annotate COPYING @ 374:31f15781db36

add source listing.
author Robert McIntyre <rlm@mit.edu>
date Tue, 12 Mar 2013 04:23:55 +0000
parents e5636b1740f8
children
rev   line source
rlm@326 1 GNU GENERAL PUBLIC LICENSE
rlm@326 2 Version 2, June 1991
rlm@326 3
rlm@326 4 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
rlm@326 5 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
rlm@326 6 Everyone is permitted to copy and distribute verbatim copies
rlm@326 7 of this license document, but changing it is not allowed.
rlm@326 8
rlm@326 9 Preamble
rlm@326 10
rlm@326 11 The licenses for most software are designed to take away your
rlm@326 12 freedom to share and change it. By contrast, the GNU General Public
rlm@326 13 License is intended to guarantee your freedom to share and change free
rlm@326 14 software--to make sure the software is free for all its users. This
rlm@326 15 General Public License applies to most of the Free Software
rlm@326 16 Foundation's software and to any other program whose authors commit to
rlm@326 17 using it. (Some other Free Software Foundation software is covered by
rlm@326 18 the GNU Lesser General Public License instead.) You can apply it to
rlm@326 19 your programs, too.
rlm@326 20
rlm@326 21 When we speak of free software, we are referring to freedom, not
rlm@326 22 price. Our General Public Licenses are designed to make sure that you
rlm@326 23 have the freedom to distribute copies of free software (and charge for
rlm@326 24 this service if you wish), that you receive source code or can get it
rlm@326 25 if you want it, that you can change the software or use pieces of it
rlm@326 26 in new free programs; and that you know you can do these things.
rlm@326 27
rlm@326 28 To protect your rights, we need to make restrictions that forbid
rlm@326 29 anyone to deny you these rights or to ask you to surrender the rights.
rlm@326 30 These restrictions translate to certain responsibilities for you if you
rlm@326 31 distribute copies of the software, or if you modify it.
rlm@326 32
rlm@326 33 For example, if you distribute copies of such a program, whether
rlm@326 34 gratis or for a fee, you must give the recipients all the rights that
rlm@326 35 you have. You must make sure that they, too, receive or can get the
rlm@326 36 source code. And you must show them these terms so they know their
rlm@326 37 rights.
rlm@326 38
rlm@326 39 We protect your rights with two steps: (1) copyright the software, and
rlm@326 40 (2) offer you this license which gives you legal permission to copy,
rlm@326 41 distribute and/or modify the software.
rlm@326 42
rlm@326 43 Also, for each author's protection and ours, we want to make certain
rlm@326 44 that everyone understands that there is no warranty for this free
rlm@326 45 software. If the software is modified by someone else and passed on, we
rlm@326 46 want its recipients to know that what they have is not the original, so
rlm@326 47 that any problems introduced by others will not reflect on the original
rlm@326 48 authors' reputations.
rlm@326 49
rlm@326 50 Finally, any free program is threatened constantly by software
rlm@326 51 patents. We wish to avoid the danger that redistributors of a free
rlm@326 52 program will individually obtain patent licenses, in effect making the
rlm@326 53 program proprietary. To prevent this, we have made it clear that any
rlm@326 54 patent must be licensed for everyone's free use or not licensed at all.
rlm@326 55
rlm@326 56 The precise terms and conditions for copying, distribution and
rlm@326 57 modification follow.
rlm@326 58
rlm@326 59 GNU GENERAL PUBLIC LICENSE
rlm@326 60 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
rlm@326 61
rlm@326 62 0. This License applies to any program or other work which contains
rlm@326 63 a notice placed by the copyright holder saying it may be distributed
rlm@326 64 under the terms of this General Public License. The "Program", below,
rlm@326 65 refers to any such program or work, and a "work based on the Program"
rlm@326 66 means either the Program or any derivative work under copyright law:
rlm@326 67 that is to say, a work containing the Program or a portion of it,
rlm@326 68 either verbatim or with modifications and/or translated into another
rlm@326 69 language. (Hereinafter, translation is included without limitation in
rlm@326 70 the term "modification".) Each licensee is addressed as "you".
rlm@326 71
rlm@326 72 Activities other than copying, distribution and modification are not
rlm@326 73 covered by this License; they are outside its scope. The act of
rlm@326 74 running the Program is not restricted, and the output from the Program
rlm@326 75 is covered only if its contents constitute a work based on the
rlm@326 76 Program (independent of having been made by running the Program).
rlm@326 77 Whether that is true depends on what the Program does.
rlm@326 78
rlm@326 79 1. You may copy and distribute verbatim copies of the Program's
rlm@326 80 source code as you receive it, in any medium, provided that you
rlm@326 81 conspicuously and appropriately publish on each copy an appropriate
rlm@326 82 copyright notice and disclaimer of warranty; keep intact all the
rlm@326 83 notices that refer to this License and to the absence of any warranty;
rlm@326 84 and give any other recipients of the Program a copy of this License
rlm@326 85 along with the Program.
rlm@326 86
rlm@326 87 You may charge a fee for the physical act of transferring a copy, and
rlm@326 88 you may at your option offer warranty protection in exchange for a fee.
rlm@326 89
rlm@326 90 2. You may modify your copy or copies of the Program or any portion
rlm@326 91 of it, thus forming a work based on the Program, and copy and
rlm@326 92 distribute such modifications or work under the terms of Section 1
rlm@326 93 above, provided that you also meet all of these conditions:
rlm@326 94
rlm@326 95 a) You must cause the modified files to carry prominent notices
rlm@326 96 stating that you changed the files and the date of any change.
rlm@326 97
rlm@326 98 b) You must cause any work that you distribute or publish, that in
rlm@326 99 whole or in part contains or is derived from the Program or any
rlm@326 100 part thereof, to be licensed as a whole at no charge to all third
rlm@326 101 parties under the terms of this License.
rlm@326 102
rlm@326 103 c) If the modified program normally reads commands interactively
rlm@326 104 when run, you must cause it, when started running for such
rlm@326 105 interactive use in the most ordinary way, to print or display an
rlm@326 106 announcement including an appropriate copyright notice and a
rlm@326 107 notice that there is no warranty (or else, saying that you provide
rlm@326 108 a warranty) and that users may redistribute the program under
rlm@326 109 these conditions, and telling the user how to view a copy of this
rlm@326 110 License. (Exception: if the Program itself is interactive but
rlm@326 111 does not normally print such an announcement, your work based on
rlm@326 112 the Program is not required to print an announcement.)
rlm@326 113
rlm@326 114 These requirements apply to the modified work as a whole. If
rlm@326 115 identifiable sections of that work are not derived from the Program,
rlm@326 116 and can be reasonably considered independent and separate works in
rlm@326 117 themselves, then this License, and its terms, do not apply to those
rlm@326 118 sections when you distribute them as separate works. But when you
rlm@326 119 distribute the same sections as part of a whole which is a work based
rlm@326 120 on the Program, the distribution of the whole must be on the terms of
rlm@326 121 this License, whose permissions for other licensees extend to the
rlm@326 122 entire whole, and thus to each and every part regardless of who wrote it.
rlm@326 123
rlm@326 124 Thus, it is not the intent of this section to claim rights or contest
rlm@326 125 your rights to work written entirely by you; rather, the intent is to
rlm@326 126 exercise the right to control the distribution of derivative or
rlm@326 127 collective works based on the Program.
rlm@326 128
rlm@326 129 In addition, mere aggregation of another work not based on the Program
rlm@326 130 with the Program (or with a work based on the Program) on a volume of
rlm@326 131 a storage or distribution medium does not bring the other work under
rlm@326 132 the scope of this License.
rlm@326 133
rlm@326 134 3. You may copy and distribute the Program (or a work based on it,
rlm@326 135 under Section 2) in object code or executable form under the terms of
rlm@326 136 Sections 1 and 2 above provided that you also do one of the following:
rlm@326 137
rlm@326 138 a) Accompany it with the complete corresponding machine-readable
rlm@326 139 source code, which must be distributed under the terms of Sections
rlm@326 140 1 and 2 above on a medium customarily used for software interchange; or,
rlm@326 141
rlm@326 142 b) Accompany it with a written offer, valid for at least three
rlm@326 143 years, to give any third party, for a charge no more than your
rlm@326 144 cost of physically performing source distribution, a complete
rlm@326 145 machine-readable copy of the corresponding source code, to be
rlm@326 146 distributed under the terms of Sections 1 and 2 above on a medium
rlm@326 147 customarily used for software interchange; or,
rlm@326 148
rlm@326 149 c) Accompany it with the information you received as to the offer
rlm@326 150 to distribute corresponding source code. (This alternative is
rlm@326 151 allowed only for noncommercial distribution and only if you
rlm@326 152 received the program in object code or executable form with such
rlm@326 153 an offer, in accord with Subsection b above.)
rlm@326 154
rlm@326 155 The source code for a work means the preferred form of the work for
rlm@326 156 making modifications to it. For an executable work, complete source
rlm@326 157 code means all the source code for all modules it contains, plus any
rlm@326 158 associated interface definition files, plus the scripts used to
rlm@326 159 control compilation and installation of the executable. However, as a
rlm@326 160 special exception, the source code distributed need not include
rlm@326 161 anything that is normally distributed (in either source or binary
rlm@326 162 form) with the major components (compiler, kernel, and so on) of the
rlm@326 163 operating system on which the executable runs, unless that component
rlm@326 164 itself accompanies the executable.
rlm@326 165
rlm@326 166 If distribution of executable or object code is made by offering
rlm@326 167 access to copy from a designated place, then offering equivalent
rlm@326 168 access to copy the source code from the same place counts as
rlm@326 169 distribution of the source code, even though third parties are not
rlm@326 170 compelled to copy the source along with the object code.
rlm@326 171
rlm@326 172 4. You may not copy, modify, sublicense, or distribute the Program
rlm@326 173 except as expressly provided under this License. Any attempt
rlm@326 174 otherwise to copy, modify, sublicense or distribute the Program is
rlm@326 175 void, and will automatically terminate your rights under this License.
rlm@326 176 However, parties who have received copies, or rights, from you under
rlm@326 177 this License will not have their licenses terminated so long as such
rlm@326 178 parties remain in full compliance.
rlm@326 179
rlm@326 180 5. You are not required to accept this License, since you have not
rlm@326 181 signed it. However, nothing else grants you permission to modify or
rlm@326 182 distribute the Program or its derivative works. These actions are
rlm@326 183 prohibited by law if you do not accept this License. Therefore, by
rlm@326 184 modifying or distributing the Program (or any work based on the
rlm@326 185 Program), you indicate your acceptance of this License to do so, and
rlm@326 186 all its terms and conditions for copying, distributing or modifying
rlm@326 187 the Program or works based on it.
rlm@326 188
rlm@326 189 6. Each time you redistribute the Program (or any work based on the
rlm@326 190 Program), the recipient automatically receives a license from the
rlm@326 191 original licensor to copy, distribute or modify the Program subject to
rlm@326 192 these terms and conditions. You may not impose any further
rlm@326 193 restrictions on the recipients' exercise of the rights granted herein.
rlm@326 194 You are not responsible for enforcing compliance by third parties to
rlm@326 195 this License.
rlm@326 196
rlm@326 197 7. If, as a consequence of a court judgment or allegation of patent
rlm@326 198 infringement or for any other reason (not limited to patent issues),
rlm@326 199 conditions are imposed on you (whether by court order, agreement or
rlm@326 200 otherwise) that contradict the conditions of this License, they do not
rlm@326 201 excuse you from the conditions of this License. If you cannot
rlm@326 202 distribute so as to satisfy simultaneously your obligations under this
rlm@326 203 License and any other pertinent obligations, then as a consequence you
rlm@326 204 may not distribute the Program at all. For example, if a patent
rlm@326 205 license would not permit royalty-free redistribution of the Program by
rlm@326 206 all those who receive copies directly or indirectly through you, then
rlm@326 207 the only way you could satisfy both it and this License would be to
rlm@326 208 refrain entirely from distribution of the Program.
rlm@326 209
rlm@326 210 If any portion of this section is held invalid or unenforceable under
rlm@326 211 any particular circumstance, the balance of the section is intended to
rlm@326 212 apply and the section as a whole is intended to apply in other
rlm@326 213 circumstances.
rlm@326 214
rlm@326 215 It is not the purpose of this section to induce you to infringe any
rlm@326 216 patents or other property right claims or to contest validity of any
rlm@326 217 such claims; this section has the sole purpose of protecting the
rlm@326 218 integrity of the free software distribution system, which is
rlm@326 219 implemented by public license practices. Many people have made
rlm@326 220 generous contributions to the wide range of software distributed
rlm@326 221 through that system in reliance on consistent application of that
rlm@326 222 system; it is up to the author/donor to decide if he or she is willing
rlm@326 223 to distribute software through any other system and a licensee cannot
rlm@326 224 impose that choice.
rlm@326 225
rlm@326 226 This section is intended to make thoroughly clear what is believed to
rlm@326 227 be a consequence of the rest of this License.
rlm@326 228
rlm@326 229 8. If the distribution and/or use of the Program is restricted in
rlm@326 230 certain countries either by patents or by copyrighted interfaces, the
rlm@326 231 original copyright holder who places the Program under this License
rlm@326 232 may add an explicit geographical distribution limitation excluding
rlm@326 233 those countries, so that distribution is permitted only in or among
rlm@326 234 countries not thus excluded. In such case, this License incorporates
rlm@326 235 the limitation as if written in the body of this License.
rlm@326 236
rlm@326 237 9. The Free Software Foundation may publish revised and/or new versions
rlm@326 238 of the General Public License from time to time. Such new versions will
rlm@326 239 be similar in spirit to the present version, but may differ in detail to
rlm@326 240 address new problems or concerns.
rlm@326 241
rlm@326 242 Each version is given a distinguishing version number. If the Program
rlm@326 243 specifies a version number of this License which applies to it and "any
rlm@326 244 later version", you have the option of following the terms and conditions
rlm@326 245 either of that version or of any later version published by the Free
rlm@326 246 Software Foundation. If the Program does not specify a version number of
rlm@326 247 this License, you may choose any version ever published by the Free Software
rlm@326 248 Foundation.
rlm@326 249
rlm@326 250 10. If you wish to incorporate parts of the Program into other free
rlm@326 251 programs whose distribution conditions are different, write to the author
rlm@326 252 to ask for permission. For software which is copyrighted by the Free
rlm@326 253 Software Foundation, write to the Free Software Foundation; we sometimes
rlm@326 254 make exceptions for this. Our decision will be guided by the two goals
rlm@326 255 of preserving the free status of all derivatives of our free software and
rlm@326 256 of promoting the sharing and reuse of software generally.
rlm@326 257
rlm@326 258 NO WARRANTY
rlm@326 259
rlm@326 260 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
rlm@326 261 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
rlm@326 262 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
rlm@326 263 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
rlm@326 264 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
rlm@326 265 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
rlm@326 266 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
rlm@326 267 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
rlm@326 268 REPAIR OR CORRECTION.
rlm@326 269
rlm@326 270 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
rlm@326 271 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
rlm@326 272 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
rlm@326 273 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
rlm@326 274 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
rlm@326 275 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
rlm@326 276 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
rlm@326 277 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
rlm@326 278 POSSIBILITY OF SUCH DAMAGES.
rlm@326 279
rlm@326 280 END OF TERMS AND CONDITIONS
rlm@326 281
rlm@326 282 How to Apply These Terms to Your New Programs
rlm@326 283
rlm@326 284 If you develop a new program, and you want it to be of the greatest
rlm@326 285 possible use to the public, the best way to achieve this is to make it
rlm@326 286 free software which everyone can redistribute and change under these terms.
rlm@326 287
rlm@326 288 To do so, attach the following notices to the program. It is safest
rlm@326 289 to attach them to the start of each source file to most effectively
rlm@326 290 convey the exclusion of warranty; and each file should have at least
rlm@326 291 the "copyright" line and a pointer to where the full notice is found.
rlm@326 292
rlm@326 293 <one line to give the program's name and a brief idea of what it does.>
rlm@326 294 Copyright (C) <year> <name of author>
rlm@326 295
rlm@326 296 This program is free software; you can redistribute it and/or modify
rlm@326 297 it under the terms of the GNU General Public License as published by
rlm@326 298 the Free Software Foundation; either version 2 of the License, or
rlm@326 299 (at your option) any later version.
rlm@326 300
rlm@326 301 This program is distributed in the hope that it will be useful,
rlm@326 302 but WITHOUT ANY WARRANTY; without even the implied warranty of
rlm@326 303 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
rlm@326 304 GNU General Public License for more details.
rlm@326 305
rlm@326 306 You should have received a copy of the GNU General Public License along
rlm@326 307 with this program; if not, write to the Free Software Foundation, Inc.,
rlm@326 308 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
rlm@326 309
rlm@326 310 Also add information on how to contact you by electronic and paper mail.
rlm@326 311
rlm@326 312 If the program is interactive, make it output a short notice like this
rlm@326 313 when it starts in an interactive mode:
rlm@326 314
rlm@326 315 Gnomovision version 69, Copyright (C) year name of author
rlm@326 316 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
rlm@326 317 This is free software, and you are welcome to redistribute it
rlm@326 318 under certain conditions; type `show c' for details.
rlm@326 319
rlm@326 320 The hypothetical commands `show w' and `show c' should show the appropriate
rlm@326 321 parts of the General Public License. Of course, the commands you use may
rlm@326 322 be called something other than `show w' and `show c'; they could even be
rlm@326 323 mouse-clicks or menu items--whatever suits your program.
rlm@326 324
rlm@326 325 You should also get your employer (if you work as a programmer) or your
rlm@326 326 school, if any, to sign a "copyright disclaimer" for the program, if
rlm@326 327 necessary. Here is a sample; alter the names:
rlm@326 328
rlm@326 329 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
rlm@326 330 `Gnomovision' (which makes passes at compilers) written by James Hacker.
rlm@326 331
rlm@326 332 <signature of Ty Coon>, 1 April 1989
rlm@326 333 Ty Coon, President of Vice
rlm@326 334
rlm@326 335 This General Public License does not permit incorporating your program into
rlm@326 336 proprietary programs. If your program is a subroutine library, you may
rlm@326 337 consider it more useful to permit linking proprietary applications with the
rlm@326 338 library. If this is what you want to do, use the GNU Lesser General
rlm@326 339 Public License instead of this License.