annotate COPYING @ 399:a3912193ce69 tip

Default branch is now named default on git as well as hg, in case we ever want to switch to mirroring in the other direction
author Chris Cannam
date Thu, 27 Aug 2020 15:57:37 +0100
parents 0369c31f9c69
children
rev   line source
Chris@2 1 GNU GENERAL PUBLIC LICENSE
Chris@2 2 Version 2, June 1991
Chris@2 3
Chris@2 4 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
Chris@253 5 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Chris@253 6
Chris@2 7 Everyone is permitted to copy and distribute verbatim copies
Chris@2 8 of this license document, but changing it is not allowed.
Chris@2 9
Chris@2 10 Preamble
Chris@2 11
Chris@2 12 The licenses for most software are designed to take away your
Chris@2 13 freedom to share and change it. By contrast, the GNU General Public
Chris@2 14 License is intended to guarantee your freedom to share and change free
Chris@2 15 software--to make sure the software is free for all its users. This
Chris@2 16 General Public License applies to most of the Free Software
Chris@2 17 Foundation's software and to any other program whose authors commit to
Chris@2 18 using it. (Some other Free Software Foundation software is covered by
Chris@2 19 the GNU Library General Public License instead.) You can apply it to
Chris@2 20 your programs, too.
Chris@2 21
Chris@2 22 When we speak of free software, we are referring to freedom, not
Chris@2 23 price. Our General Public Licenses are designed to make sure that you
Chris@2 24 have the freedom to distribute copies of free software (and charge for
Chris@2 25 this service if you wish), that you receive source code or can get it
Chris@2 26 if you want it, that you can change the software or use pieces of it
Chris@2 27 in new free programs; and that you know you can do these things.
Chris@2 28
Chris@2 29 To protect your rights, we need to make restrictions that forbid
Chris@2 30 anyone to deny you these rights or to ask you to surrender the rights.
Chris@2 31 These restrictions translate to certain responsibilities for you if you
Chris@2 32 distribute copies of the software, or if you modify it.
Chris@2 33
Chris@2 34 For example, if you distribute copies of such a program, whether
Chris@2 35 gratis or for a fee, you must give the recipients all the rights that
Chris@2 36 you have. You must make sure that they, too, receive or can get the
Chris@2 37 source code. And you must show them these terms so they know their
Chris@2 38 rights.
Chris@2 39
Chris@2 40 We protect your rights with two steps: (1) copyright the software, and
Chris@2 41 (2) offer you this license which gives you legal permission to copy,
Chris@2 42 distribute and/or modify the software.
Chris@2 43
Chris@2 44 Also, for each author's protection and ours, we want to make certain
Chris@2 45 that everyone understands that there is no warranty for this free
Chris@2 46 software. If the software is modified by someone else and passed on, we
Chris@2 47 want its recipients to know that what they have is not the original, so
Chris@2 48 that any problems introduced by others will not reflect on the original
Chris@2 49 authors' reputations.
Chris@2 50
Chris@2 51 Finally, any free program is threatened constantly by software
Chris@2 52 patents. We wish to avoid the danger that redistributors of a free
Chris@2 53 program will individually obtain patent licenses, in effect making the
Chris@2 54 program proprietary. To prevent this, we have made it clear that any
Chris@2 55 patent must be licensed for everyone's free use or not licensed at all.
Chris@2 56
Chris@2 57 The precise terms and conditions for copying, distribution and
Chris@2 58 modification follow.
Chris@2 59
Chris@2 60 GNU GENERAL PUBLIC LICENSE
Chris@2 61 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
Chris@2 62
Chris@2 63 0. This License applies to any program or other work which contains
Chris@2 64 a notice placed by the copyright holder saying it may be distributed
Chris@2 65 under the terms of this General Public License. The "Program", below,
Chris@2 66 refers to any such program or work, and a "work based on the Program"
Chris@2 67 means either the Program or any derivative work under copyright law:
Chris@2 68 that is to say, a work containing the Program or a portion of it,
Chris@2 69 either verbatim or with modifications and/or translated into another
Chris@2 70 language. (Hereinafter, translation is included without limitation in
Chris@2 71 the term "modification".) Each licensee is addressed as "you".
Chris@2 72
Chris@2 73 Activities other than copying, distribution and modification are not
Chris@2 74 covered by this License; they are outside its scope. The act of
Chris@2 75 running the Program is not restricted, and the output from the Program
Chris@2 76 is covered only if its contents constitute a work based on the
Chris@2 77 Program (independent of having been made by running the Program).
Chris@2 78 Whether that is true depends on what the Program does.
Chris@2 79
Chris@2 80 1. You may copy and distribute verbatim copies of the Program's
Chris@2 81 source code as you receive it, in any medium, provided that you
Chris@2 82 conspicuously and appropriately publish on each copy an appropriate
Chris@2 83 copyright notice and disclaimer of warranty; keep intact all the
Chris@2 84 notices that refer to this License and to the absence of any warranty;
Chris@2 85 and give any other recipients of the Program a copy of this License
Chris@2 86 along with the Program.
Chris@2 87
Chris@2 88 You may charge a fee for the physical act of transferring a copy, and
Chris@2 89 you may at your option offer warranty protection in exchange for a fee.
Chris@2 90
Chris@2 91 2. You may modify your copy or copies of the Program or any portion
Chris@2 92 of it, thus forming a work based on the Program, and copy and
Chris@2 93 distribute such modifications or work under the terms of Section 1
Chris@2 94 above, provided that you also meet all of these conditions:
Chris@2 95
Chris@2 96 a) You must cause the modified files to carry prominent notices
Chris@2 97 stating that you changed the files and the date of any change.
Chris@2 98
Chris@2 99 b) You must cause any work that you distribute or publish, that in
Chris@2 100 whole or in part contains or is derived from the Program or any
Chris@2 101 part thereof, to be licensed as a whole at no charge to all third
Chris@2 102 parties under the terms of this License.
Chris@2 103
Chris@2 104 c) If the modified program normally reads commands interactively
Chris@2 105 when run, you must cause it, when started running for such
Chris@2 106 interactive use in the most ordinary way, to print or display an
Chris@2 107 announcement including an appropriate copyright notice and a
Chris@2 108 notice that there is no warranty (or else, saying that you provide
Chris@2 109 a warranty) and that users may redistribute the program under
Chris@2 110 these conditions, and telling the user how to view a copy of this
Chris@2 111 License. (Exception: if the Program itself is interactive but
Chris@2 112 does not normally print such an announcement, your work based on
Chris@2 113 the Program is not required to print an announcement.)
Chris@2 114
Chris@2 115 These requirements apply to the modified work as a whole. If
Chris@2 116 identifiable sections of that work are not derived from the Program,
Chris@2 117 and can be reasonably considered independent and separate works in
Chris@2 118 themselves, then this License, and its terms, do not apply to those
Chris@2 119 sections when you distribute them as separate works. But when you
Chris@2 120 distribute the same sections as part of a whole which is a work based
Chris@2 121 on the Program, the distribution of the whole must be on the terms of
Chris@2 122 this License, whose permissions for other licensees extend to the
Chris@2 123 entire whole, and thus to each and every part regardless of who wrote it.
Chris@2 124
Chris@2 125 Thus, it is not the intent of this section to claim rights or contest
Chris@2 126 your rights to work written entirely by you; rather, the intent is to
Chris@2 127 exercise the right to control the distribution of derivative or
Chris@2 128 collective works based on the Program.
Chris@2 129
Chris@2 130 In addition, mere aggregation of another work not based on the Program
Chris@2 131 with the Program (or with a work based on the Program) on a volume of
Chris@2 132 a storage or distribution medium does not bring the other work under
Chris@2 133 the scope of this License.
Chris@2 134
Chris@2 135 3. You may copy and distribute the Program (or a work based on it,
Chris@2 136 under Section 2) in object code or executable form under the terms of
Chris@2 137 Sections 1 and 2 above provided that you also do one of the following:
Chris@2 138
Chris@2 139 a) Accompany it with the complete corresponding machine-readable
Chris@2 140 source code, which must be distributed under the terms of Sections
Chris@2 141 1 and 2 above on a medium customarily used for software interchange; or,
Chris@2 142
Chris@2 143 b) Accompany it with a written offer, valid for at least three
Chris@2 144 years, to give any third party, for a charge no more than your
Chris@2 145 cost of physically performing source distribution, a complete
Chris@2 146 machine-readable copy of the corresponding source code, to be
Chris@2 147 distributed under the terms of Sections 1 and 2 above on a medium
Chris@2 148 customarily used for software interchange; or,
Chris@2 149
Chris@2 150 c) Accompany it with the information you received as to the offer
Chris@2 151 to distribute corresponding source code. (This alternative is
Chris@2 152 allowed only for noncommercial distribution and only if you
Chris@2 153 received the program in object code or executable form with such
Chris@2 154 an offer, in accord with Subsection b above.)
Chris@2 155
Chris@2 156 The source code for a work means the preferred form of the work for
Chris@2 157 making modifications to it. For an executable work, complete source
Chris@2 158 code means all the source code for all modules it contains, plus any
Chris@2 159 associated interface definition files, plus the scripts used to
Chris@2 160 control compilation and installation of the executable. However, as a
Chris@2 161 special exception, the source code distributed need not include
Chris@2 162 anything that is normally distributed (in either source or binary
Chris@2 163 form) with the major components (compiler, kernel, and so on) of the
Chris@2 164 operating system on which the executable runs, unless that component
Chris@2 165 itself accompanies the executable.
Chris@2 166
Chris@2 167 If distribution of executable or object code is made by offering
Chris@2 168 access to copy from a designated place, then offering equivalent
Chris@2 169 access to copy the source code from the same place counts as
Chris@2 170 distribution of the source code, even though third parties are not
Chris@2 171 compelled to copy the source along with the object code.
Chris@2 172
Chris@2 173 4. You may not copy, modify, sublicense, or distribute the Program
Chris@2 174 except as expressly provided under this License. Any attempt
Chris@2 175 otherwise to copy, modify, sublicense or distribute the Program is
Chris@2 176 void, and will automatically terminate your rights under this License.
Chris@2 177 However, parties who have received copies, or rights, from you under
Chris@2 178 this License will not have their licenses terminated so long as such
Chris@2 179 parties remain in full compliance.
Chris@2 180
Chris@2 181 5. You are not required to accept this License, since you have not
Chris@2 182 signed it. However, nothing else grants you permission to modify or
Chris@2 183 distribute the Program or its derivative works. These actions are
Chris@2 184 prohibited by law if you do not accept this License. Therefore, by
Chris@2 185 modifying or distributing the Program (or any work based on the
Chris@2 186 Program), you indicate your acceptance of this License to do so, and
Chris@2 187 all its terms and conditions for copying, distributing or modifying
Chris@2 188 the Program or works based on it.
Chris@2 189
Chris@2 190 6. Each time you redistribute the Program (or any work based on the
Chris@2 191 Program), the recipient automatically receives a license from the
Chris@2 192 original licensor to copy, distribute or modify the Program subject to
Chris@2 193 these terms and conditions. You may not impose any further
Chris@2 194 restrictions on the recipients' exercise of the rights granted herein.
Chris@2 195 You are not responsible for enforcing compliance by third parties to
Chris@2 196 this License.
Chris@2 197
Chris@2 198 7. If, as a consequence of a court judgment or allegation of patent
Chris@2 199 infringement or for any other reason (not limited to patent issues),
Chris@2 200 conditions are imposed on you (whether by court order, agreement or
Chris@2 201 otherwise) that contradict the conditions of this License, they do not
Chris@2 202 excuse you from the conditions of this License. If you cannot
Chris@2 203 distribute so as to satisfy simultaneously your obligations under this
Chris@2 204 License and any other pertinent obligations, then as a consequence you
Chris@2 205 may not distribute the Program at all. For example, if a patent
Chris@2 206 license would not permit royalty-free redistribution of the Program by
Chris@2 207 all those who receive copies directly or indirectly through you, then
Chris@2 208 the only way you could satisfy both it and this License would be to
Chris@2 209 refrain entirely from distribution of the Program.
Chris@2 210
Chris@2 211 If any portion of this section is held invalid or unenforceable under
Chris@2 212 any particular circumstance, the balance of the section is intended to
Chris@2 213 apply and the section as a whole is intended to apply in other
Chris@2 214 circumstances.
Chris@2 215
Chris@2 216 It is not the purpose of this section to induce you to infringe any
Chris@2 217 patents or other property right claims or to contest validity of any
Chris@2 218 such claims; this section has the sole purpose of protecting the
Chris@2 219 integrity of the free software distribution system, which is
Chris@2 220 implemented by public license practices. Many people have made
Chris@2 221 generous contributions to the wide range of software distributed
Chris@2 222 through that system in reliance on consistent application of that
Chris@2 223 system; it is up to the author/donor to decide if he or she is willing
Chris@2 224 to distribute software through any other system and a licensee cannot
Chris@2 225 impose that choice.
Chris@2 226
Chris@2 227 This section is intended to make thoroughly clear what is believed to
Chris@2 228 be a consequence of the rest of this License.
Chris@2 229
Chris@2 230 8. If the distribution and/or use of the Program is restricted in
Chris@2 231 certain countries either by patents or by copyrighted interfaces, the
Chris@2 232 original copyright holder who places the Program under this License
Chris@2 233 may add an explicit geographical distribution limitation excluding
Chris@2 234 those countries, so that distribution is permitted only in or among
Chris@2 235 countries not thus excluded. In such case, this License incorporates
Chris@2 236 the limitation as if written in the body of this License.
Chris@2 237
Chris@2 238 9. The Free Software Foundation may publish revised and/or new versions
Chris@2 239 of the General Public License from time to time. Such new versions will
Chris@2 240 be similar in spirit to the present version, but may differ in detail to
Chris@2 241 address new problems or concerns.
Chris@2 242
Chris@2 243 Each version is given a distinguishing version number. If the Program
Chris@2 244 specifies a version number of this License which applies to it and "any
Chris@2 245 later version", you have the option of following the terms and conditions
Chris@2 246 either of that version or of any later version published by the Free
Chris@2 247 Software Foundation. If the Program does not specify a version number of
Chris@2 248 this License, you may choose any version ever published by the Free Software
Chris@2 249 Foundation.
Chris@2 250
Chris@2 251 10. If you wish to incorporate parts of the Program into other free
Chris@2 252 programs whose distribution conditions are different, write to the author
Chris@2 253 to ask for permission. For software which is copyrighted by the Free
Chris@2 254 Software Foundation, write to the Free Software Foundation; we sometimes
Chris@2 255 make exceptions for this. Our decision will be guided by the two goals
Chris@2 256 of preserving the free status of all derivatives of our free software and
Chris@2 257 of promoting the sharing and reuse of software generally.
Chris@2 258
Chris@2 259 NO WARRANTY
Chris@2 260
Chris@2 261 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
Chris@2 262 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
Chris@2 263 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
Chris@2 264 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
Chris@2 265 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
Chris@2 266 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
Chris@2 267 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
Chris@2 268 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
Chris@2 269 REPAIR OR CORRECTION.
Chris@2 270
Chris@2 271 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
Chris@2 272 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
Chris@2 273 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
Chris@2 274 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
Chris@2 275 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
Chris@2 276 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
Chris@2 277 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
Chris@2 278 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
Chris@2 279 POSSIBILITY OF SUCH DAMAGES.
Chris@2 280
Chris@2 281 END OF TERMS AND CONDITIONS