0
+ − 1 GNU LIBRARY GENERAL PUBLIC LICENSE
+ − 2 Version 2, June 1991
+ − 3
+ − 4 Copyright (C) 1991 Free Software Foundation, Inc.
+ − 5 59 Temple Place - Suite 330
+ − 6 Boston, MA 02111-1307, USA.
+ − 7 Everyone is permitted to copy and distribute verbatim copies
+ − 8 of this license document, but changing it is not allowed.
+ − 9
+ − 10 [This is the first released version of the library GPL. It is
+ − 11 numbered 2 because it goes with version 2 of the ordinary GPL.]
+ − 12
+ − 13 Preamble
+ − 14
+ − 15 The licenses for most software are designed to take away your
+ − 16 freedom to share and change it. By contrast, the GNU General Public
+ − 17 Licenses are intended to guarantee your freedom to share and change
+ − 18 free software--to make sure the software is free for all its users.
+ − 19
+ − 20 This license, the Library General Public License, applies to some
+ − 21 specially designated Free Software Foundation software, and to any
+ − 22 other libraries whose authors decide to use it. You can use it for
+ − 23 your libraries, too.
+ − 24
+ − 25 When we speak of free software, we are referring to freedom, not
+ − 26 price. Our General Public Licenses are designed to make sure that you
+ − 27 have the freedom to distribute copies of free software (and charge for
+ − 28 this service if you wish), that you receive source code or can get it
+ − 29 if you want it, that you can change the software or use pieces of it
+ − 30 in new free programs; and that you know you can do these things.
+ − 31
+ − 32 To protect your rights, we need to make restrictions that forbid
+ − 33 anyone to deny you these rights or to ask you to surrender the rights.
+ − 34 These restrictions translate to certain responsibilities for you if
+ − 35 you distribute copies of the library, or if you modify it.
+ − 36
+ − 37 For example, if you distribute copies of the library, whether gratis
+ − 38 or for a fee, you must give the recipients all the rights that we gave
+ − 39 you. You must make sure that they, too, receive or can get the source
+ − 40 code. If you link a program with the library, you must provide
+ − 41 complete object files to the recipients so that they can relink them
+ − 42 with the library, after making changes to the library and recompiling
+ − 43 it. And you must show them these terms so they know their rights.
+ − 44
+ − 45 Our method of protecting your rights has two steps: (1) copyright
+ − 46 the library, and (2) offer you this license which gives you legal
+ − 47 permission to copy, distribute and/or modify the library.
+ − 48
+ − 49 Also, for each distributor's protection, we want to make certain
+ − 50 that everyone understands that there is no warranty for this free
+ − 51 library. If the library is modified by someone else and passed on, we
+ − 52 want its recipients to know that what they have is not the original
+ − 53 version, so that any problems introduced by others will not reflect on
+ − 54 the original authors' reputations.
+ − 55
+ − 56 Finally, any free program is threatened constantly by software
+ − 57 patents. We wish to avoid the danger that companies distributing free
+ − 58 software will individually obtain patent licenses, thus in effect
+ − 59 transforming the program into proprietary software. To prevent this,
+ − 60 we have made it clear that any patent must be licensed for everyone's
+ − 61 free use or not licensed at all.
+ − 62
+ − 63 Most GNU software, including some libraries, is covered by the ordinary
+ − 64 GNU General Public License, which was designed for utility programs. This
+ − 65 license, the GNU Library General Public License, applies to certain
+ − 66 designated libraries. This license is quite different from the ordinary
+ − 67 one; be sure to read it in full, and don't assume that anything in it is
+ − 68 the same as in the ordinary license.
+ − 69
+ − 70 The reason we have a separate public license for some libraries is that
+ − 71 they blur the distinction we usually make between modifying or adding to a
+ − 72 program and simply using it. Linking a program with a library, without
+ − 73 changing the library, is in some sense simply using the library, and is
+ − 74 analogous to running a utility program or application program. However, in
+ − 75 a textual and legal sense, the linked executable is a combined work, a
+ − 76 derivative of the original library, and the ordinary General Public License
+ − 77 treats it as such.
+ − 78
+ − 79 Because of this blurred distinction, using the ordinary General
+ − 80 Public License for libraries did not effectively promote software
+ − 81 sharing, because most developers did not use the libraries. We
+ − 82 concluded that weaker conditions might promote sharing better.
+ − 83
+ − 84 However, unrestricted linking of non-free programs would deprive the
+ − 85 users of those programs of all benefit from the free status of the
+ − 86 libraries themselves. This Library General Public License is intended to
+ − 87 permit developers of non-free programs to use free libraries, while
+ − 88 preserving your freedom as a user of such programs to change the free
+ − 89 libraries that are incorporated in them. (We have not seen how to achieve
+ − 90 this as regards changes in header files, but we have achieved it as regards
+ − 91 changes in the actual functions of the Library.) The hope is that this
+ − 92 will lead to faster development of free libraries.
+ − 93
+ − 94 The precise terms and conditions for copying, distribution and
+ − 95 modification follow. Pay close attention to the difference between a
+ − 96 "work based on the library" and a "work that uses the library". The
+ − 97 former contains code derived from the library, while the latter only
+ − 98 works together with the library.
+ − 99
+ − 100 Note that it is possible for a library to be covered by the ordinary
+ − 101 General Public License rather than by this special one.
+ − 102
+ − 103 GNU LIBRARY GENERAL PUBLIC LICENSE
+ − 104 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+ − 105
+ − 106 0. This License Agreement applies to any software library which
+ − 107 contains a notice placed by the copyright holder or other authorized
+ − 108 party saying it may be distributed under the terms of this Library
+ − 109 General Public License (also called "this License"). Each licensee is
+ − 110 addressed as "you".
+ − 111
+ − 112 A "library" means a collection of software functions and/or data
+ − 113 prepared so as to be conveniently linked with application programs
+ − 114 (which use some of those functions and data) to form executables.
+ − 115
+ − 116 The "Library", below, refers to any such software library or work
+ − 117 which has been distributed under these terms. A "work based on the
+ − 118 Library" means either the Library or any derivative work under
+ − 119 copyright law: that is to say, a work containing the Library or a
+ − 120 portion of it, either verbatim or with modifications and/or translated
+ − 121 straightforwardly into another language. (Hereinafter, translation is
+ − 122 included without limitation in the term "modification".)
+ − 123
+ − 124 "Source code" for a work means the preferred form of the work for
+ − 125 making modifications to it. For a library, complete source code means
+ − 126 all the source code for all modules it contains, plus any associated
+ − 127 interface definition files, plus the scripts used to control compilation
+ − 128 and installation of the library.
+ − 129
+ − 130 Activities other than copying, distribution and modification are not
+ − 131 covered by this License; they are outside its scope. The act of
+ − 132 running a program using the Library is not restricted, and output from
+ − 133 such a program is covered only if its contents constitute a work based
+ − 134 on the Library (independent of the use of the Library in a tool for
+ − 135 writing it). Whether that is true depends on what the Library does
+ − 136 and what the program that uses the Library does.
+ − 137
+ − 138 1. You may copy and distribute verbatim copies of the Library's
+ − 139 complete source code as you receive it, in any medium, provided that
+ − 140 you conspicuously and appropriately publish on each copy an
+ − 141 appropriate copyright notice and disclaimer of warranty; keep intact
+ − 142 all the notices that refer to this License and to the absence of any
+ − 143 warranty; and distribute a copy of this License along with the
+ − 144 Library.
+ − 145
+ − 146 You may charge a fee for the physical act of transferring a copy,
+ − 147 and you may at your option offer warranty protection in exchange for a
+ − 148 fee.
+ − 149
+ − 150 2. You may modify your copy or copies of the Library or any portion
+ − 151 of it, thus forming a work based on the Library, and copy and
+ − 152 distribute such modifications or work under the terms of Section 1
+ − 153 above, provided that you also meet all of these conditions:
+ − 154
+ − 155 a) The modified work must itself be a software library.
+ − 156
+ − 157 b) You must cause the files modified to carry prominent notices
+ − 158 stating that you changed the files and the date of any change.
+ − 159
+ − 160 c) You must cause the whole of the work to be licensed at no
+ − 161 charge to all third parties under the terms of this License.
+ − 162
+ − 163 d) If a facility in the modified Library refers to a function or a
+ − 164 table of data to be supplied by an application program that uses
+ − 165 the facility, other than as an argument passed when the facility
+ − 166 is invoked, then you must make a good faith effort to ensure that,
+ − 167 in the event an application does not supply such function or
+ − 168 table, the facility still operates, and performs whatever part of
+ − 169 its purpose remains meaningful.
+ − 170
+ − 171 (For example, a function in a library to compute square roots has
+ − 172 a purpose that is entirely well-defined independent of the
+ − 173 application. Therefore, Subsection 2d requires that any
+ − 174 application-supplied function or table used by this function must
+ − 175 be optional: if the application does not supply it, the square
+ − 176 root function must still compute square roots.)
+ − 177
+ − 178 These requirements apply to the modified work as a whole. If
+ − 179 identifiable sections of that work are not derived from the Library,
+ − 180 and can be reasonably considered independent and separate works in
+ − 181 themselves, then this License, and its terms, do not apply to those
+ − 182 sections when you distribute them as separate works. But when you
+ − 183 distribute the same sections as part of a whole which is a work based
+ − 184 on the Library, the distribution of the whole must be on the terms of
+ − 185 this License, whose permissions for other licensees extend to the
+ − 186 entire whole, and thus to each and every part regardless of who wrote
+ − 187 it.
+ − 188
+ − 189 Thus, it is not the intent of this section to claim rights or contest
+ − 190 your rights to work written entirely by you; rather, the intent is to
+ − 191 exercise the right to control the distribution of derivative or
+ − 192 collective works based on the Library.
+ − 193
+ − 194 In addition, mere aggregation of another work not based on the Library
+ − 195 with the Library (or with a work based on the Library) on a volume of
+ − 196 a storage or distribution medium does not bring the other work under
+ − 197 the scope of this License.
+ − 198
+ − 199 3. You may opt to apply the terms of the ordinary GNU General Public
+ − 200 License instead of this License to a given copy of the Library. To do
+ − 201 this, you must alter all the notices that refer to this License, so
+ − 202 that they refer to the ordinary GNU General Public License, version 2,
+ − 203 instead of to this License. (If a newer version than version 2 of the
+ − 204 ordinary GNU General Public License has appeared, then you can specify
+ − 205 that version instead if you wish.) Do not make any other change in
+ − 206 these notices.
+ − 207
+ − 208 Once this change is made in a given copy, it is irreversible for
+ − 209 that copy, so the ordinary GNU General Public License applies to all
+ − 210 subsequent copies and derivative works made from that copy.
+ − 211
+ − 212 This option is useful when you wish to copy part of the code of
+ − 213 the Library into a program that is not a library.
+ − 214
+ − 215 4. You may copy and distribute the Library (or a portion or
+ − 216 derivative of it, under Section 2) in object code or executable form
+ − 217 under the terms of Sections 1 and 2 above provided that you accompany
+ − 218 it with the complete corresponding machine-readable source code, which
+ − 219 must be distributed under the terms of Sections 1 and 2 above on a
+ − 220 medium customarily used for software interchange.
+ − 221
+ − 222 If distribution of object code is made by offering access to copy
+ − 223 from a designated place, then offering equivalent access to copy the
+ − 224 source code from the same place satisfies the requirement to
+ − 225 distribute the source code, even though third parties are not
+ − 226 compelled to copy the source along with the object code.
+ − 227
+ − 228 5. A program that contains no derivative of any portion of the
+ − 229 Library, but is designed to work with the Library by being compiled or
+ − 230 linked with it, is called a "work that uses the Library". Such a
+ − 231 work, in isolation, is not a derivative work of the Library, and
+ − 232 therefore falls outside the scope of this License.
+ − 233
+ − 234 However, linking a "work that uses the Library" with the Library
+ − 235 creates an executable that is a derivative of the Library (because it
+ − 236 contains portions of the Library), rather than a "work that uses the
+ − 237 library". The executable is therefore covered by this License.
+ − 238 Section 6 states terms for distribution of such executables.
+ − 239
+ − 240 When a "work that uses the Library" uses material from a header file
+ − 241 that is part of the Library, the object code for the work may be a
+ − 242 derivative work of the Library even though the source code is not.
+ − 243 Whether this is true is especially significant if the work can be
+ − 244 linked without the Library, or if the work is itself a library. The
+ − 245 threshold for this to be true is not precisely defined by law.
+ − 246
+ − 247 If such an object file uses only numerical parameters, data
+ − 248 structure layouts and accessors, and small macros and small inline
+ − 249 functions (ten lines or less in length), then the use of the object
+ − 250 file is unrestricted, regardless of whether it is legally a derivative
+ − 251 work. (Executables containing this object code plus portions of the
+ − 252 Library will still fall under Section 6.)
+ − 253
+ − 254 Otherwise, if the work is a derivative of the Library, you may
+ − 255 distribute the object code for the work under the terms of Section 6.
+ − 256 Any executables containing that work also fall under Section 6,
+ − 257 whether or not they are linked directly with the Library itself.
+ − 258
+ − 259 6. As an exception to the Sections above, you may also compile or
+ − 260 link a "work that uses the Library" with the Library to produce a
+ − 261 work containing portions of the Library, and distribute that work
+ − 262 under terms of your choice, provided that the terms permit
+ − 263 modification of the work for the customer's own use and reverse
+ − 264 engineering for debugging such modifications.
+ − 265
+ − 266 You must give prominent notice with each copy of the work that the
+ − 267 Library is used in it and that the Library and its use are covered by
+ − 268 this License. You must supply a copy of this License. If the work
+ − 269 during execution displays copyright notices, you must include the
+ − 270 copyright notice for the Library among them, as well as a reference
+ − 271 directing the user to the copy of this License. Also, you must do one
+ − 272 of these things:
+ − 273
+ − 274 a) Accompany the work with the complete corresponding
+ − 275 machine-readable source code for the Library including whatever
+ − 276 changes were used in the work (which must be distributed under
+ − 277 Sections 1 and 2 above); and, if the work is an executable linked
+ − 278 with the Library, with the complete machine-readable "work that
+ − 279 uses the Library", as object code and/or source code, so that the
+ − 280 user can modify the Library and then relink to produce a modified
+ − 281 executable containing the modified Library. (It is understood
+ − 282 that the user who changes the contents of definitions files in the
+ − 283 Library will not necessarily be able to recompile the application
+ − 284 to use the modified definitions.)
+ − 285
+ − 286 b) Accompany the work with a written offer, valid for at
+ − 287 least three years, to give the same user the materials
+ − 288 specified in Subsection 6a, above, for a charge no more
+ − 289 than the cost of performing this distribution.
+ − 290
+ − 291 c) If distribution of the work is made by offering access to copy
+ − 292 from a designated place, offer equivalent access to copy the above
+ − 293 specified materials from the same place.
+ − 294
+ − 295 d) Verify that the user has already received a copy of these
+ − 296 materials or that you have already sent this user a copy.
+ − 297
+ − 298 For an executable, the required form of the "work that uses the
+ − 299 Library" must include any data and utility programs needed for
+ − 300 reproducing the executable from it. However, as a special exception,
+ − 301 the source code distributed need not include anything that is normally
+ − 302 distributed (in either source or binary form) with the major
+ − 303 components (compiler, kernel, and so on) of the operating system on
+ − 304 which the executable runs, unless that component itself accompanies
+ − 305 the executable.
+ − 306
+ − 307 It may happen that this requirement contradicts the license
+ − 308 restrictions of other proprietary libraries that do not normally
+ − 309 accompany the operating system. Such a contradiction means you cannot
+ − 310 use both them and the Library together in an executable that you
+ − 311 distribute.
+ − 312
+ − 313 7. You may place library facilities that are a work based on the
+ − 314 Library side-by-side in a single library together with other library
+ − 315 facilities not covered by this License, and distribute such a combined
+ − 316 library, provided that the separate distribution of the work based on
+ − 317 the Library and of the other library facilities is otherwise
+ − 318 permitted, and provided that you do these two things:
+ − 319
+ − 320 a) Accompany the combined library with a copy of the same work
+ − 321 based on the Library, uncombined with any other library
+ − 322 facilities. This must be distributed under the terms of the
+ − 323 Sections above.
+ − 324
+ − 325 b) Give prominent notice with the combined library of the fact
+ − 326 that part of it is a work based on the Library, and explaining
+ − 327 where to find the accompanying uncombined form of the same work.
+ − 328
+ − 329 8. You may not copy, modify, sublicense, link with, or distribute
+ − 330 the Library except as expressly provided under this License. Any
+ − 331 attempt otherwise to copy, modify, sublicense, link with, or
+ − 332 distribute the Library is void, and will automatically terminate your
+ − 333 rights under this License. However, parties who have received copies,
+ − 334 or rights, from you under this License will not have their licenses
+ − 335 terminated so long as such parties remain in full compliance.
+ − 336
+ − 337 9. You are not required to accept this License, since you have not
+ − 338 signed it. However, nothing else grants you permission to modify or
+ − 339 distribute the Library or its derivative works. These actions are
+ − 340 prohibited by law if you do not accept this License. Therefore, by
+ − 341 modifying or distributing the Library (or any work based on the
+ − 342 Library), you indicate your acceptance of this License to do so, and
+ − 343 all its terms and conditions for copying, distributing or modifying
+ − 344 the Library or works based on it.
+ − 345
+ − 346 10. Each time you redistribute the Library (or any work based on the
+ − 347 Library), the recipient automatically receives a license from the
+ − 348 original licensor to copy, distribute, link with or modify the Library
+ − 349 subject to these terms and conditions. You may not impose any further
+ − 350 restrictions on the recipients' exercise of the rights granted herein.
+ − 351 You are not responsible for enforcing compliance by third parties to
+ − 352 this License.
+ − 353
+ − 354 11. If, as a consequence of a court judgment or allegation of patent
+ − 355 infringement or for any other reason (not limited to patent issues),
+ − 356 conditions are imposed on you (whether by court order, agreement or
+ − 357 otherwise) that contradict the conditions of this License, they do not
+ − 358 excuse you from the conditions of this License. If you cannot
+ − 359 distribute so as to satisfy simultaneously your obligations under this
+ − 360 License and any other pertinent obligations, then as a consequence you
+ − 361 may not distribute the Library at all. For example, if a patent
+ − 362 license would not permit royalty-free redistribution of the Library by
+ − 363 all those who receive copies directly or indirectly through you, then
+ − 364 the only way you could satisfy both it and this License would be to
+ − 365 refrain entirely from distribution of the Library.
+ − 366
+ − 367 If any portion of this section is held invalid or unenforceable under any
+ − 368 particular circumstance, the balance of the section is intended to apply,
+ − 369 and the section as a whole is intended to apply in other circumstances.
+ − 370
+ − 371 It is not the purpose of this section to induce you to infringe any
+ − 372 patents or other property right claims or to contest validity of any
+ − 373 such claims; this section has the sole purpose of protecting the
+ − 374 integrity of the free software distribution system which is
+ − 375 implemented by public license practices. Many people have made
+ − 376 generous contributions to the wide range of software distributed
+ − 377 through that system in reliance on consistent application of that
+ − 378 system; it is up to the author/donor to decide if he or she is willing
+ − 379 to distribute software through any other system and a licensee cannot
+ − 380 impose that choice.
+ − 381
+ − 382 This section is intended to make thoroughly clear what is believed to
+ − 383 be a consequence of the rest of this License.
+ − 384
+ − 385 12. If the distribution and/or use of the Library is restricted in
+ − 386 certain countries either by patents or by copyrighted interfaces, the
+ − 387 original copyright holder who places the Library under this License may add
+ − 388 an explicit geographical distribution limitation excluding those countries,
+ − 389 so that distribution is permitted only in or among countries not thus
+ − 390 excluded. In such case, this License incorporates the limitation as if
+ − 391 written in the body of this License.
+ − 392
+ − 393 13. The Free Software Foundation may publish revised and/or new
+ − 394 versions of the Library General Public License from time to time.
+ − 395 Such new versions will be similar in spirit to the present version,
+ − 396 but may differ in detail to address new problems or concerns.
+ − 397
+ − 398 Each version is given a distinguishing version number. If the Library
+ − 399 specifies a version number of this License which applies to it and
+ − 400 "any later version", you have the option of following the terms and
+ − 401 conditions either of that version or of any later version published by
+ − 402 the Free Software Foundation. If the Library does not specify a
+ − 403 license version number, you may choose any version ever published by
+ − 404 the Free Software Foundation.
+ − 405
+ − 406 14. If you wish to incorporate parts of the Library into other free
+ − 407 programs whose distribution conditions are incompatible with these,
+ − 408 write to the author to ask for permission. For software which is
+ − 409 copyrighted by the Free Software Foundation, write to the Free
+ − 410 Software Foundation; we sometimes make exceptions for this. Our
+ − 411 decision will be guided by the two goals of preserving the free status
+ − 412 of all derivatives of our free software and of promoting the sharing
+ − 413 and reuse of software generally.
+ − 414
+ − 415 NO WARRANTY
+ − 416
+ − 417 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+ − 418 WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+ − 419 EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+ − 420 OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
+ − 421 KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
+ − 422 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ − 423 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
+ − 424 LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+ − 425 THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+ − 426
+ − 427 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
+ − 428 WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
+ − 429 AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
+ − 430 FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
+ − 431 CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
+ − 432 LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
+ − 433 RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
+ − 434 FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+ − 435 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ − 436 DAMAGES.
+ − 437
+ − 438 END OF TERMS AND CONDITIONS
+ − 439
+ − 440 Appendix: How to Apply These Terms to Your New Libraries
+ − 441
+ − 442 If you develop a new library, and you want it to be of the greatest
+ − 443 possible use to the public, we recommend making it free software that
+ − 444 everyone can redistribute and change. You can do so by permitting
+ − 445 redistribution under these terms (or, alternatively, under the terms of the
+ − 446 ordinary General Public License).
+ − 447
+ − 448 To apply these terms, attach the following notices to the library. It is
+ − 449 safest to attach them to the start of each source file to most effectively
+ − 450 convey the exclusion of warranty; and each file should have at least the
+ − 451 "copyright" line and a pointer to where the full notice is found.
+ − 452
+ − 453 <one line to give the library's name and a brief idea of what it does.>
+ − 454 Copyright (C) <year> <name of author>
+ − 455
+ − 456 This library is free software; you can redistribute it and/or
+ − 457 modify it under the terms of the GNU Library General Public
+ − 458 License as published by the Free Software Foundation; either
+ − 459 version 2 of the License, or (at your option) any later version.
+ − 460
+ − 461 This library is distributed in the hope that it will be useful,
+ − 462 but WITHOUT ANY WARRANTY; without even the implied warranty of
+ − 463 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ − 464 Library General Public License for more details.
+ − 465
+ − 466 You should have received a copy of the GNU General Public License
+ − 467 along with this library; see the file COPYING. If not, write to
+ − 468 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ − 469 Boston, MA 02111-1307, USA.
+ − 470
+ − 471 Also add information on how to contact you by electronic and paper mail.
+ − 472
+ − 473 You should also get your employer (if you work as a programmer) or your
+ − 474 school, if any, to sign a "copyright disclaimer" for the library, if
+ − 475 necessary. Here is a sample; alter the names:
+ − 476
+ − 477 Yoyodyne, Inc., hereby disclaims all copyright interest in the
+ − 478 library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+ − 479
+ − 480 <signature of Ty Coon>, 1 April 1990
+ − 481 Ty Coon, President of Vice
+ − 482
+ − 483 That's all there is to it!