LICENSE
author Josh Pelkey <jpelkey@gatech.edu>
Wed, 11 Aug 2010 11:37:37 -0400
changeset 6553 fb5ad9c7755a
permissions -rw-r--r--
update release notes and fix doxygen warnings
tomh@421
     1
		    GNU GENERAL PUBLIC LICENSE
tomh@421
     2
		       Version 2, June 1991
tomh@421
     3
tomh@421
     4
 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
tomh@421
     5
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
tomh@421
     6
 Everyone is permitted to copy and distribute verbatim copies
tomh@421
     7
 of this license document, but changing it is not allowed.
tomh@421
     8
tomh@421
     9
			    Preamble
tomh@421
    10
tomh@421
    11
  The licenses for most software are designed to take away your
tomh@421
    12
freedom to share and change it.  By contrast, the GNU General Public
tomh@421
    13
License is intended to guarantee your freedom to share and change free
tomh@421
    14
software--to make sure the software is free for all its users.  This
tomh@421
    15
General Public License applies to most of the Free Software
tomh@421
    16
Foundation's software and to any other program whose authors commit to
tomh@421
    17
using it.  (Some other Free Software Foundation software is covered by
tomh@421
    18
the GNU Lesser General Public License instead.)  You can apply it to
tomh@421
    19
your programs, too.
tomh@421
    20
tomh@421
    21
  When we speak of free software, we are referring to freedom, not
tomh@421
    22
price.  Our General Public Licenses are designed to make sure that you
tomh@421
    23
have the freedom to distribute copies of free software (and charge for
tomh@421
    24
this service if you wish), that you receive source code or can get it
tomh@421
    25
if you want it, that you can change the software or use pieces of it
tomh@421
    26
in new free programs; and that you know you can do these things.
tomh@421
    27
tomh@421
    28
  To protect your rights, we need to make restrictions that forbid
tomh@421
    29
anyone to deny you these rights or to ask you to surrender the rights.
tomh@421
    30
These restrictions translate to certain responsibilities for you if you
tomh@421
    31
distribute copies of the software, or if you modify it.
tomh@421
    32
tomh@421
    33
  For example, if you distribute copies of such a program, whether
tomh@421
    34
gratis or for a fee, you must give the recipients all the rights that
tomh@421
    35
you have.  You must make sure that they, too, receive or can get the
tomh@421
    36
source code.  And you must show them these terms so they know their
tomh@421
    37
rights.
tomh@421
    38
tomh@421
    39
  We protect your rights with two steps: (1) copyright the software, and
tomh@421
    40
(2) offer you this license which gives you legal permission to copy,
tomh@421
    41
distribute and/or modify the software.
tomh@421
    42
tomh@421
    43
  Also, for each author's protection and ours, we want to make certain
tomh@421
    44
that everyone understands that there is no warranty for this free
tomh@421
    45
software.  If the software is modified by someone else and passed on, we
tomh@421
    46
want its recipients to know that what they have is not the original, so
tomh@421
    47
that any problems introduced by others will not reflect on the original
tomh@421
    48
authors' reputations.
tomh@421
    49
tomh@421
    50
  Finally, any free program is threatened constantly by software
tomh@421
    51
patents.  We wish to avoid the danger that redistributors of a free
tomh@421
    52
program will individually obtain patent licenses, in effect making the
tomh@421
    53
program proprietary.  To prevent this, we have made it clear that any
tomh@421
    54
patent must be licensed for everyone's free use or not licensed at all.
tomh@421
    55
tomh@421
    56
  The precise terms and conditions for copying, distribution and
tomh@421
    57
modification follow.
tomh@421
    58
tomh@421
    59
		    GNU GENERAL PUBLIC LICENSE
tomh@421
    60
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
tomh@421
    61
tomh@421
    62
  0. This License applies to any program or other work which contains
tomh@421
    63
a notice placed by the copyright holder saying it may be distributed
tomh@421
    64
under the terms of this General Public License.  The "Program", below,
tomh@421
    65
refers to any such program or work, and a "work based on the Program"
tomh@421
    66
means either the Program or any derivative work under copyright law:
tomh@421
    67
that is to say, a work containing the Program or a portion of it,
tomh@421
    68
either verbatim or with modifications and/or translated into another
tomh@421
    69
language.  (Hereinafter, translation is included without limitation in
tomh@421
    70
the term "modification".)  Each licensee is addressed as "you".
tomh@421
    71
tomh@421
    72
Activities other than copying, distribution and modification are not
tomh@421
    73
covered by this License; they are outside its scope.  The act of
tomh@421
    74
running the Program is not restricted, and the output from the Program
tomh@421
    75
is covered only if its contents constitute a work based on the
tomh@421
    76
Program (independent of having been made by running the Program).
tomh@421
    77
Whether that is true depends on what the Program does.
tomh@421
    78
tomh@421
    79
  1. You may copy and distribute verbatim copies of the Program's
tomh@421
    80
source code as you receive it, in any medium, provided that you
tomh@421
    81
conspicuously and appropriately publish on each copy an appropriate
tomh@421
    82
copyright notice and disclaimer of warranty; keep intact all the
tomh@421
    83
notices that refer to this License and to the absence of any warranty;
tomh@421
    84
and give any other recipients of the Program a copy of this License
tomh@421
    85
along with the Program.
tomh@421
    86
tomh@421
    87
You may charge a fee for the physical act of transferring a copy, and
tomh@421
    88
you may at your option offer warranty protection in exchange for a fee.
tomh@421
    89
tomh@421
    90
  2. You may modify your copy or copies of the Program or any portion
tomh@421
    91
of it, thus forming a work based on the Program, and copy and
tomh@421
    92
distribute such modifications or work under the terms of Section 1
tomh@421
    93
above, provided that you also meet all of these conditions:
tomh@421
    94
tomh@421
    95
    a) You must cause the modified files to carry prominent notices
tomh@421
    96
    stating that you changed the files and the date of any change.
tomh@421
    97
tomh@421
    98
    b) You must cause any work that you distribute or publish, that in
tomh@421
    99
    whole or in part contains or is derived from the Program or any
tomh@421
   100
    part thereof, to be licensed as a whole at no charge to all third
tomh@421
   101
    parties under the terms of this License.
tomh@421
   102
tomh@421
   103
    c) If the modified program normally reads commands interactively
tomh@421
   104
    when run, you must cause it, when started running for such
tomh@421
   105
    interactive use in the most ordinary way, to print or display an
tomh@421
   106
    announcement including an appropriate copyright notice and a
tomh@421
   107
    notice that there is no warranty (or else, saying that you provide
tomh@421
   108
    a warranty) and that users may redistribute the program under
tomh@421
   109
    these conditions, and telling the user how to view a copy of this
tomh@421
   110
    License.  (Exception: if the Program itself is interactive but
tomh@421
   111
    does not normally print such an announcement, your work based on
tomh@421
   112
    the Program is not required to print an announcement.)
tomh@421
   113
tomh@421
   114
These requirements apply to the modified work as a whole.  If
tomh@421
   115
identifiable sections of that work are not derived from the Program,
tomh@421
   116
and can be reasonably considered independent and separate works in
tomh@421
   117
themselves, then this License, and its terms, do not apply to those
tomh@421
   118
sections when you distribute them as separate works.  But when you
tomh@421
   119
distribute the same sections as part of a whole which is a work based
tomh@421
   120
on the Program, the distribution of the whole must be on the terms of
tomh@421
   121
this License, whose permissions for other licensees extend to the
tomh@421
   122
entire whole, and thus to each and every part regardless of who wrote it.
tomh@421
   123
tomh@421
   124
Thus, it is not the intent of this section to claim rights or contest
tomh@421
   125
your rights to work written entirely by you; rather, the intent is to
tomh@421
   126
exercise the right to control the distribution of derivative or
tomh@421
   127
collective works based on the Program.
tomh@421
   128
tomh@421
   129
In addition, mere aggregation of another work not based on the Program
tomh@421
   130
with the Program (or with a work based on the Program) on a volume of
tomh@421
   131
a storage or distribution medium does not bring the other work under
tomh@421
   132
the scope of this License.
tomh@421
   133
tomh@421
   134
  3. You may copy and distribute the Program (or a work based on it,
tomh@421
   135
under Section 2) in object code or executable form under the terms of
tomh@421
   136
Sections 1 and 2 above provided that you also do one of the following:
tomh@421
   137
tomh@421
   138
    a) Accompany it with the complete corresponding machine-readable
tomh@421
   139
    source code, which must be distributed under the terms of Sections
tomh@421
   140
    1 and 2 above on a medium customarily used for software interchange; or,
tomh@421
   141
tomh@421
   142
    b) Accompany it with a written offer, valid for at least three
tomh@421
   143
    years, to give any third party, for a charge no more than your
tomh@421
   144
    cost of physically performing source distribution, a complete
tomh@421
   145
    machine-readable copy of the corresponding source code, to be
tomh@421
   146
    distributed under the terms of Sections 1 and 2 above on a medium
tomh@421
   147
    customarily used for software interchange; or,
tomh@421
   148
tomh@421
   149
    c) Accompany it with the information you received as to the offer
tomh@421
   150
    to distribute corresponding source code.  (This alternative is
tomh@421
   151
    allowed only for noncommercial distribution and only if you
tomh@421
   152
    received the program in object code or executable form with such
tomh@421
   153
    an offer, in accord with Subsection b above.)
tomh@421
   154
tomh@421
   155
The source code for a work means the preferred form of the work for
tomh@421
   156
making modifications to it.  For an executable work, complete source
tomh@421
   157
code means all the source code for all modules it contains, plus any
tomh@421
   158
associated interface definition files, plus the scripts used to
tomh@421
   159
control compilation and installation of the executable.  However, as a
tomh@421
   160
special exception, the source code distributed need not include
tomh@421
   161
anything that is normally distributed (in either source or binary
tomh@421
   162
form) with the major components (compiler, kernel, and so on) of the
tomh@421
   163
operating system on which the executable runs, unless that component
tomh@421
   164
itself accompanies the executable.
tomh@421
   165
tomh@421
   166
If distribution of executable or object code is made by offering
tomh@421
   167
access to copy from a designated place, then offering equivalent
tomh@421
   168
access to copy the source code from the same place counts as
tomh@421
   169
distribution of the source code, even though third parties are not
tomh@421
   170
compelled to copy the source along with the object code.
tomh@421
   171
tomh@421
   172
  4. You may not copy, modify, sublicense, or distribute the Program
tomh@421
   173
except as expressly provided under this License.  Any attempt
tomh@421
   174
otherwise to copy, modify, sublicense or distribute the Program is
tomh@421
   175
void, and will automatically terminate your rights under this License.
tomh@421
   176
However, parties who have received copies, or rights, from you under
tomh@421
   177
this License will not have their licenses terminated so long as such
tomh@421
   178
parties remain in full compliance.
tomh@421
   179
tomh@421
   180
  5. You are not required to accept this License, since you have not
tomh@421
   181
signed it.  However, nothing else grants you permission to modify or
tomh@421
   182
distribute the Program or its derivative works.  These actions are
tomh@421
   183
prohibited by law if you do not accept this License.  Therefore, by
tomh@421
   184
modifying or distributing the Program (or any work based on the
tomh@421
   185
Program), you indicate your acceptance of this License to do so, and
tomh@421
   186
all its terms and conditions for copying, distributing or modifying
tomh@421
   187
the Program or works based on it.
tomh@421
   188
tomh@421
   189
  6. Each time you redistribute the Program (or any work based on the
tomh@421
   190
Program), the recipient automatically receives a license from the
tomh@421
   191
original licensor to copy, distribute or modify the Program subject to
tomh@421
   192
these terms and conditions.  You may not impose any further
tomh@421
   193
restrictions on the recipients' exercise of the rights granted herein.
tomh@421
   194
You are not responsible for enforcing compliance by third parties to
tomh@421
   195
this License.
tomh@421
   196
tomh@421
   197
  7. If, as a consequence of a court judgment or allegation of patent
tomh@421
   198
infringement or for any other reason (not limited to patent issues),
tomh@421
   199
conditions are imposed on you (whether by court order, agreement or
tomh@421
   200
otherwise) that contradict the conditions of this License, they do not
tomh@421
   201
excuse you from the conditions of this License.  If you cannot
tomh@421
   202
distribute so as to satisfy simultaneously your obligations under this
tomh@421
   203
License and any other pertinent obligations, then as a consequence you
tomh@421
   204
may not distribute the Program at all.  For example, if a patent
tomh@421
   205
license would not permit royalty-free redistribution of the Program by
tomh@421
   206
all those who receive copies directly or indirectly through you, then
tomh@421
   207
the only way you could satisfy both it and this License would be to
tomh@421
   208
refrain entirely from distribution of the Program.
tomh@421
   209
tomh@421
   210
If any portion of this section is held invalid or unenforceable under
tomh@421
   211
any particular circumstance, the balance of the section is intended to
tomh@421
   212
apply and the section as a whole is intended to apply in other
tomh@421
   213
circumstances.
tomh@421
   214
tomh@421
   215
It is not the purpose of this section to induce you to infringe any
tomh@421
   216
patents or other property right claims or to contest validity of any
tomh@421
   217
such claims; this section has the sole purpose of protecting the
tomh@421
   218
integrity of the free software distribution system, which is
tomh@421
   219
implemented by public license practices.  Many people have made
tomh@421
   220
generous contributions to the wide range of software distributed
tomh@421
   221
through that system in reliance on consistent application of that
tomh@421
   222
system; it is up to the author/donor to decide if he or she is willing
tomh@421
   223
to distribute software through any other system and a licensee cannot
tomh@421
   224
impose that choice.
tomh@421
   225
tomh@421
   226
This section is intended to make thoroughly clear what is believed to
tomh@421
   227
be a consequence of the rest of this License.
tomh@421
   228
tomh@421
   229
  8. If the distribution and/or use of the Program is restricted in
tomh@421
   230
certain countries either by patents or by copyrighted interfaces, the
tomh@421
   231
original copyright holder who places the Program under this License
tomh@421
   232
may add an explicit geographical distribution limitation excluding
tomh@421
   233
those countries, so that distribution is permitted only in or among
tomh@421
   234
countries not thus excluded.  In such case, this License incorporates
tomh@421
   235
the limitation as if written in the body of this License.
tomh@421
   236
tomh@421
   237
  9. The Free Software Foundation may publish revised and/or new versions
tomh@421
   238
of the General Public License from time to time.  Such new versions will
tomh@421
   239
be similar in spirit to the present version, but may differ in detail to
tomh@421
   240
address new problems or concerns.
tomh@421
   241
tomh@421
   242
Each version is given a distinguishing version number.  If the Program
tomh@421
   243
specifies a version number of this License which applies to it and "any
tomh@421
   244
later version", you have the option of following the terms and conditions
tomh@421
   245
either of that version or of any later version published by the Free
tomh@421
   246
Software Foundation.  If the Program does not specify a version number of
tomh@421
   247
this License, you may choose any version ever published by the Free Software
tomh@421
   248
Foundation.
tomh@421
   249
tomh@421
   250
  10. If you wish to incorporate parts of the Program into other free
tomh@421
   251
programs whose distribution conditions are different, write to the author
tomh@421
   252
to ask for permission.  For software which is copyrighted by the Free
tomh@421
   253
Software Foundation, write to the Free Software Foundation; we sometimes
tomh@421
   254
make exceptions for this.  Our decision will be guided by the two goals
tomh@421
   255
of preserving the free status of all derivatives of our free software and
tomh@421
   256
of promoting the sharing and reuse of software generally.
tomh@421
   257
tomh@421
   258
			    NO WARRANTY
tomh@421
   259
tomh@421
   260
  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
tomh@421
   261
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
tomh@421
   262
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
tomh@421
   263
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
tomh@421
   264
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
tomh@421
   265
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
tomh@421
   266
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
tomh@421
   267
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
tomh@421
   268
REPAIR OR CORRECTION.
tomh@421
   269
tomh@421
   270
  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
tomh@421
   271
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
tomh@421
   272
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
tomh@421
   273
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
tomh@421
   274
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
tomh@421
   275
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
tomh@421
   276
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
tomh@421
   277
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
tomh@421
   278
POSSIBILITY OF SUCH DAMAGES.
tomh@421
   279
tomh@421
   280
		     END OF TERMS AND CONDITIONS
tomh@421
   281
tomh@421
   282
	    How to Apply These Terms to Your New Programs
tomh@421
   283
tomh@421
   284
  If you develop a new program, and you want it to be of the greatest
tomh@421
   285
possible use to the public, the best way to achieve this is to make it
tomh@421
   286
free software which everyone can redistribute and change under these terms.
tomh@421
   287
tomh@421
   288
  To do so, attach the following notices to the program.  It is safest
tomh@421
   289
to attach them to the start of each source file to most effectively
tomh@421
   290
convey the exclusion of warranty; and each file should have at least
tomh@421
   291
the "copyright" line and a pointer to where the full notice is found.
tomh@421
   292
tomh@421
   293
    <one line to give the program's name and a brief idea of what it does.>
tomh@421
   294
    Copyright (C) <year>  <name of author>
tomh@421
   295
tomh@421
   296
    This program is free software; you can redistribute it and/or modify
tomh@421
   297
    it under the terms of the GNU General Public License as published by
tomh@421
   298
    the Free Software Foundation; either version 2 of the License, or
tomh@421
   299
    (at your option) any later version.
tomh@421
   300
tomh@421
   301
    This program is distributed in the hope that it will be useful,
tomh@421
   302
    but WITHOUT ANY WARRANTY; without even the implied warranty of
tomh@421
   303
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tomh@421
   304
    GNU General Public License for more details.
tomh@421
   305
tomh@421
   306
    You should have received a copy of the GNU General Public License along
tomh@421
   307
    with this program; if not, write to the Free Software Foundation, Inc.,
tomh@421
   308
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
tomh@421
   309
tomh@421
   310
Also add information on how to contact you by electronic and paper mail.
tomh@421
   311
tomh@421
   312
If the program is interactive, make it output a short notice like this
tomh@421
   313
when it starts in an interactive mode:
tomh@421
   314
tomh@421
   315
    Gnomovision version 69, Copyright (C) year name of author
tomh@421
   316
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
tomh@421
   317
    This is free software, and you are welcome to redistribute it
tomh@421
   318
    under certain conditions; type `show c' for details.
tomh@421
   319
tomh@421
   320
The hypothetical commands `show w' and `show c' should show the appropriate
tomh@421
   321
parts of the General Public License.  Of course, the commands you use may
tomh@421
   322
be called something other than `show w' and `show c'; they could even be
tomh@421
   323
mouse-clicks or menu items--whatever suits your program.
tomh@421
   324
tomh@421
   325
You should also get your employer (if you work as a programmer) or your
tomh@421
   326
school, if any, to sign a "copyright disclaimer" for the program, if
tomh@421
   327
necessary.  Here is a sample; alter the names:
tomh@421
   328
tomh@421
   329
  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
tomh@421
   330
  `Gnomovision' (which makes passes at compilers) written by James Hacker.
tomh@421
   331
tomh@421
   332
  <signature of Ty Coon>, 1 April 1989
tomh@421
   333
  Ty Coon, President of Vice
tomh@421
   334
tomh@421
   335
This General Public License does not permit incorporating your program into
tomh@421
   336
proprietary programs.  If your program is a subroutine library, you may
tomh@421
   337
consider it more useful to permit linking proprietary applications with the
tomh@421
   338
library.  If this is what you want to do, use the GNU Lesser General
tomh@421
   339
Public License instead of this License.