ordinary General Public License.  We use
410this license for certain libraries in order to permit linking those
411libraries into non-free programs.
412
413  When a program is linked with a library, whether statically or using
414a shared library, the combination of the two is legally speaking a
415combined work, a derivative of the original library.  The ordinary
416General Public License therefore permits such linking only if the
417entire combination fits its criteria of freedom.  The Lesser General
418Public License permits more lax criteria for linking other code with
419the library.
420
421  We call this license the "Lesser" General Public License because it
422does Less to protect the user's freedom than the ordinary General
423Public License.  It also provides other free software developers Less
424of an advantage over competing non-free programs.  These disadvantages
425are the reason we use the ordinary General Public License for many
426libraries.  However, the Lesser license provides advantages in certain
427special circumstances.
428
429  For example, on rare occasions, there may be a special need to
430encourage the widest possible use of a certain library, so that it becomes
431a de-facto standard.  To achieve this, non-free programs must be
432allowed to use the library.  A more frequent case is that a free
433library does the same job as widely used non-free libraries.  In this
434case, there is little to gain by limiting the free library to free
435software only, so we use the Lesser General Public License.
436
437  In other cases, permission to use a particular library in non-free
438programs enables a greater number of people to use a large body of
439free software.  For example, permission to use the GNU C Library in
440non-free programs enables many more people to use the whole GNU
441operating system, as well as its variant, the GNU/Linux operating
442system.
443
444  Although the Lesser General Public License is Less protective of the
445users' freedom, it does ensure that the user of a program that is
446linked with the Library has the freedom and the wherewithal to run
447that program using a modified version of the Library.
448
449  The precise terms and conditions for copying, distribution and
450modification follow.  Pay close attention to the difference between a
451"work based on the library" and a "work that uses the library".  The
452former contains code derived from the library, whereas the latter must
453be combined with the library in order to run.
454
455		  GNU LESSER GENERAL PUBLIC LICENSE
456   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
457
458  0. This License Agreement applies to any software library or other
459program which contains a notice placed by the copyright holder or
460other authorized party saying it may be distributed under the terms of
461this Lesser General Public License (also called "this License").
462Each licensee is addressed as "you".
463
464  A "library" means a collection of software functions and/or data
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467
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472portion of it, either verbatim or with modifications and/or translated
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474included without limitation in the term "modification".)
475
476  "Source code" for a work means the preferred form of the work for
477making modifications to it.  For a library, complete source code means
478all the source code for all modules it contains, plus any associated
479interface definition files, plus the scripts used to control compilation
480and installation of the library.
481
482  Activities other than copying, distribution and modification are not
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486on the Library (independent of the use of the Library in a tool for
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488and what the program that uses the Library does.
489
490  1. You may copy and distribute verbatim copies of the Library's
491complete source code as you receive it, in any medium, provided that
492you conspicuously and appropriately publish on each copy an
493appropriate copyright notice and disclaimer of warranty; keep intact
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497
498  You may charge a fee for the physical act of transferring a copy,
499and you may at your option offer warranty protection in exchange for a
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501
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506
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508
509    b) You must cause the files modified to carry prominent notices
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511
512    c) You must cause the whole of the work to be licensed at no
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515    d) If a facility in the modified Library refers to a function or a
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522
523    (For example, a function in a library to compute square roots has
524    a purpose that is entirely well-defined independent of the
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529
530These requirements apply to the modified work as a whole.  If
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538entire whole, and thus to each and every part regardless of who wrote
539it.
540
541Thus, it is not the intent of this section to claim rights or contest
542your rights to work written entirely by you; rather, the intent is to
543exercise the right to control the distribution of derivative or
544collective works based on the Library.
545
546In addition, mere aggregation of another work not based on the Library
547with the Library (or with a work based on the Library) on a volume of
548a storage or distribution medium does not bring the other work under
549the scope of this License.
550
551  3. You may opt to apply the terms of the ordinary GNU General Public
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553this, you must alter all the notices that refer to this License, so
554that they refer to the ordinary GNU General Public License, version 2,
555instead of to this License.  (If a newer version than version 2 of the
556ordinary GNU General Public License has appeared, then you can specify
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558these notices.
559
560  Once this change is made in a given copy, it is irreversible for
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562subsequent copies and derivative works made from that copy.
563
564  This option is useful when you wish to copy part of the code of
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566
567  4. You may copy and distribute the Library (or a portion or
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570it with the complete corresponding machine-readable source code, which
571must be distributed under the terms of Sections 1 and 2 above on a
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573
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579
580  5. A program that contains no derivative of any portion of the
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585
586  However, linking a "work that uses the Library" with the Library
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1162  For an executable, the required form of the "work that uses the
1163Library" must include any data and utility programs needed for
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1165the materials to be distributed need not include anything that is
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1167components (compiler, kernel, and so on) of the operating system on
1168which the executable runs, unless that component itself accompanies
1169the executable.
1170
1171  It may happen that this requirement contradicts the license
1172restrictions of other proprietary libraries that do not normally
1173accompany the operating system.  Such a contradiction means you cannot
1174use both them and the Library together in an executable that you
1175distribute.
1176
1177  7. You may place library facilities that are a work based on the
1178Library side-by-side in a single library together with other library
1179facilities not covered by this License, and distribute such a combined
1180library, provided that the separate distribution of the work based on
1181the Library and of the other library facilities is otherwise
1182permitted, and provided that you do these two things:
1183
1184    a) Accompany the combined library with a copy of the same work
1185    based on the Library, uncombined with any other library
1186    facilities.  This must be distributed under the terms of the
1187    Sections above.
1188
1189    b) Give prominent notice with the combined library of the fact
1190    that part of it is a work based on the Library, and explaining
1191    where to find the accompanying uncombined form of the same work.
1192
1193  8. You may not copy, modify, sublicense, link with, or distribute
1194the Library except as expressly provided under this License.  Any
1195attempt otherwise to copy, modify, sublicense, link with, or
1196distribute the Library is void, and will automatically terminate your
1197rights under this License.  However, parties who have received copies,
1198or rights, from you under this License will not have their licenses
1199terminated so long as such parties remain in full compliance.
1200
1201  9. You are not required to accept this License, since you have not
1202signed it.  However, nothing else grants you permission to modify or
1203distribute the Library or its derivative works.  These actions are
1204prohibited by law if you do not accept this License.  Therefore, by
1205modifying or distributing the Library (or any work based on the
1206Library), you indicate your acceptance of this License to do so, and
1207all its terms and conditions for copying, distributing or modifying
1208the Library or works based on it.
1209
1210  10. Each time you redistribute the Library (or any work based on the
1211Library), the recipient automatically receives a license from the
1212original licensor to copy, distribute, link with or modify the Library
1213subject to these terms and conditions.  You may not impose any further
1214restrictions on the recipients' exercise of the rights granted herein.
1215You are not responsible for enforcing compliance by third parties with
1216this License.
1217
1218  11. If, as a consequence of a court judgment or allegation of patent
1219infringement or for any other reason (not limited to patent issues),
1220conditions are imposed on you (whether by court order, agreement or
1221otherwise) that contradict the conditions of this License, they do not
1222excuse you from the conditions of this License.  If you cannot
1223distribute so as to satisfy simultaneously your obligations under this
1224License and any other pertinent obligations, then as a consequence you
1225may not distribute the Library at all.  For example, if a patent
1226license would not permit royalty-free redistribution of the Library by
1227all those who receive copies directly or indirectly through you, then
1228the only way you could satisfy both it and this License would be to
1229refrain entirely from distribution of the Library.
1230
1231If any portion of this section is held invalid or unenforceable under any
1232particular circumstance, the balance of the section is intended to apply,
1233and the section as a whole is intended to apply in other circumstances.
1234
1235It is not the purpose of this section to induce you to infringe any
1236patents or other property right claims or to contest validity of any
1237such claims; this section has the sole purpose of protecting the
1238integrity of the free software distribution system which is
1239implemented by public license practices.  Many people have made
1240generous contributions to the wide range of software distributed
1241through that system in reliance on consistent application of that
1242system; it is up to the author/donor to decide if he or she is willing
1243to distribute software through any other system and a licensee cannot
1244impose that choice.
1245
1246This section is intended to make thoroughly clear what is believed to
1247be a consequence of the rest of this License.
1248
1249  12. If the distribution and/or use of the Library is restricted in
1250certain countries either by patents or by copyrighted interfaces, the
1251original copyright holder who places the Library under this License may add
1252an explicit geographical distribution limitation excluding those countries,
1253so that distribution is permitted only in or among countries not thus
1254excluded.  In such case, this License incorporates the limitation as if
1255written in the body of this License.
1256
1257  13. The Free Software Foundation may publish revised and/or new
1258versions of the Lesser General Public License from time to time.
1259Such new versions will be similar in spirit to the present version,
1260but may differ in detail to address new problems or concerns.
1261
1262Each version is given a distinguishing version number.  If the Library
1263specifies a version number of this License which applies to it and
1264"any later version", you have the option of following the terms and
1265conditions either of that version or of any later version published by
1266the Free Software Foundation.  If the Library does not specify a
1267license version number, you may choose any version ever published by
1268the Free Software Foundation.
1269
1270  14. If you wish to incorporate parts of the Library into other free
1271programs whose distribution conditions are incompatible with these,
1272write to the author to ask for permission.  For software which is
1273copyrighted by the Free Software Foundation, write to the Free
1274Software Foundation; we sometimes make exceptions for this.  Our
1275decision will be guided by the two goals of preserving the free status
1276of all derivatives of our free software and of promoting the sharing
1277and reuse of software generally.
1278
1279			    NO WARRANTY
1280
1281  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
1282WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
1283EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
1284OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
1285KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
1286IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
1287PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
1288LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
1289THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
1290
1291  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
1292WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
1293AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
1294FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
1295CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
1296LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
1297RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
1298FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
1299SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
1300DAMAGES.
1301
1302		     END OF TERMS AND CONDITIONS
1303
1304           How to Apply These Terms to Your New Libraries
1305
1306  If you develop a new library, and you want it to be of the greatest
1307possible use to the public, we recommend making it free software that
1308everyone can redistribute and change.  You can do so by permitting
1309redistribution under these terms (or, alternatively, under the terms of the
1310ordinary General Public License).
1311
1312  To apply these terms, attach the following notices to the library.  It is
1313safest to attach them to the start of each source file to most effectively
1314convey the exclusion of warranty; and each file should have at least the
1315"copyright" line and a pointer to where the full notice is found.
1316
1317    <one line to give the library's name and a brief idea of what it does.>
1318    Copyright (C) <year>  <name of author>
1319
1320    This library is free software; you can redistribute it and/or
1321    modify it under the terms of the GNU Lesser General Public
1322    License as published by the Free Software Foundation; either
1323    version 2.1 of the License, or (at your option) any later version.
1324
1325    This library is distributed in the hope that it will be useful,
1326    but WITHOUT ANY WARRANTY; without even the implied warranty of
1327    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1328    Lesser General Public License for more details.
1329
1330    You should have received a copy of the GNU Lesser General Public
1331    License along with this library; if not, write to the Free Software
1332    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
1333
1334Also add information on how to contact you by electronic and paper mail.
1335
1336You should also get your employer (if you work as a programmer) or your
1337school, if any, to sign a "copyright disclaimer" for the library, if
1338necessary.  Here is a sample; alter the names:
1339
1340  Yoyodyne, Inc., hereby disclaims all copyright interest in the
1341  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
1342
1343  <signature of Ty Coon>, 1 April 1990
1344  Ty Coon, President of Vice
1345
1346That's all there is to it!
1347
1348
1349		    GNU GENERAL PUBLIC LICENSE
1350		       Version 2, June 1991
1351
1352 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
1353                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
1354 Everyone is permitted to copy and distribute verbatim copies
1355 of this license document, but changing it is not allowed.
1356
1357			    Preamble
1358
1359  The licenses for most software are designed to take away your
1360freedom to share and change it.  By contrast, the GNU General Public
1361License is intended to guarantee your freedom to share and change free
1362software--to make sure the software is free for all its users.  This
1363General Public License applies to most of the Free Software
1364Foundation's software and to any other program whose authors commit to
1365using it.  (Some other Free Software Foundation software is covered by
1366the GNU Library General Public License instead.)  You can apply it to
1367your programs, too.
1368
1369  When we speak of free software, we are referring to freedom, not
1370price.  Our General Public Licenses are designed to make sure that you
1371have the freedom to distribute copies of free software (and charge for
1372this service if you wish), that you receive source code or can get it
1373if you want it, that you can change the software or use pieces of it
1374in new free programs; and that you know you can do these things.
1375
1376  To protect your rights, we need to make restrictions that forbid
1377anyone to deny you these rights or to ask you to surrender the rights.
1378These restrictions translate to certain responsibilities for you if you
1379distribute copies of the software, or if you modify it.
1380
1381  For example, if you distribute copies of such a program, whether
1382gratis or for a fee, you must give the recipients all the rights that
1383you have.  You must make sure that they, too, receive or can get the
1384source code.  And you must show them these terms so they know their
1385rights.
1386
1387  We protect your rights with two steps: (1) copyright the software, and
1388(2) offer you this license which gives you legal permission to copy,
1389distribute and/or modify the software.
1390
1391  Also, for each author's protection and ours, we want to make certain
1392that everyone understands that there is no warranty for this free
1393software.  If the software is modified by someone else and passed on, we
1394want its recipients to know that what they have is not the original, so
1395that any problems introduced by others will not reflect on the original
1396authors' reputations.
1397
1398  Finally, any free program is threatened constantly by software
1399patents.  We wish to avoid the danger that redistributors of a free
1400program will individually obtain patent licenses, in effect making the
1401program proprietary.  To prevent this, we have made it clear that any
1402patent must be licensed for everyone's free use or not licensed at all.
1403
1404  The precise terms and conditions for copying, distribution and
1405modification follow.
1406
1407		    GNU GENERAL PUBLIC LICENSE
1408   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
1409
1410  0. This License applies to any program or other work which contains
1411a notice placed by the copyright holder saying it may be distributed
1412under the terms of this General Public License.  The "Program", below,
1413refers to any such program or work, and a "work based on the Program"
1414means either the Program or any derivative work under copyright law:
1415that is to say, a work containing the Program or a portion of it,
1416either verbatim or with modifications and/or translated into another
1417language.  (Hereinafter, translation is included without limitation in
1418the term "modification".)  Each licensee is addressed as "you".
1419
1420Activities other than copying, distribution and modification are not
1421covered by this License; they are outside its scope.  The act of
1422running the Program is not restricted, and the output from the Program
1423is covered only if its contents constitute a work based on the
1424Program (independent of having been made by running the Program).
1425Whether that is true depends on what the Program does.
1426
1427  1. You may copy and distribute verbatim copies of the Program's
1428source code as you receive it, in any medium, provided that you
1429conspicuously and appropriately publish on each copy an appropriate
1430copyright notice and disclaimer of warranty; keep intact all the
1431notices that refer to this License and to the absence of any warranty;
1432and give any other recipients of the Program a copy of this License
1433along with the Program.
1434
1435You may charge a fee for the physical act of transferring a copy, and
1436you may at your option offer warranty protection in exchange for a fee.
1437
1438  2. You may modify your copy or copies of the Program or any portion
1439of it, thus forming a work based on the Program, and copy and
1440distribute such modifications or work under the terms of Section 1
1441above, provided that you also meet all of these conditions:
1442
1443    a) You must cause the modified files to carry prominent notices
1444    stating that you changed the files and the date of any change.
1445
1446    b) You must cause any work that you distribute or publish, that in
1447    whole or in part contains or is derived from the Program or any
1448    part thereof, to be licensed as a whole at no charge to all third
1449    parties under the terms of this License.
1450
1451    c) If the modified program normally reads commands interactively
1452    when run, you must cause it, when started running for such
1453    interactive use in the most ordinary way, to print or display an
1454    announcement including an appropriate copyright notice and a
1455    notice that there is no warranty (or else, saying that you provide
1456    a warranty) and that users may redistribute the program under
1457    these conditions, and telling the user how to view a copy of this
1458    License.  (Exception: if the Program itself is interactive but
1459    does not normally print such an announcement, your work based on
1460    the Program is not required to print an announcement.)
1461
1462These requirements apply to the modified work as a whole.  If
1463identifiable sections of that work are not derived from the Program,
1464and can be reasonably considered independent and separate works in
1465themselves, then this License, and its terms, do not apply to those
1466sections when you distribute them as separate works.  But when you
1467distribute the same sections as part of a whole which is a work based
1468on the Program, the distribution of the whole must be on the terms of
1469this License, whose permissions for other licensees extend to the
1470entire whole, and thus to each and every part regardless of who wrote it.
1471
1472Thus, it is not the intent of this section to claim rights or contest
1473your rights to work written entirely by you; rather, the intent is to
1474exercise the right to control the distribution of derivative or
1475collective works based on the Program.
1476
1477In addition, mere aggregation of another work not based on the Program
1478with the Program (or with a work based on the Program) on a volume of
1479a storage or distribution medium does not bring the other work under
1480the scope of this License.
1481
1482  3. You may copy and distribute the Program (or a work based on it,
1483under Section 2) in object code or executable form under the terms of
1484Sections 1 and 2 above provided that you also do one of the following:
1485
1486    a) Accompany it with the complete corresponding machine-readable
1487    source code, which must be distributed under the terms of Sections
1488    1 and 2 above on a medium customarily used for software interchange; or,
1489
1490    b) Accompany it with a written offer, valid for at least three
1491    years, to give any third party, for a charge no more than your
1492    cost of physically performing source distribution, a complete
1493    machine-readable copy of the corresponding source code, to be
1494    distributed under the terms of Sections 1 and 2 above on a medium
1495    customarily used for software interchange; or,
1496
1497    c) Accompany it with the information you received as to the offer
1498    to distribute corresponding source code.  (This alternative is
1499    allowed only for noncommercial distribution and only if you
1500    received the program in object code or executable form with such
1501    an offer, in accord with Subsection b above.)
1502
1503The source code for a work means the preferred form of the work for
1504making modifications to it.  For an executable work, complete source
1505code means all the source code for all modules it contains, plus any
1506associated interface definition files, plus the scripts used to
1507control compilation and installation of the executable.  However, as a
1508special exception, the source code distributed need not include
1509anything that is normally distributed (in either source or binary
1510form) with the major components (compiler, kernel, and so on) of the
1511operating system on which the executable runs, unless that component
1512itself accompanies the executable.
1513
1514If distribution of executable or object code is made by offering
1515access to copy from a designated place, then offering equivalent
1516access to copy the source code from the same place counts as
1517distribution of the source code, even though third parties are not
1518compelled to copy the source along with the object code.
1519
1520  4. You may not copy, modify, sublicense, or distribute the Program
1521except as expressly provided under this License.  Any attempt
1522otherwise to copy, modify, sublicense or distribute the Program is
1523void, and will automatically terminate your rights under this License.
1524However, parties who have received copies, or rights, from you under
1525this License will not have their licenses terminated so long as such
1526parties remain in full compliance.
1527
1528  5. You are not required to accept this License, since you have not
1529signed it.  However, nothing else grants you permission to modify or
1530distribute the Program or its derivative works.  These actions are
1531prohibited by law if you do not accept this License.  Therefore, by
1532modifying or distributing the Program (or any work based on the
1533Program), you indicate your acceptance of this License to do so, and
1534all its terms and conditions for copying, distributing or modifying
1535the Program or works based on it.
1536
1537  6. Each time you redistribute the Program (or any work based on the
1538Program), the recipient automatically receives a license from the
1539original licensor to copy, distribute or modify the Program subject to
1540these terms and conditions.  You may not impose any further
1541restrictions on the recipients' exercise of the rights granted herein.
1542You are not responsible for enforcing compliance by third parties to
1543this License.
1544
1545  7. If, as a consequence of a court judgment or allegation of patent
1546infringement or for any other reason (not limited to patent issues),
1547conditions are imposed on you (whether by court order, agreement or
1548otherwise) that contradict the conditions of this License, they do not
1549excuse you from the conditions of this License.  If you cannot
1550distribute so as to satisfy simultaneously your obligations under this
1551License and any other pertinent obligations, then as a consequence you
1552may not distribute the Program at all.  For example, if a patent
1553license would not permit royalty-free redistribution of the Program by
1554all those who receive copies directly or indirectly through you, then
1555the only way you could satisfy both it and this License would be to
1556refrain entirely from distribution of the Program.
1557
1558If any portion of this section is held invalid or unenforceable under
1559any particular circumstance, the balance of the section is intended to
1560apply and the section as a whole is intended to apply in other
1561circumstances.
1562
1563It is not the purpose of this section to induce you to infringe any
1564patents or other property right claims or to contest validity of any
1565such claims; this section has the sole purpose of protecting the
1566integrity of the free software distribution system, which is
1567implemented by public license practices.  Many people have made
1568generous contributions to the wide range of software distributed
1569through that system in reliance on consistent application of that
1570system; it is up to the author/donor to decide if he or she is willing
1571to distribute software through any other system and a licensee cannot
1572impose that choice.
1573
1574This section is intended to make thoroughly clear what is believed to
1575be a consequence of the rest of this License.
1576
1577  8. If the distribution and/or use of the Program is restricted in
1578certain countries either by patents or by copyrighted interfaces, the
1579original copyright holder who places the Program under this License
1580may add an explicit geographical distribution limitation excluding
1581those countries, so that distribution is permitted only in or among
1582countries not thus excluded.  In such case, this License incorporates
1583the limitation as if written in the body of this License.
1584
1585  9. The Free Software Foundation may publish revised and/or new versions
1586of the General Public License from time to time.  Such new versions will
1587be similar in spirit to the present version, but may differ in detail to
1588address new problems or concerns.
1589
1590Each version is given a distinguishing version number.  If the Program
1591specifies a version number of this License which applies to it and "any
1592later version", you have the option of following the terms and conditions
1593either of that version or of any later version published by the Free
1594Software Foundation.  If the Program does not specify a version number of
1595this License, you may choose any version ever published by the Free Software
1596Foundation.
1597
1598  10. If you wish to incorporate parts of the Program into other free
1599programs whose distribution conditions are different, write to the author
1600to ask for permission.  For software which is copyrighted by the Free
1601Software Foundation, write to the Free Software Foundation; we sometimes
1602make exceptions for this.  Our decision will be guided by the two goals
1603of preserving the free status of all derivatives of our free software and
1604of promoting the sharing and reuse of software generally.
1605
1606			    NO WARRANTY
1607
1608  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
1609FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
1610OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
1611PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
1612OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1613MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
1614TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
1615PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
1616REPAIR OR CORRECTION.
1617
1618  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
1619WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
1620REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
1621INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
1622OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
1623TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
1624YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
1625PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
1626POSSIBILITY OF SUCH DAMAGES.
1627
1628		     END OF TERMS AND CONDITIONS
1629
1630	    How to Apply These Terms to Your New Programs
1631
1632  If you develop a new program, and you want it to be of the greatest
1633possible use to the public, the best way to achieve this is to make it
1634free software which everyone can redistribute and change under these terms.
1635
1636  To do so, attach the following notices to the program.  It is safest
1637to attach them to the start of each source file to most effectively
1638convey the exclusion of warranty; and each file should have at least
1639the "copyright" line and a pointer to where the full notice is found.
1640
1641    <one line to give the program's name and a brief idea of what it does.>
1642    Copyright (C) <year>  <name of author>
1643
1644    This program is free software; you can redistribute it and/or modify
1645    it under the terms of the GNU General Public License as published by
1646    the Free Software Foundation; either version 2 of the License, or
1647    (at your option) any later version.
1648
1649    This program is distributed in the hope that it will be useful,
1650    but WITHOUT ANY WARRANTY; without even the implied warranty of
1651    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
1652    GNU General Public License for more details.
1653
1654    You should have received a copy of the GNU General Public License
1655    along with this program; if not, write to the Free Software
1656    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
1657
1658
1659Also add information on how to contact you by electronic and paper mail.
1660
1661If the program is interactive, make it output a short notice like this
1662when it starts in an interactive mode:
1663
1664    Gnomovision version 69, Copyright (C) year name of author
1665    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
1666    This is free software, and you are welcome to redistribute it
1667    under certain conditions; type `show c' for details.
1668
1669The hypothetical commands `show w' and `show c' should show the appropriate
1670parts of the General Public License.  Of course, the commands you use may
1671be called something other than `show w' and `show c'; they could even be
1672mouse-clicks or menu items--whatever suits your program.
1673
1674You should also get your employer (if you work as a programmer) or your
1675school, if any, to sign a "copyright disclaimer" for the program, if
1676necessary.  Here is a sample; alter the names:
1677
1678  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
1679  `Gnomovision' (which makes passes at compilers) written by James Hacker.
1680
1681  <signature of Ty Coon>, 1 April 1989
1682  Ty Coon, President of Vice
1683
1684This General Public License does not permit incorporating your program into
1685proprietary programs.  If your program is a subroutine library, you may
1686consider it more useful to permit linking proprietary applications with the
1687library.  If this is what you want to do, use the GNU Library General
1688Public License instead of this License.
1689All files are licensed under the FreeBSD license, excepet for thid party
1690components, which are subject to their respective licenses as specified in
1691their source files.
1692
1693                          FreeBSD License
1694
1695Copyright 2011 Tresys Technology, LLC. All rights reserved.
1696
1697Redistribution and use in source and binary forms, with or without
1698modification, are permitted provided that the following conditions are met:
1699
1700   1. Redistributions of source code must retain the above copyright notice,
1701      this list of conditions and the following disclaimer.
1702
1703   2. Redistributions in binary form must reproduce the above copyright notice,
1704      this list of conditions and the following disclaimer in the documentation
1705      and/or other materials provided with the distribution.
1706
1707THIS SOFTWARE IS PROVIDED BY TRESYS TECHNOLOGY, LLC ``AS IS'' AND ANY EXPRESS
1708OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1709MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
1710EVENT SHALL TRESYS TECHNOLOGY, LLC OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
1711INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
1712BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1713DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1714LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
1715OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
1716ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1717
1718The views and conclusions contained in the software and documentation are those
1719of the authors and should not be interpreted as representing official policies,
1720either expressed or implied, of Tresys Technology, LLC.
1721		    GNU GENERAL PUBLIC LICENSE
1722		       Version 2, June 1991
1723
1724 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
1725                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
1726 Everyone is permitted to copy and distribute verbatim copies
1727 of this license document, but changing it is not allowed.
1728
1729			    Preamble
1730
1731  The licenses for most software are designed to take away your
1732freedom to share and change it.  By contrast, the GNU General Public
1733License is intended to guarantee your freedom to share and change free
1734software--to make sure the software is free for all its users.  This
1735General Public License applies to most of the Free Software
1736Foundation's software and to any other program whose authors commit to
1737using it.  (Some other Free Software Foundation software is covered by
1738the GNU Library General Public License instead.)  You can apply it to
1739your programs, too.
1740
1741  When we speak of free software, we are referring to freedom, not
1742price.  Our General Public Licenses are designed to make sure that you
1743have the freedom to distribute copies of free software (and charge for
1744this service if you wish), that you receive source code or can get it
1745if you want it, that you can change the software or use pieces of it
1746in new free programs; and that you know you can do these things.
1747
1748  To protect your rights, we need to make restrictions that forbid
1749anyone to deny you these rights or to ask you to surrender the rights.
1750These restrictions translate to certain responsibilities for you if you
1751distribute copies of the software, or if you modify it.
1752
1753  For example, if you distribute copies of such a program, whether
1754gratis or for a fee, you must give the recipients all the rights that
1755you have.  You must make sure that they, too, receive or can get the
1756source code.  And you must show them these terms so they know their
1757rights.
1758
1759  We protect your rights with two steps: (1) copyright the software, and
1760(2) offer you this license which gives you legal permission to copy,
1761distribute and/or modify the software.
1762
1763  Also, for each author's protection and ours, we want to make certain
1764that everyone understands that there is no warranty for this free
1765software.  If the software is modified by someone else and passed on, we
1766want its recipients to know that what they have is not the original, so
1767that any problems introduced by others will not reflect on the original
1768authors' reputations.
1769
1770  Finally, any free program is threatened constantly by software
1771patents.  We wish to avoid the danger that redistributors of a free
1772program will individually obtain patent licenses, in effect making the
1773program proprietary.  To prevent this, we have made it clear that any
1774patent must be licensed for everyone's free use or not licensed at all.
1775
1776  The precise terms and conditions for copying, distribution and
1777modification follow.
1778
1779		    GNU GENERAL PUBLIC LICENSE
1780   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
1781
1782  0. This License applies to any program or other work which contains
1783a notice placed by the copyright holder saying it may be distributed
1784under the terms of this General Public License.  The "Program", below,
1785refers to any such program or work, and a "work based on the Program"
1786means either the Program or any derivative work under copyright law:
1787that is to say, a work containing the Program or a portion of it,
1788either verbatim or with modifications and/or translated into another
1789language.  (Hereinafter, translation is included without limitation in
1790the term "modification".)  Each licensee is addressed as "you".
1791
1792Activities other than copying, distribution and modification are not
1793covered by this License; they are outside its scope.  The act of
1794running the Program is not restricted, and the output from the Program
1795is covered only if its contents constitute a work based on the
1796Program (independent of having been made by running the Program).
1797Whether that is true depends on what the Program does.
1798
1799  1. You may copy and distribute verbatim copies of the Program's
1800source code as you receive it, in any medium, provided that you
1801conspicuously and appropriately publish on each copy an appropriate
1802copyright notice and disclaimer of warranty; keep intact all the
1803notices that refer to this License and to the absence of any warranty;
1804and give any other recipients of the Program a copy of this License
1805along with the Program.
1806
1807You may charge a fee for the physical act of transferring a copy, and
1808you may at your option offer warranty protection in exchange for a fee.
1809
1810  2. You may modify your copy or copies of the Program or any portion
1811of it, thus forming a work based on the Program, and copy and
1812distribute such modifications or work under the terms of Section 1
1813above, provided that you also meet all of these conditions:
1814
1815    a) You must cause the modified files to carry prominent notices
1816    stating that you changed the files and the date of any change.
1817
1818    b) You must cause any work that you distribute or publish, that in
1819    whole or in part contains or is derived from the Program or any
1820    part thereof, to be licensed as a whole at no charge to all third
1821    parties under the terms of this License.
1822
1823    c) If the modified program normally reads commands interactively
1824    when run, you must cause it, when started running for such
1825    interactive use in the most ordinary way, to print or display an
1826    announcement including an appropriate copyright notice and a
1827    notice that there is no warranty (or else, saying that you provide
1828    a warranty) and that users may redistribute the program under
1829    these conditions, and telling the user how to view a copy of this
1830    License.  (Exception: if the Program itself is interactive but
1831    does not normally print such an announcement, your work based on
1832    the Program is not required to print an announcement.)
1833
1834These requirements apply to the modified work as a whole.  If
1835identifiable sections of that work are not derived from the Program,
1836and can be reasonably considered independent and separate works in
1837themselves, then this License, and its terms, do not apply to those
1838sections when you distribute them as separate works.  But when you
1839distribute the same sections as part of a whole which is a work based
1840on the Program, the distribution of the whole must be on the terms of
1841this License, whose permissions for other licensees extend to the
1842entire whole, and thus to each and every part regardless of who wrote it.
1843
1844Thus, it is not the intent of this section to claim rights or contest
1845your rights to work written entirely by you; rather, the intent is to
1846exercise the right to control the distribution of derivative or
1847collective works based on the Program.
1848
1849In addition, mere aggregation of another work not based on the Program
1850with the Program (or with a work based on the Program) on a volume of
1851a storage or distribution medium does not bring the other work under
1852the scope of this License.
1853
1854  3. You may copy and distribute the Program (or a work based on it,
1855under Section 2) in object code or executable form under the terms of
1856Sections 1 and 2 above provided that you also do one of the following:
1857
1858    a) Accompany it with the complete corresponding machine-readable
1859    source code, which must be distributed under the terms of Sections
1860    1 and 2 above on a medium customarily used for software interchange; or,
1861
1862    b) Accompany it with a written offer, valid for at least three
1863    years, to give any third party, for a charge no more than your
1864    cost of physically performing source distribution, a complete
1865    machine-readable copy of the corresponding source code, to be
1866    distributed under the terms of Sections 1 and 2 above on a medium
1867    customarily used for software interchange; or,
1868
1869    c) Accompany it with the information you received as to the offer
1870    to distribute corresponding source code.  (This alternative is
1871    allowed only for noncommercial distribution and only if you
1872    received the program in object code or executable form with such
1873    an offer, in accord with Subsection b above.)
1874
1875The source code for a work means the preferred form of the work for
1876making modifications to it.  For an executable work, complete source
1877code means all the source code for all modules it contains, plus any
1878associated interface definition files, plus the scripts used to
1879control compilation and installation of the executable.  However, as a
1880special exception, the source code distributed need not include
1881anything that is normally distributed (in either source or binary
1882form) with the major components (compiler, kernel, and so on) of the
1883operating system on which the executable runs, unless that component
1884itself accompanies the executable.
1885
1886If distribution of executable or object code is made by offering
1887access to copy from a designated place, then offering equivalent
1888access to copy the source code from the same place counts as
1889distribution of the source code, even though third parties are not
1890compelled to copy the source along with the object code.
1891
1892  4. You may not copy, modify, sublicense, or distribute the Program
1893except as expressly provided under this License.  Any attempt
1894otherwise to copy, modify, sublicense or distribute the Program is
1895void, and will automatically terminate your rights under this License.
1896However, parties who have received copies, or rights, from you under
1897this License will not have their licenses terminated so long as such
1898parties remain in full compliance.
1899
1900  5. You are not required to accept this License, since you have not
1901signed it.  However, nothing else grants you permission to modify or
1902distribute the Program or its derivative works.  These actions are
1903prohibited by law if you do not accept this License.  Therefore, by
1904modifying or distributing the Program (or any work based on the
1905Program), you indicate your acceptance of this License to do so, and
1906all its terms and conditions for copying, distributing or modifying
1907the Program or works based on it.
1908
1909  6. Each time you redistribute the Program (or any work based on the
1910Program), the recipient automatically receives a license from the
1911original licensor to copy, distribute or modify the Program subject to
1912these terms and conditions.  You may not impose any further
1913restrictions on the recipients' exercise of the rights granted herein.
1914You are not responsible for enforcing compliance by third parties to
1915this License.
1916
1917  7. If, as a consequence of a court judgment or allegation of patent
1918infringement or for any other reason (not limited to patent issues),
1919conditions are imposed on you (whether by court order, agreement or
1920otherwise) that contradict the conditions of this License, they do not
1921excuse you from the conditions of this License.  If you cannot
1922distribute so as to satisfy simultaneously your obligations under this
1923License and any other pertinent obligations, then as a consequence you
1924may not distribute the Program at all.  For example, if a patent
1925license would not permit royalty-free redistribution of the Program by
1926all those who receive copies directly or indirectly through you, then
1927the only way you could satisfy both it and this License would be to
1928refrain entirely from distribution of the Program.
1929
1930If any portion of this section is held invalid or unenforceable under
1931any particular circumstance, the balance of the section is intended to
1932apply and the section as a whole is intended to apply in other
1933circumstances.
1934
1935It is not the purpose of this section to induce you to infringe any
1936patents or other property right claims or to contest validity of any
1937such claims; this section has the sole purpose of protecting the
1938integrity of the free software distribution system, which is
1939implemented by public license practices.  Many people have made
1940generous contributions to the wide range of software distributed
1941through that system in reliance on consistent application of that
1942system; it is up to the author/donor to decide if he or she is willing
1943to distribute software through any other system and a licensee cannot
1944impose that choice.
1945
1946This section is intended to make thoroughly clear what is believed to
1947be a consequence of the rest of this License.
1948
1949  8. If the distribution and/or use of the Program is restricted in
1950certain countries either by patents or by copyrighted interfaces, the
1951original copyright holder who places the Program under this License
1952may add an explicit geographical distribution limitation excluding
1953those countries, so that distribution is permitted only in or among
1954countries not thus excluded.  In such case, this License incorporates
1955the limitation as if written in the body of this License.
1956
1957  9. The Free Software Foundation may publish revised and/or new versions
1958of the General Public License from time to time.  Such new versions will
1959be similar in spirit to the present version, but may differ in detail to
1960address new problems or concerns.
1961
1962Each version is given a distinguishing version number.  If the Program
1963specifies a version number of this License which applies to it and "any
1964later version", you have the option of following the terms and conditions
1965either of that version or of any later version published by the Free
1966Software Foundation.  If the Program does not specify a version number of
1967this License, you may choose any version ever published by the Free Software
1968Foundation.
1969
1970  10. If you wish to incorporate parts of the Program into other free
1971programs whose distribution conditions are different, write to the author
1972to ask for permission.  For software which is copyrighted by the Free
1973Software Foundation, write to the Free Software Foundation; we sometimes
1974make exceptions for this.  Our decision will be guided by the two goals
1975of preserving the free status of all derivatives of our free software and
1976of promoting the sharing and reuse of software generally.
1977
1978			    NO WARRANTY
1979
1980  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
1981FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
1982OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
1983PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
1984OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1985MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
1986TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
1987PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
1988REPAIR OR CORRECTION.
1989
1990  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
1991WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
1992REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
1993INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
1994OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
1995TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
1996YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
1997PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
1998POSSIBILITY OF SUCH DAMAGES.
1999
2000		     END OF TERMS AND CONDITIONS
2001
2002	    How to Apply These Terms to Your New Programs
2003
2004  If you develop a new program, and you want it to be of the greatest
2005possible use to the public, the best way to achieve this is to make it
2006free software which everyone can redistribute and change under these terms.
2007
2008  To do so, attach the following notices to the program.  It is safest
2009to attach them to the start of each source file to most effectively
2010convey the exclusion of warranty; and each file should have at least
2011the "copyright" line and a pointer to where the full notice is found.
2012
2013    <one line to give the program's name and a brief idea of what it does.>
2014    Copyright (C) <year>  <name of author>
2015
2016    This program is free software; you can redistribute it and/or modify
2017    it under the terms of the GNU General Public License as published by
2018    the Free Software Foundation; either version 2 of the License, or
2019    (at your option) any later version.
2020
2021    This program is distributed in the hope that it will be useful,
2022    but WITHOUT ANY WARRANTY; without even the implied warranty of
2023    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
2024    GNU General Public License for more details.
2025
2026    You should have received a copy of the GNU General Public License
2027    along with this program; if not, write to the Free Software
2028    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
2029
2030
2031Also add information on how to contact you by electronic and paper mail.
2032
2033If the program is interactive, make it output a short notice like this
2034when it starts in an interactive mode:
2035
2036    Gnomovision version 69, Copyright (C) year name of author
2037    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
2038    This is free software, and you are welcome to redistribute it
2039    under certain conditions; type `show c' for details.
2040
2041The hypothetical commands `show w' and `show c' should show the appropriate
2042parts of the General Public License.  Of course, the commands you use may
2043be called something other than `show w' and `show c'; they could even be
2044mouse-clicks or menu items--whatever suits your program.
2045
2046You should also get your employer (if you work as a programmer) or your
2047school, if any, to sign a "copyright disclaimer" for the program, if
2048necessary.  Here is a sample; alter the names:
2049
2050  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
2051  `Gnomovision' (which makes passes at compilers) written by James Hacker.
2052
2053  <signature of Ty Coon>, 1 April 1989
2054  Ty Coon, President of Vice
2055
2056This General Public License does not permit incorporating your program into
2057proprietary programs.  If your program is a subroutine library, you may
2058consider it more useful to permit linking proprietary applications with the
2059library.  If this is what you want to do, use the GNU Library General
2060Public License instead of this License.
2061