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   9 <H1 CLASS="title">Software License Agreement</H1>
  10
  11 <P ALIGN="CENTER">Copyright 2007-2009 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
  25 located in the "cups" and "filter" subdirectories of the CUPS
  26 source distribution and in the "cups" include directory and
  27 library files in the binary distributions. The GNU GPL applies to
  28 the remainder of the CUPS distribution, including the "pdftops"
  29 filter which is based upon Xpdf.</P>
  30
  31 <P>For those not familiar with the GNU GPL, the license basically
  32 allows you to:</P>
  33
  34 <UL>
  35
  36         <LI>Use the CUPS software at no charge.</LI>
  37
  38         <LI>Distribute verbatim copies of the software in source
  39         or binary form.</LI>
  40
  41         <LI>Sell verbatim copies of the software for a media
  42         fee, or sell support for the software.</LI>
  43
  44 </UL>
  45
  46 <P>What this license <EM>does not</EM> allow you to do is make
  47 changes or add features to CUPS and then sell a binary
  48 distribution without source code. You must provide source for any
  49 changes or additions to the software, and all code must be
  50 provided under the GPL or LGPL as appropriate. The only
  51 exceptions to this are the portions of the CUPS software covered
  52 by the Apple operating system license exceptions outlined later
  53 in this license agreement.</P>
  54
  55 <P>The GNU LGPL relaxes the "link-to" restriction, allowing you
  56 to develop applications that use the CUPS and CUPS Imaging
  57 libraries under other licenses and/or conditions as appropriate
  58 for your application, driver, or filter.</P>
  59
  60
  61 <H2 CLASS="title"><A NAME="EXCEPTIONS">License Exceptions</A></H2>
  62
  63 <P>In addition, as the copyright holder of CUPS, Apple Inc. grants
  64 the following special exceptions:</P>
  65
  66 <OL>
  67
  68         <LI><B>Apple Operating System Development License
  69         Exception</B>;
  70
  71         <OL TYPE="a">
  72
  73                 <LI>Software that is developed by any person or
  74                 entity for an Apple Operating System ("Apple
  75                 OS-Developed Software"), including but not
  76                 limited to Apple and third party printer
  77                 drivers, filters, and backends for an Apple
  78                 Operating System, that is linked to the CUPS
  79                 imaging library or based on any sample filters
  80                 or backends provided with CUPS shall not be
  81                 considered to be a derivative work or collective
  82                 work based on the CUPS program and is exempt
  83                 from the mandatory source code release clauses
  84                 of the GNU GPL. You may therefore distribute
  85                 linked combinations of the CUPS imaging library
  86                 with Apple OS-Developed Software without
  87                 releasing the source code of the Apple
  88                 OS-Developed Software. You may also use sample
  89                 filters and backends provided with CUPS to
  90                 develop Apple OS-Developed Software without
  91                 releasing the source code of the Apple
  92                 OS-Developed Software.</LI>
  93
  94                 <LI>An Apple Operating System means any
  95                 operating system software developed and/or
  96                 marketed by Apple Computer, Inc., including but
  97                 not limited to all existing releases and
  98                 versions of Apple's Darwin, Mac OS X, and Mac OS
  99                 X Server products and all follow-on releases and
 100                 future versions thereof.</LI>
 101
 102                 <LI>This exception is only available for Apple
 103                 OS-Developed Software and does not apply to
 104                 software that is distributed for use on other
 105                 operating systems.</LI>
 106
 107                 <LI>All CUPS software that falls under this
 108                 license exception have the following text at the
 109                 top of each source file:
 110
 111                 <BLOCKQUOTE>This file is subject to the Apple
 112                 OS-Developed Software
 113                 exception.</BLOCKQUOTE></LI>
 114
 115         </OL>
 116
 117         <LI><B>OpenSSL Toolkit License Exception</B>;
 118
 119         <OL TYPE="a">
 120
 121                 <LI>Apple Inc. explicitly allows the
 122                 compilation and distribution of the CUPS
 123                 software with the OpenSSL Toolkit.</LI>
 124
 125         </OL>
 126
 127 </OL>
 128
 129 <P>No developer is required to provide these exceptions in a
 130 derived work.</P>
 131
 132
 133 <H2 CLASS="title"><A NAME="KERBEROS">Kerberos Support Code</A></H2>
 134
 135 <P>The Kerberos support code ("KSC") is copyright 2006 by Jelmer
 136 Vernooij and is provided 'as-is', without any express or implied
 137 warranty. In no event will the author or Apple Inc. be held liable
 138 for any damages arising from the use of the KSC.</P>
 139
 140 <P>Sources files containing KSC have the following text at the top
 141 of each source file:</P>
 142
 143 <BLOCKQUOTE>This file contains Kerberos support code, copyright
 144 2006 by Jelmer Vernooij.</BLOCKQUOTE>
 145
 146 <P>The KSC copyright and license apply <EM>only</EM> to
 147 Kerberos-related feature code in CUPS. Such code is typically
 148 conditionally compiled based on the present of the
 149 <TT>HAVE_GSSAPI</TT> preprocessor definition.</P>
 150
 151 <P>Permission is granted to anyone to use the KSC for any
 152 purpose, including commercial applications, and to alter it and
 153 redistribute it freely, subject to the following
 154 restrictions:</P>
 155
 156 <OL>
 157
 158         <LI>The origin of the KSC must not be misrepresented; you
 159         must not claim that you wrote the original software. If
 160         you use the KSC in a product, an acknowledgment in the
 161         product documentation would be appreciated but is not
 162         required.</LI>
 163
 164         <LI>Altered source versions must be plainly marked as
 165         such, and must not be misrepresented as being the
 166         original software.</LI>
 167
 168         <LI>This notice may not be removed or altered from any
 169         source distribution.</LI>
 170
 171 </OL>
 172
 173
 174 <H2 CLASS="title"><A NAME="TRADEMARKS">Trademarks</A></H2>
 175
 176 <P>CUPS and the CUPS logo (the "CUPS Marks") are trademarks of Apple Inc. Apple
 177 grants you a non-exclusive and non-transferable right to use the CUPS Marks in
 178 any direct port or binary distribution incorporating CUPS software and in any
 179 promotional material therefor. You agree that your products will meet the
 180 highest levels of quality and integrity for similar goods, not be unlawful, and
 181 be developed, manufactured, and distributed in compliance with this license.
 182 You will not interfere with Apple's rights in the CUPS Marks, and all use of the
 183 CUPS Marks shall inure to the benefit of Apple. This license does not apply to
 184 use of the CUPS Marks in a derivative products, which requires prior written
 185 permission from Apple Inc.</P>
 186
 187
 188 <H2 CLASS="title"><A NAME="GPL">GNU GENERAL PUBLIC LICENSE</A></H2>
 189
 190 <P>Version 2, June 1991
 191
 192 <PRE>
 193 Copyright 1989, 1991 Free Software Foundation, Inc.
 194 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 195
 196 Everyone is permitted to copy and distribute verbatim
 197 copies of this license document, but changing it is not allowed.
 198 </PRE>
 199
 200 <H3>Preamble</H3>
 201
 202 <P>The licenses for most software are designed to take away your
 203 freedom to share and change it.  By contrast, the GNU General Public
 204 License is intended to guarantee your freedom to share and change free
 205 software--to make sure the software is free for all its users.  This
 206 General Public License applies to most of the Free Software
 207 Foundation's software and to any other program whose authors commit to
 208 using it.  (Some other Free Software Foundation software is covered by
 209 the GNU Library General Public License instead.)  You can apply it to
 210 your programs, too.
 211
 212 <P>When we speak of free software, we are referring to freedom, not
 213 price.  Our General Public Licenses are designed to make sure that you
 214 have the freedom to distribute copies of free software (and charge for
 215 this service if you wish), that you receive source code or can get it
 216 if you want it, that you can change the software or use pieces of it
 217 in new free programs; and that you know you can do these things.
 218
 219 <P>To protect your rights, we need to make restrictions that forbid
 220 anyone to deny you these rights or to ask you to surrender the rights.
 221 These restrictions translate to certain responsibilities for you if you
 222 distribute copies of the software, or if you modify it.
 223
 224 <P>For example, if you distribute copies of such a program, whether
 225 gratis or for a fee, you must give the recipients all the rights that
 226 you have.  You must make sure that they, too, receive or can get the
 227 source code.  And you must show them these terms so they know their
 228 rights.
 229
 230 <P>We protect your rights with two steps: (1) copyright the software, and
 231 (2) offer you this license which gives you legal permission to copy,
 232 distribute and/or modify the software.
 233
 234 <P>Also, for each author's protection and ours, we want to make certain
 235 that everyone understands that there is no warranty for this free
 236 software.  If the software is modified by someone else and passed on, we
 237 want its recipients to know that what they have is not the original, so
 238 that any problems introduced by others will not reflect on the original
 239 authors' reputations.
 240
 241 <P>Finally, any free program is threatened constantly by software
 242 patents.  We wish to avoid the danger that redistributors of a free
 243 program will individually obtain patent licenses, in effect making the
 244 program proprietary.  To prevent this, we have made it clear that any
 245 patent must be licensed for everyone's free use or not licensed at all.
 246
 247 <P>The precise terms and conditions for copying, distribution and
 248 modification follow.
 249
 250 <H3>GNU GENERAL PUBLIC LICENSE<BR>
 251 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION</H3>
 252
 253 <OL START="0">
 254
 255 <LI>This License applies to any program or other work which contains
 256 a notice placed by the copyright holder saying it may be distributed
 257 under the terms of this General Public License.  The "Program", below,
 258 refers to any such program or work, and a "work based on the Program"
 259 means either the Program or any derivative work under copyright law:
 260 that is to say, a work containing the Program or a portion of it,
 261 either verbatim or with modifications and/or translated into another
 262 language.  (Hereinafter, translation is included without limitation in
 263 the term "modification".)  Each licensee is addressed as "you".
 264
 265 <P>Activities other than copying, distribution and modification are not
 266 covered by this License; they are outside its scope.  The act of
 267 running the Program is not restricted, and the output from the Program
 268 is covered only if its contents constitute a work based on the
 269 Program (independent of having been made by running the Program).
 270 Whether that is true depends on what the Program does.
 271
 272 <LI>You may copy and distribute verbatim copies of the Program's
 273 source code as you receive it, in any medium, provided that you
 274 conspicuously and appropriately publish on each copy an appropriate
 275 copyright notice and disclaimer of warranty; keep intact all the
 276 notices that refer to this License and to the absence of any warranty;
 277 and give any other recipients of the Program a copy of this License
 278 along with the Program.
 279
 280 <P>You may charge a fee for the physical act of transferring a copy, and
 281 you may at your option offer warranty protection in exchange for a fee.
 282
 283 <LI>You may modify your copy or copies of the Program or any portion
 284 of it, thus forming a work based on the Program, and copy and
 285 distribute such modifications or work under the terms of Section 1
 286 above, provided that you also meet all of these conditions:
 287
 288 <OL TYPE="a">
 289
 290 <LI>You must cause the modified files to carry prominent notices
 291 stating that you changed the files and the date of any change.
 292
 293 <LI>You must cause any work that you distribute or publish, that in
 294 whole or in part contains or is derived from the Program or any
 295 part thereof, to be licensed as a whole at no charge to all third
 296 parties under the terms of this License.
 297
 298 <LI>if the modified program normally reads commands interactively
 299 when run, you must cause it, when started running for such
 300 interactive use in the most ordinary way, to print or display an
 301 announcement including an appropriate copyright notice and a
 302 notice that there is no warranty (or else, saying that you provide
 303 a warranty) and that users may redistribute the program under
 304 these conditions, and telling the user how to view a copy of this
 305 License.  (Exception: if the Program itself is interactive but
 306 does not normally print such an announcement, your work based on
 307 the Program is not required to print an announcement.)
 308
 309 </OL>
 310
 311 <P>These requirements apply to the modified work as a whole.  If
 312 identifiable sections of that work are not derived from the Program,
 313 and can be reasonably considered independent and separate works in
 314 themselves, then this License, and its terms, do not apply to those
 315 sections when you distribute them as separate works.  But when you
 316 distribute the same sections as part of a whole which is a work based
 317 on the Program, the distribution of the whole must be on the terms of
 318 this License, whose permissions for other licensees extend to the
 319 entire whole, and thus to each and every part regardless of who wrote it.
 320
 321 <P>Thus, it is not the intent of this section to claim rights or contest
 322 your rights to work written entirely by you; rather, the intent is to
 323 exercise the right to control the distribution of derivative or
 324 collective works based on the Program.
 325
 326 <P>In addition, mere aggregation of another work not based on the Program
 327 with the Program (or with a work based on the Program) on a volume of
 328 a storage or distribution medium does not bring the other work under
 329 the scope of this License.
 330
 331 <LI>You may copy and distribute the Program (or a work based on it,
 332 under Section 2) in object code or executable form under the terms of
 333 Sections 1 and 2 above provided that you also do one of the following:
 334
 335 <OL TYPE="a">
 336
 337 <LI>Accompany it with the complete corresponding machine-readable
 338 source code, which must be distributed under the terms of Sections
 339 1 and 2 above on a medium customarily used for software interchange; or,
 340
 341 <LI>Accompany it with a written offer, valid for at least three
 342 years, to give any third party, for a charge no more than your
 343 cost of physically performing source distribution, a complete
 344 machine-readable copy of the corresponding source code, to be
 345 distributed under the terms of Sections 1 and 2 above on a medium
 346 customarily used for software interchange; or,
 347
 348 <LI>Accompany it with the information you received as to the offer
 349 to distribute corresponding source code.  (This alternative is
 350 allowed only for noncommercial distribution and only if you
 351 received the program in object code or executable form with such
 352 an offer, in accord with Subsection b above.)
 353
 354 </OL>
 355
 356 <P>The source code for a work means the preferred form of the work for
 357 making modifications to it.  For an executable work, complete source
 358 code means all the source code for all modules it contains, plus any
 359 associated interface definition files, plus the scripts used to
 360 control compilation and installation of the executable.  However, as a
 361 special exception, the source code distributed need not include
 362 anything that is normally distributed (in either source or binary
 363 form) with the major components (compiler, kernel, and so on) of the
 364 operating system on which the executable runs, unless that component
 365 itself accompanies the executable.
 366
 367 <P>If distribution of executable or object code is made by offering
 368 access to copy from a designated place, then offering equivalent
 369 access to copy the source code from the same place counts as
 370 distribution of the source code, even though third parties are not
 371 compelled to copy the source along with the object code.
 372
 373 <LI>You may not copy, modify, sublicense, or distribute the Program
 374 except as expressly provided under this License.  Any attempt
 375 otherwise to copy, modify, sublicense or distribute the Program is
 376 void, and will automatically terminate your rights under this License.
 377 However, parties who have received copies, or rights, from you under
 378 this License will not have their licenses terminated so long as such
 379 parties remain in full compliance.
 380
 381 <LI>You are not required to accept this License, since you have not
 382 signed it.  However, nothing else grants you permission to modify or
 383 distribute the Program or its derivative works.  These actions are
 384 prohibited by law if you do not accept this License.  Therefore, by
 385 modifying or distributing the Program (or any work based on the
 386 Program), you indicate your acceptance of this License to do so, and
 387 all its terms and conditions for copying, distributing or modifying
 388 the Program or works based on it.
 389
 390 <LI>Each time you redistribute the Program (or any work based on the
 391 Program), the recipient automatically receives a license from the
 392 original licensor to copy, distribute or modify the Program subject to
 393 these terms and conditions.  You may not impose any further
 394 restrictions on the recipients' exercise of the rights granted herein.
 395 You are not responsible for enforcing compliance by third parties to
 396 this License.
 397
 398 <LI>If, as a consequence of a court judgment or allegation of patent
 399 infringement or for any other reason (not limited to patent issues),
 400 conditions are imposed on you (whether by court order, agreement or
 401 otherwise) that contradict the conditions of this License, they do not
 402 excuse you from the conditions of this License.  If you cannot
 403 distribute so as to satisfy simultaneously your obligations under this
 404 License and any other pertinent obligations, then as a consequence you
 405 may not distribute the Program at all.  For example, if a patent
 406 license would not permit royalty-free redistribution of the Program by
 407 all those who receive copies directly or indirectly through you, then
 408 the only way you could satisfy both it and this License would be to
 409 refrain entirely from distribution of the Program.
 410
 411 <P>If any portion of this section is held invalid or unenforceable under
 412 any particular circumstance, the balance of the section is intended to
 413 apply and the section as a whole is intended to apply in other
 414 circumstances.
 415
 416 <P>It is not the purpose of this section to induce you to infringe any
 417 patents or other property right claims or to contest validity of any
 418 such claims; this section has the sole purpose of protecting the
 419 integrity of the free software distribution system, which is
 420 implemented by public license practices.  Many people have made
 421 generous contributions to the wide range of software distributed
 422 through that system in reliance on consistent application of that
 423 system; it is up to the author/donor to decide if he or she is willing
 424 to distribute software through any other system and a licensee cannot
 425 impose that choice.
 426
 427 <P>This section is intended to make thoroughly clear what is believed to
 428 be a consequence of the rest of this License.
 429
 430 <LI>If the distribution and/or use of the Program is restricted in
 431 certain countries either by patents or by copyrighted interfaces, the
 432 original copyright holder who places the Program under this License
 433 may add an explicit geographical distribution limitation excluding
 434 those countries, so that distribution is permitted only in or among
 435 countries not thus excluded.  In such case, this License incorporates
 436 the limitation as if written in the body of this License.
 437
 438 <LI>The Free Software Foundation may publish revised and/or new versions
 439 of the General Public License from time to time.  Such new versions will
 440 be similar in spirit to the present version, but may differ in detail to
 441 address new problems or concerns.
 442
 443 <P>Each version is given a distinguishing version number.  If the Program
 444 specifies a version number of this License which applies to it and "any
 445 later version", you have the option of following the terms and conditions
 446 either of that version or of any later version published by the Free
 447 Software Foundation.  If the Program does not specify a version number of
 448 this License, you may choose any version ever published by the Free Software
 449 Foundation.
 450
 451 <LI>If you wish to incorporate parts of the Program into other free
 452 programs whose distribution conditions are different, write to the author
 453 to ask for permission.  For software which is copyrighted by the Free
 454 Software Foundation, write to the Free Software Foundation; we sometimes
 455 make exceptions for this.  Our decision will be guided by the two goals
 456 of preserving the free status of all derivatives of our free software and
 457 of promoting the sharing and reuse of software generally.
 458
 459 </OL>
 460
 461 <H3>NO WARRANTY</H3>
 462
 463 <OL START="11">
 464
 465 <LI>BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 466 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
 467 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
 468 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
 469 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 470 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
 471 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
 472 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
 473 REPAIR OR CORRECTION.
 474
 475 <LI>IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
 476 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
 477 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
 478 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
 479 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
 480 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
 481 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
 482 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
 483 POSSIBILITY OF SUCH DAMAGES.
 484
 485 </OL>
 486
 487 <H3>END OF TERMS AND CONDITIONS</H3>
 488
 489 <H3>How to Apply These Terms to Your New Programs</H3>
 490
 491 <P>If you develop a new program, and you want it to be of the greatest
 492 possible use to the public, the best way to achieve this is to make it
 493 free software which everyone can redistribute and change under these terms.
 494
 495 <P>To do so, attach the following notices to the program.  It is safest
 496 to attach them to the start of each source file to most effectively
 497 convey the exclusion of warranty; and each file should have at least
 498 the "copyright" line and a pointer to where the full notice is found.
 499
 500 <PRE>
 501 <VAR>one line to give the program's name and an idea of what it does.</VAR>
 502 Copyright (C) <VAR>yyyy</VAR>  <VAR>name of author</VAR>
 503
 504 This program is free software; you can redistribute it and/or
 505 modify it under the terms of the GNU General Public License
 506 as published by the Free Software Foundation; either version 2
 507 of the License, or (at your option) any later version.
 508
 509 This program is distributed in the hope that it will be useful,
 510 but WITHOUT ANY WARRANTY; without even the implied warranty of
 511 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 512 GNU General Public License for more details.
 513
 514 You should have received a copy of the GNU General Public License
 515 along with this program; if not, write to the Free Software
 516 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 517 </PRE>
 518
 519 <P>Also add information on how to contact you by electronic and paper mail.
 520
 521 <P>If the program is interactive, make it output a short notice like this
 522 when it starts in an interactive mode:
 523
 524 <PRE>
 525 Gnomovision version 69, Copyright (C) <VAR>year</VAR> <VAR>name of author</VAR>
 526 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
 527 type `show w'.  This is free software, and you are welcome
 528 to redistribute it under certain conditions; type `show c'
 529 for details.
 530 </PRE>
 531
 532 <P>The hypothetical commands <SAMP>`show w'</SAMP> and <SAMP>`show c'</SAMP> should show
 533 the appropriate parts of the General Public License.  Of course, the
 534 commands you use may be called something other than <SAMP>`show w'</SAMP> and
 535 <SAMP>`show c'</SAMP>; they could even be mouse-clicks or menu items--whatever
 536 suits your program.
 537
 538 <P>You should also get your employer (if you work as a programmer) or your
 539 school, if any, to sign a "copyright disclaimer" for the program, if
 540 necessary.  Here is a sample; alter the names:
 541
 542 <PRE>
 543 Yoyodyne, Inc., hereby disclaims all copyright
 544 interest in the program `Gnomovision'
 545 (which makes passes at compilers) written
 546 by James Hacker.
 547
 548 <VAR>signature of Ty Coon</VAR>, 1 April 1989
 549 Ty Coon, President of Vice
 550 </PRE>
 551
 552 <H2 CLASS="title"><A NAME="LGPL">GNU LIBRARY GENERAL PUBLIC LICENSE</A></H2>
 553
 554 <P>Version 2, June 1991
 555
 556 <PRE>
 557 Copyright (C) 1991 Free Software Foundation, Inc.
 558 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
 559 Everyone is permitted to copy and distribute verbatim copies
 560 of this license document, but changing it is not allowed.
 561
 562 [This is the first released version of the library GPL.  It is
 563  numbered 2 because it goes with version 2 of the ordinary GPL.]
 564 </PRE>
 565
 566 <H3>Preamble</H3>
 567
 568 <P>The licenses for most software are designed to take away your
 569 freedom to share and change it.  By contrast, the GNU General Public
 570 Licenses are intended to guarantee your freedom to share and change
 571 free software--to make sure the software is free for all its users.
 572
 573 <P>This license, the Library General Public License, applies to some
 574 specially designated Free Software Foundation software, and to any
 575 other libraries whose authors decide to use it.  You can use it for
 576 your libraries, too.
 577
 578 <P>When we speak of free software, we are referring to freedom, not
 579 price.  Our General Public Licenses are designed to make sure that you
 580 have the freedom to distribute copies of free software (and charge for
 581 this service if you wish), that you receive source code or can get it
 582 if you want it, that you can change the software or use pieces of it
 583 in new free programs; and that you know you can do these things.
 584
 585 <P>To protect your rights, we need to make restrictions that forbid
 586 anyone to deny you these rights or to ask you to surrender the rights.
 587 These restrictions translate to certain responsibilities for you if
 588 you distribute copies of the library, or if you modify it.
 589
 590 <P>For example, if you distribute copies of the library, whether gratis
 591 or for a fee, you must give the recipients all the rights that we gave
 592 you.  You must make sure that they, too, receive or can get the source
 593 code.  If you link a program with the library, you must provide
 594 complete object files to the recipients so that they can relink them
 595 with the library, after making changes to the library and recompiling
 596 it.  And you must show them these terms so they know their rights.
 597
 598 <P>Our method of protecting your rights has two steps: (1) copyright
 599 the library, and (2) offer you this license which gives you legal
 600 permission to copy, distribute and/or modify the library.
 601
 602 <P>Also, for each distributor's protection, we want to make certain
 603 that everyone understands that there is no warranty for this free
 604 library.  If the library is modified by someone else and passed on, we
 605 want its recipients to know that what they have is not the original
 606 version, so that any problems introduced by others will not reflect on
 607 the original authors' reputations.
 608
 609 <P>Finally, any free program is threatened constantly by software
 610 patents.  We wish to avoid the danger that companies distributing free
 611 software will individually obtain patent licenses, thus in effect
 612 transforming the program into proprietary software.  To prevent this,
 613 we have made it clear that any patent must be licensed for everyone's
 614 free use or not licensed at all.
 615
 616 <P>Most GNU software, including some libraries, is covered by the ordinary
 617 GNU General Public License, which was designed for utility programs.  This
 618 license, the GNU Library General Public License, applies to certain
 619 designated libraries.  This license is quite different from the ordinary
 620 one; be sure to read it in full, and don't assume that anything in it is
 621 the same as in the ordinary license.
 622
 623 <P>The reason we have a separate public license for some libraries is that
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1066 <PRE>
1067 Yoyodyne, Inc., hereby disclaims all copyright interest in
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1070
1071 <VAR>signature of Ty Coon</VAR>, 1 April 1990
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