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   9 <H1 CLASS="title">Software License Agreement</H1>
  10
  11 <P ALIGN="CENTER">Copyright 2007-2011 by Apple Inc.<BR>
  12 1 Infinite Loop<BR>
  13 Cupertino, CA 95014 USA<BR>
  14 <BR>
  15 WWW: <A HREF="http://www.cups.org/">http://www.cups.org/</A>
  16
  17 <H2 CLASS="title"><A NAME="INTRO">Introduction</A></H2>
  18
  19 <P>CUPS<SUP>TM</SUP> is provided under the GNU General Public License ("GPL")
  20 and GNU Library General Public License ("LGPL"), Version 2, with exceptions for
  21 Apple operating systems and the OpenSSL toolkit. A copy of the exceptions and
  22 licenses follow this introduction.</P>
  23
  24 <P>The GNU LGPL applies to the CUPS and CUPS Imaging libraries located in the
  25 "cups" and "filter" subdirectories of the CUPS source distribution and the files
  26 in the "test" subdirectory. The GNU GPL applies to the remainder of the CUPS
  27 distribution.</P>
  28
  29 <P>For those not familiar with the GNU GPL, the license basically
  30 allows you to:</P>
  31
  32 <UL>
  33
  34         <LI>Use the CUPS software at no charge.</LI>
  35
  36         <LI>Distribute verbatim copies of the software in source
  37         or binary form.</LI>
  38
  39         <LI>Sell verbatim copies of the software for a media
  40         fee, or sell support for the software.</LI>
  41
  42 </UL>
  43
  44 <P>What this license <EM>does not</EM> allow you to do is make
  45 changes or add features to CUPS and then sell a binary
  46 distribution without source code. You must provide source for any
  47 changes or additions to the software, and all code must be
  48 provided under the GPL or LGPL as appropriate. The only
  49 exceptions to this are the portions of the CUPS software covered
  50 by the Apple operating system license exceptions outlined later
  51 in this license agreement.</P>
  52
  53 <P>The GNU LGPL relaxes the "link-to" restriction, allowing you
  54 to develop applications that use the CUPS and CUPS Imaging
  55 libraries under other licenses and/or conditions as appropriate
  56 for your application, driver, or filter.</P>
  57
  58
  59 <H2 CLASS="title"><A NAME="EXCEPTIONS">License Exceptions</A></H2>
  60
  61 <P>In addition, as the copyright holder of CUPS, Apple Inc. grants
  62 the following special exceptions:</P>
  63
  64 <OL>
  65
  66         <LI><B>Apple Operating System Development License
  67         Exception</B>;
  68
  69         <OL TYPE="a">
  70
  71                 <LI>Software that is developed by any person or
  72                 entity for an Apple Operating System ("Apple
  73                 OS-Developed Software"), including but not
  74                 limited to Apple and third party printer
  75                 drivers, filters, and backends for an Apple
  76                 Operating System, that is linked to the CUPS
  77                 imaging library or based on any sample filters
  78                 or backends provided with CUPS shall not be
  79                 considered to be a derivative work or collective
  80                 work based on the CUPS program and is exempt
  81                 from the mandatory source code release clauses
  82                 of the GNU GPL. You may therefore distribute
  83                 linked combinations of the CUPS imaging library
  84                 with Apple OS-Developed Software without
  85                 releasing the source code of the Apple
  86                 OS-Developed Software. You may also use sample
  87                 filters and backends provided with CUPS to
  88                 develop Apple OS-Developed Software without
  89                 releasing the source code of the Apple
  90                 OS-Developed Software.</LI>
  91
  92                 <LI>An Apple Operating System means any
  93                 operating system software developed and/or
  94                 marketed by Apple Computer, Inc., including but
  95                 not limited to all existing releases and
  96                 versions of Apple's Darwin, Mac OS X, and Mac OS
  97                 X Server products and all follow-on releases and
  98                 future versions thereof.</LI>
  99
 100                 <LI>This exception is only available for Apple
 101                 OS-Developed Software and does not apply to
 102                 software that is distributed for use on other
 103                 operating systems.</LI>
 104
 105                 <LI>All CUPS software that falls under this
 106                 license exception have the following text at the
 107                 top of each source file:
 108
 109                 <BLOCKQUOTE>This file is subject to the Apple
 110                 OS-Developed Software
 111                 exception.</BLOCKQUOTE></LI>
 112
 113         </OL>
 114
 115         <LI><B>OpenSSL Toolkit License Exception</B>;
 116
 117         <OL TYPE="a">
 118
 119                 <LI>Apple Inc. explicitly allows the
 120                 compilation and distribution of the CUPS
 121                 software with the OpenSSL Toolkit.</LI>
 122
 123         </OL>
 124
 125 </OL>
 126
 127 <P>No developer is required to provide these exceptions in a
 128 derived work.</P>
 129
 130
 131 <H2 CLASS="title"><A NAME="KERBEROS">Kerberos Support Code</A></H2>
 132
 133 <P>The Kerberos support code ("KSC") is copyright 2006 by Jelmer
 134 Vernooij and is provided 'as-is', without any express or implied
 135 warranty. In no event will the author or Apple Inc. be held liable
 136 for any damages arising from the use of the KSC.</P>
 137
 138 <P>Sources files containing KSC have the following text at the top
 139 of each source file:</P>
 140
 141 <BLOCKQUOTE>This file contains Kerberos support code, copyright
 142 2006 by Jelmer Vernooij.</BLOCKQUOTE>
 143
 144 <P>The KSC copyright and license apply <EM>only</EM> to
 145 Kerberos-related feature code in CUPS. Such code is typically
 146 conditionally compiled based on the present of the
 147 <TT>HAVE_GSSAPI</TT> preprocessor definition.</P>
 148
 149 <P>Permission is granted to anyone to use the KSC for any
 150 purpose, including commercial applications, and to alter it and
 151 redistribute it freely, subject to the following
 152 restrictions:</P>
 153
 154 <OL>
 155
 156         <LI>The origin of the KSC must not be misrepresented; you
 157         must not claim that you wrote the original software. If
 158         you use the KSC in a product, an acknowledgment in the
 159         product documentation would be appreciated but is not
 160         required.</LI>
 161
 162         <LI>Altered source versions must be plainly marked as
 163         such, and must not be misrepresented as being the
 164         original software.</LI>
 165
 166         <LI>This notice may not be removed or altered from any
 167         source distribution.</LI>
 168
 169 </OL>
 170
 171
 172 <H2 CLASS="title"><A NAME="TRADEMARKS">Trademarks</A></H2>
 173
 174 <P>CUPS and the CUPS logo (the "CUPS Marks") are trademarks of Apple Inc. Apple
 175 grants you a non-exclusive and non-transferable right to use the CUPS Marks in
 176 any direct port or binary distribution incorporating CUPS software and in any
 177 promotional material therefor. You agree that your products will meet the
 178 highest levels of quality and integrity for similar goods, not be unlawful, and
 179 be developed, manufactured, and distributed in compliance with this license.
 180 You will not interfere with Apple's rights in the CUPS Marks, and all use of the
 181 CUPS Marks shall inure to the benefit of Apple. This license does not apply to
 182 use of the CUPS Marks in a derivative products, which requires prior written
 183 permission from Apple Inc.</P>
 184
 185
 186 <H2 CLASS="title"><A NAME="GPL">GNU GENERAL PUBLIC LICENSE</A></H2>
 187
 188 <P>Version 2, June 1991
 189
 190 <PRE>
 191 Copyright 1989, 1991 Free Software Foundation, Inc.
 192 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 193
 194 Everyone is permitted to copy and distribute verbatim
 195 copies of this license document, but changing it is not allowed.
 196 </PRE>
 197
 198 <H3>Preamble</H3>
 199
 200 <P>The licenses for most software are designed to take away your
 201 freedom to share and change it.  By contrast, the GNU General Public
 202 License is intended to guarantee your freedom to share and change free
 203 software--to make sure the software is free for all its users.  This
 204 General Public License applies to most of the Free Software
 205 Foundation's software and to any other program whose authors commit to
 206 using it.  (Some other Free Software Foundation software is covered by
 207 the GNU Library General Public License instead.)  You can apply it to
 208 your programs, too.
 209
 210 <P>When we speak of free software, we are referring to freedom, not
 211 price.  Our General Public Licenses are designed to make sure that you
 212 have the freedom to distribute copies of free software (and charge for
 213 this service if you wish), that you receive source code or can get it
 214 if you want it, that you can change the software or use pieces of it
 215 in new free programs; and that you know you can do these things.
 216
 217 <P>To protect your rights, we need to make restrictions that forbid
 218 anyone to deny you these rights or to ask you to surrender the rights.
 219 These restrictions translate to certain responsibilities for you if you
 220 distribute copies of the software, or if you modify it.
 221
 222 <P>For example, if you distribute copies of such a program, whether
 223 gratis or for a fee, you must give the recipients all the rights that
 224 you have.  You must make sure that they, too, receive or can get the
 225 source code.  And you must show them these terms so they know their
 226 rights.
 227
 228 <P>We protect your rights with two steps: (1) copyright the software, and
 229 (2) offer you this license which gives you legal permission to copy,
 230 distribute and/or modify the software.
 231
 232 <P>Also, for each author's protection and ours, we want to make certain
 233 that everyone understands that there is no warranty for this free
 234 software.  If the software is modified by someone else and passed on, we
 235 want its recipients to know that what they have is not the original, so
 236 that any problems introduced by others will not reflect on the original
 237 authors' reputations.
 238
 239 <P>Finally, any free program is threatened constantly by software
 240 patents.  We wish to avoid the danger that redistributors of a free
 241 program will individually obtain patent licenses, in effect making the
 242 program proprietary.  To prevent this, we have made it clear that any
 243 patent must be licensed for everyone's free use or not licensed at all.
 244
 245 <P>The precise terms and conditions for copying, distribution and
 246 modification follow.
 247
 248 <H3>GNU GENERAL PUBLIC LICENSE<BR>
 249 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</H3>
 250
 251 <OL START="0">
 252
 253 <LI>This License applies to any program or other work which contains
 254 a notice placed by the copyright holder saying it may be distributed
 255 under the terms of this General Public License.  The "Program", below,
 256 refers to any such program or work, and a "work based on the Program"
 257 means either the Program or any derivative work under copyright law:
 258 that is to say, a work containing the Program or a portion of it,
 259 either verbatim or with modifications and/or translated into another
 260 language.  (Hereinafter, translation is included without limitation in
 261 the term "modification".)  Each licensee is addressed as "you".
 262
 263 <P>Activities other than copying, distribution and modification are not
 264 covered by this License; they are outside its scope.  The act of
 265 running the Program is not restricted, and the output from the Program
 266 is covered only if its contents constitute a work based on the
 267 Program (independent of having been made by running the Program).
 268 Whether that is true depends on what the Program does.
 269
 270 <LI>You may copy and distribute verbatim copies of the Program's
 271 source code as you receive it, in any medium, provided that you
 272 conspicuously and appropriately publish on each copy an appropriate
 273 copyright notice and disclaimer of warranty; keep intact all the
 274 notices that refer to this License and to the absence of any warranty;
 275 and give any other recipients of the Program a copy of this License
 276 along with the Program.
 277
 278 <P>You may charge a fee for the physical act of transferring a copy, and
 279 you may at your option offer warranty protection in exchange for a fee.
 280
 281 <LI>You may modify your copy or copies of the Program or any portion
 282 of it, thus forming a work based on the Program, and copy and
 283 distribute such modifications or work under the terms of Section 1
 284 above, provided that you also meet all of these conditions:
 285
 286 <OL TYPE="a">
 287
 288 <LI>You must cause the modified files to carry prominent notices
 289 stating that you changed the files and the date of any change.
 290
 291 <LI>You must cause any work that you distribute or publish, that in
 292 whole or in part contains or is derived from the Program or any
 293 part thereof, to be licensed as a whole at no charge to all third
 294 parties under the terms of this License.
 295
 296 <LI>if the modified program normally reads commands interactively
 297 when run, you must cause it, when started running for such
 298 interactive use in the most ordinary way, to print or display an
 299 announcement including an appropriate copyright notice and a
 300 notice that there is no warranty (or else, saying that you provide
 301 a warranty) and that users may redistribute the program under
 302 these conditions, and telling the user how to view a copy of this
 303 License.  (Exception: if the Program itself is interactive but
 304 does not normally print such an announcement, your work based on
 305 the Program is not required to print an announcement.)
 306
 307 </OL>
 308
 309 <P>These requirements apply to the modified work as a whole.  If
 310 identifiable sections of that work are not derived from the Program,
 311 and can be reasonably considered independent and separate works in
 312 themselves, then this License, and its terms, do not apply to those
 313 sections when you distribute them as separate works.  But when you
 314 distribute the same sections as part of a whole which is a work based
 315 on the Program, the distribution of the whole must be on the terms of
 316 this License, whose permissions for other licensees extend to the
 317 entire whole, and thus to each and every part regardless of who wrote it.
 318
 319 <P>Thus, it is not the intent of this section to claim rights or contest
 320 your rights to work written entirely by you; rather, the intent is to
 321 exercise the right to control the distribution of derivative or
 322 collective works based on the Program.
 323
 324 <P>In addition, mere aggregation of another work not based on the Program
 325 with the Program (or with a work based on the Program) on a volume of
 326 a storage or distribution medium does not bring the other work under
 327 the scope of this License.
 328
 329 <LI>You may copy and distribute the Program (or a work based on it,
 330 under Section 2) in object code or executable form under the terms of
 331 Sections 1 and 2 above provided that you also do one of the following:
 332
 333 <OL TYPE="a">
 334
 335 <LI>Accompany it with the complete corresponding machine-readable
 336 source code, which must be distributed under the terms of Sections
 337 1 and 2 above on a medium customarily used for software interchange; or,
 338
 339 <LI>Accompany it with a written offer, valid for at least three
 340 years, to give any third party, for a charge no more than your
 341 cost of physically performing source distribution, a complete
 342 machine-readable copy of the corresponding source code, to be
 343 distributed under the terms of Sections 1 and 2 above on a medium
 344 customarily used for software interchange; or,
 345
 346 <LI>Accompany it with the information you received as to the offer
 347 to distribute corresponding source code.  (This alternative is
 348 allowed only for noncommercial distribution and only if you
 349 received the program in object code or executable form with such
 350 an offer, in accord with Subsection b above.)
 351
 352 </OL>
 353
 354 <P>The source code for a work means the preferred form of the work for
 355 making modifications to it.  For an executable work, complete source
 356 code means all the source code for all modules it contains, plus any
 357 associated interface definition files, plus the scripts used to
 358 control compilation and installation of the executable.  However, as a
 359 special exception, the source code distributed need not include
 360 anything that is normally distributed (in either source or binary
 361 form) with the major components (compiler, kernel, and so on) of the
 362 operating system on which the executable runs, unless that component
 363 itself accompanies the executable.
 364
 365 <P>If distribution of executable or object code is made by offering
 366 access to copy from a designated place, then offering equivalent
 367 access to copy the source code from the same place counts as
 368 distribution of the source code, even though third parties are not
 369 compelled to copy the source along with the object code.
 370
 371 <LI>You may not copy, modify, sublicense, or distribute the Program
 372 except as expressly provided under this License.  Any attempt
 373 otherwise to copy, modify, sublicense or distribute the Program is
 374 void, and will automatically terminate your rights under this License.
 375 However, parties who have received copies, or rights, from you under
 376 this License will not have their licenses terminated so long as such
 377 parties remain in full compliance.
 378
 379 <LI>You are not required to accept this License, since you have not
 380 signed it.  However, nothing else grants you permission to modify or
 381 distribute the Program or its derivative works.  These actions are
 382 prohibited by law if you do not accept this License.  Therefore, by
 383 modifying or distributing the Program (or any work based on the
 384 Program), you indicate your acceptance of this License to do so, and
 385 all its terms and conditions for copying, distributing or modifying
 386 the Program or works based on it.
 387
 388 <LI>Each time you redistribute the Program (or any work based on the
 389 Program), the recipient automatically receives a license from the
 390 original licensor to copy, distribute or modify the Program subject to
 391 these terms and conditions.  You may not impose any further
 392 restrictions on the recipients' exercise of the rights granted herein.
 393 You are not responsible for enforcing compliance by third parties to
 394 this License.
 395
 396 <LI>If, as a consequence of a court judgment or allegation of patent
 397 infringement or for any other reason (not limited to patent issues),
 398 conditions are imposed on you (whether by court order, agreement or
 399 otherwise) that contradict the conditions of this License, they do not
 400 excuse you from the conditions of this License.  If you cannot
 401 distribute so as to satisfy simultaneously your obligations under this
 402 License and any other pertinent obligations, then as a consequence you
 403 may not distribute the Program at all.  For example, if a patent
 404 license would not permit royalty-free redistribution of the Program by
 405 all those who receive copies directly or indirectly through you, then
 406 the only way you could satisfy both it and this License would be to
 407 refrain entirely from distribution of the Program.
 408
 409 <P>If any portion of this section is held invalid or unenforceable under
 410 any particular circumstance, the balance of the section is intended to
 411 apply and the section as a whole is intended to apply in other
 412 circumstances.
 413
 414 <P>It is not the purpose of this section to induce you to infringe any
 415 patents or other property right claims or to contest validity of any
 416 such claims; this section has the sole purpose of protecting the
 417 integrity of the free software distribution system, which is
 418 implemented by public license practices.  Many people have made
 419 generous contributions to the wide range of software distributed
 420 through that system in reliance on consistent application of that
 421 system; it is up to the author/donor to decide if he or she is willing
 422 to distribute software through any other system and a licensee cannot
 423 impose that choice.
 424
 425 <P>This section is intended to make thoroughly clear what is believed to
 426 be a consequence of the rest of this License.
 427
 428 <LI>If the distribution and/or use of the Program is restricted in
 429 certain countries either by patents or by copyrighted interfaces, the
 430 original copyright holder who places the Program under this License
 431 may add an explicit geographical distribution limitation excluding
 432 those countries, so that distribution is permitted only in or among
 433 countries not thus excluded.  In such case, this License incorporates
 434 the limitation as if written in the body of this License.
 435
 436 <LI>The Free Software Foundation may publish revised and/or new versions
 437 of the General Public License from time to time.  Such new versions will
 438 be similar in spirit to the present version, but may differ in detail to
 439 address new problems or concerns.
 440
 441 <P>Each version is given a distinguishing version number.  If the Program
 442 specifies a version number of this License which applies to it and "any
 443 later version", you have the option of following the terms and conditions
 444 either of that version or of any later version published by the Free
 445 Software Foundation.  If the Program does not specify a version number of
 446 this License, you may choose any version ever published by the Free Software
 447 Foundation.
 448
 449 <LI>If you wish to incorporate parts of the Program into other free
 450 programs whose distribution conditions are different, write to the author
 451 to ask for permission.  For software which is copyrighted by the Free
 452 Software Foundation, write to the Free Software Foundation; we sometimes
 453 make exceptions for this.  Our decision will be guided by the two goals
 454 of preserving the free status of all derivatives of our free software and
 455 of promoting the sharing and reuse of software generally.
 456
 457 </OL>
 458
 459 <H3>NO WARRANTY</H3>
 460
 461 <OL START="11">
 462
 463 <LI>BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 464 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
 465 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
 466 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
 467 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 468 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
 469 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
 470 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
 471 REPAIR OR CORRECTION.
 472
 473 <LI>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 474 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
 475 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
 476 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
 477 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
 478 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
 479 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 480 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 481 POSSIBILITY OF SUCH DAMAGES.
 482
 483 </OL>
 484
 485 <H3>END OF TERMS AND CONDITIONS</H3>
 486
 487 <H3>How to Apply These Terms to Your New Programs</H3>
 488
 489 <P>If you develop a new program, and you want it to be of the greatest
 490 possible use to the public, the best way to achieve this is to make it
 491 free software which everyone can redistribute and change under these terms.
 492
 493 <P>To do so, attach the following notices to the program.  It is safest
 494 to attach them to the start of each source file to most effectively
 495 convey the exclusion of warranty; and each file should have at least
 496 the "copyright" line and a pointer to where the full notice is found.
 497
 498 <PRE>
 499 <VAR>one line to give the program's name and an idea of what it does.</VAR>
 500 Copyright (C) <VAR>yyyy</VAR>  <VAR>name of author</VAR>
 501
 502 This program is free software; you can redistribute it and/or
 503 modify it under the terms of the GNU General Public License
 504 as published by the Free Software Foundation; either version 2
 505 of the License, or (at your option) any later version.
 506
 507 This program is distributed in the hope that it will be useful,
 508 but WITHOUT ANY WARRANTY; without even the implied warranty of
 509 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 510 GNU General Public License for more details.
 511
 512 You should have received a copy of the GNU General Public License
 513 along with this program; if not, write to the Free Software
 514 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 515 </PRE>
 516
 517 <P>Also add information on how to contact you by electronic and paper mail.
 518
 519 <P>If the program is interactive, make it output a short notice like this
 520 when it starts in an interactive mode:
 521
 522 <PRE>
 523 Gnomovision version 69, Copyright (C) <VAR>year</VAR> <VAR>name of author</VAR>
 524 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
 525 type `show w'.  This is free software, and you are welcome
 526 to redistribute it under certain conditions; type `show c'
 527 for details.
 528 </PRE>
 529
 530 <P>The hypothetical commands <SAMP>`show w'</SAMP> and <SAMP>`show c'</SAMP> should show
 531 the appropriate parts of the General Public License.  Of course, the
 532 commands you use may be called something other than <SAMP>`show w'</SAMP> and
 533 <SAMP>`show c'</SAMP>; they could even be mouse-clicks or menu items--whatever
 534 suits your program.
 535
 536 <P>You should also get your employer (if you work as a programmer) or your
 537 school, if any, to sign a "copyright disclaimer" for the program, if
 538 necessary.  Here is a sample; alter the names:
 539
 540 <PRE>
 541 Yoyodyne, Inc., hereby disclaims all copyright
 542 interest in the program `Gnomovision'
 543 (which makes passes at compilers) written
 544 by James Hacker.
 545
 546 <VAR>signature of Ty Coon</VAR>, 1 April 1989
 547 Ty Coon, President of Vice
 548 </PRE>
 549
 550 <H2 CLASS="title"><A NAME="LGPL">GNU LIBRARY GENERAL PUBLIC LICENSE</A></H2>
 551
 552 <P>Version 2, June 1991
 553
 554 <PRE>
 555 Copyright (C) 1991 Free Software Foundation, Inc.
 556 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 557 Everyone is permitted to copy and distribute verbatim copies
 558 of this license document, but changing it is not allowed.
 559
 560 [This is the first released version of the library GPL.  It is
 561  numbered 2 because it goes with version 2 of the ordinary GPL.]
 562 </PRE>
 563
 564 <H3>Preamble</H3>
 565
 566 <P>The licenses for most software are designed to take away your
 567 freedom to share and change it.  By contrast, the GNU General Public
 568 Licenses are intended to guarantee your freedom to share and change
 569 free software--to make sure the software is free for all its users.
 570
 571 <P>This license, the Library General Public License, applies to some
 572 specially designated Free Software Foundation software, and to any
 573 other libraries whose authors decide to use it.  You can use it for
 574 your libraries, too.
 575
 576 <P>When we speak of free software, we are referring to freedom, not
 577 price.  Our General Public Licenses are designed to make sure that you
 578 have the freedom to distribute copies of free software (and charge for
 579 this service if you wish), that you receive source code or can get it
 580 if you want it, that you can change the software or use pieces of it
 581 in new free programs; and that you know you can do these things.
 582
 583 <P>To protect your rights, we need to make restrictions that forbid
 584 anyone to deny you these rights or to ask you to surrender the rights.
 585 These restrictions translate to certain responsibilities for you if
 586 you distribute copies of the library, or if you modify it.
 587
 588 <P>For example, if you distribute copies of the library, whether gratis
 589 or for a fee, you must give the recipients all the rights that we gave
 590 you.  You must make sure that they, too, receive or can get the source
 591 code.  If you link a program with the library, you must provide
 592 complete object files to the recipients so that they can relink them
 593 with the library, after making changes to the library and recompiling
 594 it.  And you must show them these terms so they know their rights.
 595
 596 <P>Our method of protecting your rights has two steps: (1) copyright
 597 the library, and (2) offer you this license which gives you legal
 598 permission to copy, distribute and/or modify the library.
 599
 600 <P>Also, for each distributor's protection, we want to make certain
 601 that everyone understands that there is no warranty for this free
 602 library.  If the library is modified by someone else and passed on, we
 603 want its recipients to know that what they have is not the original
 604 version, so that any problems introduced by others will not reflect on
 605 the original authors' reputations.
 606
 607 <P>Finally, any free program is threatened constantly by software
 608 patents.  We wish to avoid the danger that companies distributing free
 609 software will individually obtain patent licenses, thus in effect
 610 transforming the program into proprietary software.  To prevent this,
 611 we have made it clear that any patent must be licensed for everyone's
 612 free use or not licensed at all.
 613
 614 <P>Most GNU software, including some libraries, is covered by the ordinary
 615 GNU General Public License, which was designed for utility programs.  This
 616 license, the GNU Library General Public License, applies to certain
 617 designated libraries.  This license is quite different from the ordinary
 618 one; be sure to read it in full, and don't assume that anything in it is
 619 the same as in the ordinary license.
 620
 621 <P>The reason we have a separate public license for some libraries is that
 622 they blur the distinction we usually make between modifying or adding to a
 623 program and simply using it.  Linking a program with a library, without
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1026 <H3>How to Apply These Terms to Your New Libraries</H3>
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1064 <PRE>
1065 Yoyodyne, Inc., hereby disclaims all copyright interest in
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1068
1069 <VAR>signature of Ty Coon</VAR>, 1 April 1990
1070 Ty Coon, President of Vice
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