1
2The different parts of this distribution have two different software
3licenses that govern thier use.  Both licenses pass the common definition
4of 'open source license' as commonly defined (e.g. at http://www.opensource.org).
5The licenses, although different, are compatible with each other.
6
7The applicable licenses are:
8
9examples, man pages, documentation: Artistic License
10         A copy of this license is in COPYING.artistic
11
12source code: IBM standard example source code license (free use,
13         free distribution, free modification, disclaimer of
14         warrenty)  A copy of this license is in COPYING.src
15         The file CERTOR.script ('certificate of originality')
16         documents the provenance of this code.
17
18--------------------------------------------------------------------
19Alternately, at your choosing, you may choose to accept the source
20code and the man pages/documentation under the GPL: the GNU General
21Public License version 2, as given below.
22
23If you use this code, you must accept either the licenses above, or
24the GPL.
25--------------------------------------------------------------------
26
27
28		    GNU GENERAL PUBLIC LICENSE
29		       Version 2, June 1991
30
31 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
32     59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
33 Everyone is permitted to copy and distribute verbatim copies
34 of this license document, but changing it is not allowed.
35
36			    Preamble
37
38  The licenses for most software are designed to take away your
39freedom to share and change it.  By contrast, the GNU General Public
40License is intended to guarantee your freedom to share and change free
41software--to make sure the software is free for all its users.  This
42General Public License applies to most of the Free Software
43Foundation's software and to any other program whose authors commit to
44using it.  (Some other Free Software Foundation software is covered by
45the GNU Library General Public License instead.)  You can apply it to
46your programs, too.
47
48  When we speak of free software, we are referring to freedom, not
49price.  Our General Public Licenses are designed to make sure that you
50have the freedom to distribute copies of free software (and charge for
51this service if you wish), that you receive source code or can get it
52if you want it, that you can change the software or use pieces of it
53in new free programs; and that you know you can do these things.
54
55  To protect your rights, we need to make restrictions that forbid
56anyone to deny you these rights or to ask you to surrender the rights.
57These restrictions translate to certain responsibilities for you if you
58distribute copies of the software, or if you modify it.
59
60  For example, if you distribute copies of such a program, whether
61gratis or for a fee, you must give the recipients all the rights that
62you have.  You must make sure that they, too, receive or can get the
63source code.  And you must show them these terms so they know their
64rights.
65
66  We protect your rights with two steps: (1) copyright the software, and
67(2) offer you this license which gives you legal permission to copy,
68distribute and/or modify the software.
69
70  Also, for each author's protection and ours, we want to make certain
71that everyone understands that there is no warranty for this free
72software.  If the software is modified by someone else and passed on, we
73want its recipients to know that what they have is not the original, so
74that any problems introduced by others will not reflect on the original
75authors' reputations.
76
77  Finally, any free program is threatened constantly by software
78patents.  We wish to avoid the danger that redistributors of a free
79program will individually obtain patent licenses, in effect making the
80program proprietary.  To prevent this, we have made it clear that any
81patent must be licensed for everyone's free use or not licensed at all.
82
83  The precise terms and conditions for copying, distribution and
84modification follow.
85
86		    GNU GENERAL PUBLIC LICENSE
87   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
88
89  0. This License applies to any program or other work which contains
90a notice placed by the copyright holder saying it may be distributed
91under the terms of this General Public License.  The "Program", below,
92refers to any such program or work, and a "work based on the Program"
93means either the Program or any derivative work under copyright law:
94that is to say, a work containing the Program or a portion of it,
95either verbatim or with modifications and/or translated into another
96language.  (Hereinafter, translation is included without limitation in
97the term "modification".)  Each licensee is addressed as "you".
98
99Activities other than copying, distribution and modification are not
100covered by this License; they are outside its scope.  The act of
101running the Program is not restricted, and the output from the Program
102is covered only if its contents constitute a work based on the
103Program (independent of having been made by running the Program).
104Whether that is true depends on what the Program does.
105
106  1. You may copy and distribute verbatim copies of the Program's
107source code as you receive it, in any medium, provided that you
108conspicuously and appropriately publish on each copy an appropriate
109copyright notice and disclaimer of warranty; keep intact all the
110notices that refer to this License and to the absence of any warranty;
111and give any other recipients of the Program a copy of this License
112along with the Program.
113
114You may charge a fee for the physical act of transferring a copy, and
115you may at your option offer warranty protection in exchange for a fee.
116
117  2. You may modify your copy or copies of the Program or any portion
118of it, thus forming a work based on the Program, and copy and
119distribute such modifications or work under the terms of Section 1
120above, provided that you also meet all of these conditions:
121
122    a) You must cause the modified files to carry prominent notices
123    stating that you changed the files and the date of any change.
124
125    b) You must cause any work that you distribute or publish, that in
126    whole or in part contains or is derived from the Program or any
127    part thereof, to be licensed as a whole at no charge to all third
128    parties under the terms of this License.
129
130    c) If the modified program normally reads commands interactively
131    when run, you must cause it, when started running for such
132    interactive use in the most ordinary way, to print or display an
133    announcement including an appropriate copyright notice and a
134    notice that there is no warranty (or else, saying that you provide
135    a warranty) and that users may redistribute the program under
136    these conditions, and telling the user how to view a copy of this
137    License.  (Exception: if the Program itself is interactive but
138    does not normally print such an announcement, your work based on
139    the Program is not required to print an announcement.)
140
141These requirements apply to the modified work as a whole.  If
142identifiable sections of that work are not derived from the Program,
143and can be reasonably considered independent and separate works in
144themselves, then this License, and its terms, do not apply to those
145sections when you distribute them as separate works.  But when you
146distribute the same sections as part of a whole which is a work based
147on the Program, the distribution of the whole must be on the terms of
148this License, whose permissions for other licensees extend to the
149entire whole, and thus to each and every part regardless of who wrote it.
150
151Thus, it is not the intent of this section to claim rights or contest
152your rights to work written entirely by you; rather, the intent is to
153exercise the right to control the distribution of derivative or
154collective works based on the Program.
155
156In addition, mere aggregation of another work not based on the Program
157with the Program (or with a work based on the Program) on a volume of
158a storage or distribution medium does not bring the other work under
159the scope of this License.
160
161  3. You may copy and distribute the Program (or a work based on it,
162under Section 2) in object code or executable form under the terms of
163Sections 1 and 2 above provided that you also do one of the following:
164
165    a) Accompany it with the complete corresponding machine-readable
166    source code, which must be distributed under the terms of Sections
167    1 and 2 above on a medium customarily used for software interchange; or,
168
169    b) Accompany it with a written offer, valid for at least three
170    years, to give any third party, for a charge no more than your
171    cost of physically performing source distribution, a complete
172    machine-readable copy of the corresponding source code, to be
173    distributed under the terms of Sections 1 and 2 above on a medium
174    customarily used for software interchange; or,
175
176    c) Accompany it with the information you received as to the offer
177    to distribute corresponding source code.  (This alternative is
178    allowed only for noncommercial distribution and only if you
179    received the program in object code or executable form with such
180    an offer, in accord with Subsection b above.)
181
182The source code for a work means the preferred form of the work for
183making modifications to it.  For an executable work, complete source
184code means all the source code for all modules it contains, plus any
185associated interface definition files, plus the scripts used to
186control compilation and installation of the executable.  However, as a
187special exception, the source code distributed need not include
188anything that is normally distributed (in either source or binary
189form) with the major components (compiler, kernel, and so on) of the
190operating system on which the executable runs, unless that component
191itself accompanies the executable.
192
193If distribution of executable or object code is made by offering
194access to copy from a designated place, then offering equivalent
195access to copy the source code from the same place counts as
196distribution of the source code, even though third parties are not
197compelled to copy the source along with the object code.
198
199  4. You may not copy, modify, sublicense, or distribute the Program
200except as expressly provided under this License.  Any attempt
201otherwise to copy, modify, sublicense or distribute the Program is
202void, and will automatically terminate your rights under this License.
203However, parties who have received copies, or rights, from you under
204this License will not have their licenses terminated so long as such
205parties remain in full compliance.
206
207  5. You are not required to accept this License, since you have not
208signed it.  However, nothing else grants you permission to modify or
209distribute the Program or its derivative works.  These actions are
210prohibited by law if you do not accept this License.  Therefore, by
211modifying or distributing the Program (or any work based on the
212Program), you indicate your acceptance of this License to do so, and
213all its terms and conditions for copying, distributing or modifying
214the Program or works based on it.
215
216  6. Each time you redistribute the Program (or any work based on the
217Program), the recipient automatically receives a license from the
218original licensor to copy, distribute or modify the Program subject to
219these terms and conditions.  You may not impose any further
220restrictions on the recipients' exercise of the rights granted herein.
221You are not responsible for enforcing compliance by third parties to
222this License.
223
224  7. If, as a consequence of a court judgment or allegation of patent
225infringement or for any other reason (not limited to patent issues),
226conditions are imposed on you (whether by court order, agreement or
227otherwise) that contradict the conditions of this License, they do not
228excuse you from the conditions of this License.  If you cannot
229distribute so as to satisfy simultaneously your obligations under this
230License and any other pertinent obligations, then as a consequence you
231may not distribute the Program at all.  For example, if a patent
232license would not permit royalty-free redistribution of the Program by
233all those who receive copies directly or indirectly through you, then
234the only way you could satisfy both it and this License would be to
235refrain entirely from distribution of the Program.
236
237If any portion of this section is held invalid or unenforceable under
238any particular circumstance, the balance of the section is intended to
239apply and the section as a whole is intended to apply in other
240circumstances.
241
242It is not the purpose of this section to induce you to infringe any
243patents or other property right claims or to contest validity of any
244such claims; this section has the sole purpose of protecting the
245integrity of the free software distribution system, which is
246implemented by public license practices.  Many people have made
247generous contributions to the wide range of software distributed
248through that system in reliance on consistent application of that
249system; it is up to the author/donor to decide if he or she is willing
250to distribute software through any other system and a licensee cannot
251impose that choice.
252
253This section is intended to make thoroughly clear what is believed to
254be a consequence of the rest of this License.
255
256  8. If the distribution and/or use of the Program is restricted in
257certain countries either by patents or by copyrighted interfaces, the
258original copyright holder who places the Program under this License
259may add an explicit geographical distribution limitation excluding
260those countries, so that distribution is permitted only in or among
261countries not thus excluded.  In such case, this License incorporates
262the limitation as if written in the body of this License.
263
264  9. The Free Software Foundation may publish revised and/or new versions
265of the General Public License from time to time.  Such new versions will
266be similar in spirit to the present version, but may differ in detail to
267address new problems or concerns.
268
269Each version is given a distinguishing version number.  If the Program
270specifies a version number of this License which applies to it and "any
271later version", you have the option of following the terms and conditions
272either of that version or of any later version published by the Free
273Software Foundation.  If the Program does not specify a version number of
274this License, you may choose any version ever published by the Free Software
275Foundation.
276
277  10. If you wish to incorporate parts of the Program into other free
278programs whose distribution conditions are different, write to the author
279to ask for permission.  For software which is copyrighted by the Free
280Software Foundation, write to the Free Software Foundation; we sometimes
281make exceptions for this.  Our decision will be guided by the two goals
282of preserving the free status of all derivatives of our free software and
283of promoting the sharing and reuse of software generally.
284
285			    NO WARRANTY
286
287  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
288FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
289OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
290PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
291OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
292MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
293TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
294PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
295REPAIR OR CORRECTION.
296
297  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
298WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
299REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
300INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
301OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
302TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
303YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
304PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
305POSSIBILITY OF SUCH DAMAGES.
306
307		     END OF TERMS AND CONDITIONS
308
309	    How to Apply These Terms to Your New Programs
310
311  If you develop a new program, and you want it to be of the greatest
312possible use to the public, the best way to achieve this is to make it
313free software which everyone can redistribute and change under these terms.
314
315  To do so, attach the following notices to the program.  It is safest
316to attach them to the start of each source file to most effectively
317convey the exclusion of warranty; and each file should have at least
318the "copyright" line and a pointer to where the full notice is found.
319
320    <one line to give the program's name and a brief idea of what it does.>
321    Copyright (C) <year>  <name of author>
322
323    This program is free software; you can redistribute it and/or modify
324    it under the terms of the GNU General Public License as published by
325    the Free Software Foundation; either version 2 of the License, or
326    (at your option) any later version.
327
328    This program is distributed in the hope that it will be useful,
329    but WITHOUT ANY WARRANTY; without even the implied warranty of
330    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
331    GNU General Public License for more details.
332
333    You should have received a copy of the GNU General Public License
334    along with this program; if not, write to the Free Software
335    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
336
337
338Also add information on how to contact you by electronic and paper mail.
339
340If the program is interactive, make it output a short notice like this
341when it starts in an interactive mode:
342
343    Gnomovision version 69, Copyright (C) year  name of author
344    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
345    This is free software, and you are welcome to redistribute it
346    under certain conditions; type `show c' for details.
347
348The hypothetical commands `show w' and `show c' should show the appropriate
349parts of the General Public License.  Of course, the commands you use may
350be called something other than `show w' and `show c'; they could even be
351mouse-clicks or menu items--whatever suits your program.
352
353You should also get your employer (if you work as a programmer) or your
354school, if any, to sign a "copyright disclaimer" for the program, if
355necessary.  Here is a sample; alter the names:
356
357  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
358  `Gnomovision' (which makes passes at compilers) written by James Hacker.
359
360  <signature of Ty Coon>, 1 April 1989
361  Ty Coon, President of Vice
362
363This General Public License does not permit incorporating your program into
364proprietary programs.  If your program is a subroutine library, you may
365consider it more useful to permit linking proprietary applications with the
366library.  If this is what you want to do, use the GNU Library General
367Public License instead of this License.
368
369