annotate COPYING @ 2580:5de5f3e0803d

Update changelog
author Chris Cannam
date Thu, 23 Jul 2020 16:17:02 +0100
parents 40f16d6cbab2
children
rev   line source
Chris@350 1 GNU GENERAL PUBLIC LICENSE
Chris@350 2 Version 2, June 1991
Chris@350 3
Chris@350 4 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
Chris@2157 5 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Chris@350 6 Everyone is permitted to copy and distribute verbatim copies
Chris@350 7 of this license document, but changing it is not allowed.
Chris@350 8
Chris@350 9 Preamble
Chris@350 10
Chris@350 11 The licenses for most software are designed to take away your
Chris@350 12 freedom to share and change it. By contrast, the GNU General Public
Chris@350 13 License is intended to guarantee your freedom to share and change free
Chris@350 14 software--to make sure the software is free for all its users. This
Chris@350 15 General Public License applies to most of the Free Software
Chris@350 16 Foundation's software and to any other program whose authors commit to
Chris@350 17 using it. (Some other Free Software Foundation software is covered by
Chris@350 18 the GNU Library General Public License instead.) You can apply it to
Chris@350 19 your programs, too.
Chris@350 20
Chris@350 21 When we speak of free software, we are referring to freedom, not
Chris@350 22 price. Our General Public Licenses are designed to make sure that you
Chris@350 23 have the freedom to distribute copies of free software (and charge for
Chris@350 24 this service if you wish), that you receive source code or can get it
Chris@350 25 if you want it, that you can change the software or use pieces of it
Chris@350 26 in new free programs; and that you know you can do these things.
Chris@350 27
Chris@350 28 To protect your rights, we need to make restrictions that forbid
Chris@350 29 anyone to deny you these rights or to ask you to surrender the rights.
Chris@350 30 These restrictions translate to certain responsibilities for you if you
Chris@350 31 distribute copies of the software, or if you modify it.
Chris@350 32
Chris@350 33 For example, if you distribute copies of such a program, whether
Chris@350 34 gratis or for a fee, you must give the recipients all the rights that
Chris@350 35 you have. You must make sure that they, too, receive or can get the
Chris@350 36 source code. And you must show them these terms so they know their
Chris@350 37 rights.
Chris@350 38
Chris@350 39 We protect your rights with two steps: (1) copyright the software, and
Chris@350 40 (2) offer you this license which gives you legal permission to copy,
Chris@350 41 distribute and/or modify the software.
Chris@350 42
Chris@350 43 Also, for each author's protection and ours, we want to make certain
Chris@350 44 that everyone understands that there is no warranty for this free
Chris@350 45 software. If the software is modified by someone else and passed on, we
Chris@350 46 want its recipients to know that what they have is not the original, so
Chris@350 47 that any problems introduced by others will not reflect on the original
Chris@350 48 authors' reputations.
Chris@350 49
Chris@350 50 Finally, any free program is threatened constantly by software
Chris@350 51 patents. We wish to avoid the danger that redistributors of a free
Chris@350 52 program will individually obtain patent licenses, in effect making the
Chris@350 53 program proprietary. To prevent this, we have made it clear that any
Chris@350 54 patent must be licensed for everyone's free use or not licensed at all.
Chris@350 55
Chris@350 56 The precise terms and conditions for copying, distribution and
Chris@350 57 modification follow.
Chris@350 58
Chris@350 59 GNU GENERAL PUBLIC LICENSE
Chris@350 60 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
Chris@350 61
Chris@350 62 0. This License applies to any program or other work which contains
Chris@350 63 a notice placed by the copyright holder saying it may be distributed
Chris@350 64 under the terms of this General Public License. The "Program", below,
Chris@350 65 refers to any such program or work, and a "work based on the Program"
Chris@350 66 means either the Program or any derivative work under copyright law:
Chris@350 67 that is to say, a work containing the Program or a portion of it,
Chris@350 68 either verbatim or with modifications and/or translated into another
Chris@350 69 language. (Hereinafter, translation is included without limitation in
Chris@350 70 the term "modification".) Each licensee is addressed as "you".
Chris@350 71
Chris@350 72 Activities other than copying, distribution and modification are not
Chris@350 73 covered by this License; they are outside its scope. The act of
Chris@350 74 running the Program is not restricted, and the output from the Program
Chris@350 75 is covered only if its contents constitute a work based on the
Chris@350 76 Program (independent of having been made by running the Program).
Chris@350 77 Whether that is true depends on what the Program does.
Chris@350 78
Chris@350 79 1. You may copy and distribute verbatim copies of the Program's
Chris@350 80 source code as you receive it, in any medium, provided that you
Chris@350 81 conspicuously and appropriately publish on each copy an appropriate
Chris@350 82 copyright notice and disclaimer of warranty; keep intact all the
Chris@350 83 notices that refer to this License and to the absence of any warranty;
Chris@350 84 and give any other recipients of the Program a copy of this License
Chris@350 85 along with the Program.
Chris@350 86
Chris@350 87 You may charge a fee for the physical act of transferring a copy, and
Chris@350 88 you may at your option offer warranty protection in exchange for a fee.
Chris@350 89
Chris@350 90 2. You may modify your copy or copies of the Program or any portion
Chris@350 91 of it, thus forming a work based on the Program, and copy and
Chris@350 92 distribute such modifications or work under the terms of Section 1
Chris@350 93 above, provided that you also meet all of these conditions:
Chris@350 94
Chris@350 95 a) You must cause the modified files to carry prominent notices
Chris@350 96 stating that you changed the files and the date of any change.
Chris@350 97
Chris@350 98 b) You must cause any work that you distribute or publish, that in
Chris@350 99 whole or in part contains or is derived from the Program or any
Chris@350 100 part thereof, to be licensed as a whole at no charge to all third
Chris@350 101 parties under the terms of this License.
Chris@350 102
Chris@350 103 c) If the modified program normally reads commands interactively
Chris@350 104 when run, you must cause it, when started running for such
Chris@350 105 interactive use in the most ordinary way, to print or display an
Chris@350 106 announcement including an appropriate copyright notice and a
Chris@350 107 notice that there is no warranty (or else, saying that you provide
Chris@350 108 a warranty) and that users may redistribute the program under
Chris@350 109 these conditions, and telling the user how to view a copy of this
Chris@350 110 License. (Exception: if the Program itself is interactive but
Chris@350 111 does not normally print such an announcement, your work based on
Chris@350 112 the Program is not required to print an announcement.)
Chris@350 113
Chris@350 114 These requirements apply to the modified work as a whole. If
Chris@350 115 identifiable sections of that work are not derived from the Program,
Chris@350 116 and can be reasonably considered independent and separate works in
Chris@350 117 themselves, then this License, and its terms, do not apply to those
Chris@350 118 sections when you distribute them as separate works. But when you
Chris@350 119 distribute the same sections as part of a whole which is a work based
Chris@350 120 on the Program, the distribution of the whole must be on the terms of
Chris@350 121 this License, whose permissions for other licensees extend to the
Chris@350 122 entire whole, and thus to each and every part regardless of who wrote it.
Chris@350 123
Chris@350 124 Thus, it is not the intent of this section to claim rights or contest
Chris@350 125 your rights to work written entirely by you; rather, the intent is to
Chris@350 126 exercise the right to control the distribution of derivative or
Chris@350 127 collective works based on the Program.
Chris@350 128
Chris@350 129 In addition, mere aggregation of another work not based on the Program
Chris@350 130 with the Program (or with a work based on the Program) on a volume of
Chris@350 131 a storage or distribution medium does not bring the other work under
Chris@350 132 the scope of this License.
Chris@350 133
Chris@350 134 3. You may copy and distribute the Program (or a work based on it,
Chris@350 135 under Section 2) in object code or executable form under the terms of
Chris@350 136 Sections 1 and 2 above provided that you also do one of the following:
Chris@350 137
Chris@350 138 a) Accompany it with the complete corresponding machine-readable
Chris@350 139 source code, which must be distributed under the terms of Sections
Chris@350 140 1 and 2 above on a medium customarily used for software interchange; or,
Chris@350 141
Chris@350 142 b) Accompany it with a written offer, valid for at least three
Chris@350 143 years, to give any third party, for a charge no more than your
Chris@350 144 cost of physically performing source distribution, a complete
Chris@350 145 machine-readable copy of the corresponding source code, to be
Chris@350 146 distributed under the terms of Sections 1 and 2 above on a medium
Chris@350 147 customarily used for software interchange; or,
Chris@350 148
Chris@350 149 c) Accompany it with the information you received as to the offer
Chris@350 150 to distribute corresponding source code. (This alternative is
Chris@350 151 allowed only for noncommercial distribution and only if you
Chris@350 152 received the program in object code or executable form with such
Chris@350 153 an offer, in accord with Subsection b above.)
Chris@350 154
Chris@350 155 The source code for a work means the preferred form of the work for
Chris@350 156 making modifications to it. For an executable work, complete source
Chris@350 157 code means all the source code for all modules it contains, plus any
Chris@350 158 associated interface definition files, plus the scripts used to
Chris@350 159 control compilation and installation of the executable. However, as a
Chris@350 160 special exception, the source code distributed need not include
Chris@350 161 anything that is normally distributed (in either source or binary
Chris@350 162 form) with the major components (compiler, kernel, and so on) of the
Chris@350 163 operating system on which the executable runs, unless that component
Chris@350 164 itself accompanies the executable.
Chris@350 165
Chris@350 166 If distribution of executable or object code is made by offering
Chris@350 167 access to copy from a designated place, then offering equivalent
Chris@350 168 access to copy the source code from the same place counts as
Chris@350 169 distribution of the source code, even though third parties are not
Chris@350 170 compelled to copy the source along with the object code.
Chris@350 171
Chris@350 172 4. You may not copy, modify, sublicense, or distribute the Program
Chris@350 173 except as expressly provided under this License. Any attempt
Chris@350 174 otherwise to copy, modify, sublicense or distribute the Program is
Chris@350 175 void, and will automatically terminate your rights under this License.
Chris@350 176 However, parties who have received copies, or rights, from you under
Chris@350 177 this License will not have their licenses terminated so long as such
Chris@350 178 parties remain in full compliance.
Chris@350 179
Chris@350 180 5. You are not required to accept this License, since you have not
Chris@350 181 signed it. However, nothing else grants you permission to modify or
Chris@350 182 distribute the Program or its derivative works. These actions are
Chris@350 183 prohibited by law if you do not accept this License. Therefore, by
Chris@350 184 modifying or distributing the Program (or any work based on the
Chris@350 185 Program), you indicate your acceptance of this License to do so, and
Chris@350 186 all its terms and conditions for copying, distributing or modifying
Chris@350 187 the Program or works based on it.
Chris@350 188
Chris@350 189 6. Each time you redistribute the Program (or any work based on the
Chris@350 190 Program), the recipient automatically receives a license from the
Chris@350 191 original licensor to copy, distribute or modify the Program subject to
Chris@350 192 these terms and conditions. You may not impose any further
Chris@350 193 restrictions on the recipients' exercise of the rights granted herein.
Chris@350 194 You are not responsible for enforcing compliance by third parties to
Chris@350 195 this License.
Chris@350 196
Chris@350 197 7. If, as a consequence of a court judgment or allegation of patent
Chris@350 198 infringement or for any other reason (not limited to patent issues),
Chris@350 199 conditions are imposed on you (whether by court order, agreement or
Chris@350 200 otherwise) that contradict the conditions of this License, they do not
Chris@350 201 excuse you from the conditions of this License. If you cannot
Chris@350 202 distribute so as to satisfy simultaneously your obligations under this
Chris@350 203 License and any other pertinent obligations, then as a consequence you
Chris@350 204 may not distribute the Program at all. For example, if a patent
Chris@350 205 license would not permit royalty-free redistribution of the Program by
Chris@350 206 all those who receive copies directly or indirectly through you, then
Chris@350 207 the only way you could satisfy both it and this License would be to
Chris@350 208 refrain entirely from distribution of the Program.
Chris@350 209
Chris@350 210 If any portion of this section is held invalid or unenforceable under
Chris@350 211 any particular circumstance, the balance of the section is intended to
Chris@350 212 apply and the section as a whole is intended to apply in other
Chris@350 213 circumstances.
Chris@350 214
Chris@350 215 It is not the purpose of this section to induce you to infringe any
Chris@350 216 patents or other property right claims or to contest validity of any
Chris@350 217 such claims; this section has the sole purpose of protecting the
Chris@350 218 integrity of the free software distribution system, which is
Chris@350 219 implemented by public license practices. Many people have made
Chris@350 220 generous contributions to the wide range of software distributed
Chris@350 221 through that system in reliance on consistent application of that
Chris@350 222 system; it is up to the author/donor to decide if he or she is willing
Chris@350 223 to distribute software through any other system and a licensee cannot
Chris@350 224 impose that choice.
Chris@350 225
Chris@350 226 This section is intended to make thoroughly clear what is believed to
Chris@350 227 be a consequence of the rest of this License.
Chris@350 228
Chris@350 229 8. If the distribution and/or use of the Program is restricted in
Chris@350 230 certain countries either by patents or by copyrighted interfaces, the
Chris@350 231 original copyright holder who places the Program under this License
Chris@350 232 may add an explicit geographical distribution limitation excluding
Chris@350 233 those countries, so that distribution is permitted only in or among
Chris@350 234 countries not thus excluded. In such case, this License incorporates
Chris@350 235 the limitation as if written in the body of this License.
Chris@350 236
Chris@350 237 9. The Free Software Foundation may publish revised and/or new versions
Chris@350 238 of the General Public License from time to time. Such new versions will
Chris@350 239 be similar in spirit to the present version, but may differ in detail to
Chris@350 240 address new problems or concerns.
Chris@350 241
Chris@350 242 Each version is given a distinguishing version number. If the Program
Chris@350 243 specifies a version number of this License which applies to it and "any
Chris@350 244 later version", you have the option of following the terms and conditions
Chris@350 245 either of that version or of any later version published by the Free
Chris@350 246 Software Foundation. If the Program does not specify a version number of
Chris@350 247 this License, you may choose any version ever published by the Free Software
Chris@350 248 Foundation.
Chris@350 249
Chris@350 250 10. If you wish to incorporate parts of the Program into other free
Chris@350 251 programs whose distribution conditions are different, write to the author
Chris@350 252 to ask for permission. For software which is copyrighted by the Free
Chris@350 253 Software Foundation, write to the Free Software Foundation; we sometimes
Chris@350 254 make exceptions for this. Our decision will be guided by the two goals
Chris@350 255 of preserving the free status of all derivatives of our free software and
Chris@350 256 of promoting the sharing and reuse of software generally.
Chris@350 257
Chris@350 258 NO WARRANTY
Chris@350 259
Chris@350 260 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
Chris@350 261 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
Chris@350 262 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
Chris@350 263 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
Chris@350 264 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Chris@350 265 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
Chris@350 266 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
Chris@350 267 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
Chris@350 268 REPAIR OR CORRECTION.
Chris@350 269
Chris@350 270 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
Chris@350 271 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
Chris@350 272 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
Chris@350 273 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
Chris@350 274 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
Chris@350 275 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
Chris@350 276 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
Chris@350 277 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
Chris@350 278 POSSIBILITY OF SUCH DAMAGES.
Chris@350 279
Chris@350 280 END OF TERMS AND CONDITIONS