1 @cindex GPL, GNU General Public License 2 @cindex eCos, GNU General Public License with eCos Extension 3 @center Version 2, June 1991 4 5 @display 6 Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc. 7 59 Temple Place -- Suite 330, Boston, MA 02111-1307, USA 8 9 Everyone is permitted to copy and distribute verbatim copies 10 of this license document, but changing it is not allowed. 11 @end display 12 13 14 15 16 @subheading Preamble 17 18 The licenses for most software are designed to take away your 19 freedom to share and change it. By contrast, the GNU General Public 20 License is intended to guarantee your freedom to share and change free 21 software---to make sure the software is free for all its users. This 22 General Public License applies to most of the Free Software 23 Foundation's software and to any other program whose authors commit to 24 using it. (Some other Free Software Foundation software is covered by 25 the GNU Library General Public License instead.) You can apply it to 26 your programs, too. 27 28 When we speak of free software, we are referring to freedom, not 29 price. Our General Public Licenses are designed to make sure that you 30 have the freedom to distribute copies of free software (and charge for 31 this service if you wish), that you receive source code or can get it 32 if you want it, that you can change the software or use pieces of it 33 in new free programs; and that you know you can do these things. 34 35 To protect your rights, we need to make restrictions that forbid 36 anyone to deny you these rights or to ask you to surrender the rights. 37 These restrictions translate to certain responsibilities for you if you 38 distribute copies of the software, or if you modify it. 39 40 For example, if you distribute copies of such a program, whether 41 gratis or for a fee, you must give the recipients all the rights that 42 you have. You must make sure that they, too, receive or can get the 43 source code. And you must show them these terms so they know their 44 rights. 45 46 We protect your rights with two steps: (1) copyright the software, and 47 (2) offer you this license which gives you legal permission to copy, 48 distribute and/or modify the software. 49 50 Also, for each author's protection and ours, we want to make certain 51 that everyone understands that there is no warranty for this free 52 software. If the software is modified by someone else and passed on, we 53 want its recipients to know that what they have is not the original, so 54 that any problems introduced by others will not reflect on the original 55 authors' reputations. 56 57 Finally, any free program is threatened constantly by software 58 patents. We wish to avoid the danger that redistributors of a free 59 program will individually obtain patent licenses, in effect making the 60 program proprietary. To prevent this, we have made it clear that any 61 patent must be licensed for everyone's free use or not licensed at all. 62 63 The precise terms and conditions for copying, distribution and 64 modification follow. 65 66 @iftex 67 @subheading TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 68 @end iftex 69 @ifinfo 70 @center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 71 @end ifinfo 72 73 @enumerate 74 @item 75 This License applies to any program or other work which contains 76 a notice placed by the copyright holder saying it may be distributed 77 under the terms of this General Public License. The ``Program'', below, 78 refers to any such program or work, and a ``work based on the Program'' 79 means either the Program or any derivative work under copyright law: 80 that is to say, a work containing the Program or a portion of it, 81 either verbatim or with modifications and/or translated into another 82 language. (Hereinafter, translation is included without limitation in 83 the term ``modification''.) Each licensee is addressed as ``you''. 84 85 Activities other than copying, distribution and modification are not 86 covered by this License; they are outside its scope. The act of 87 running the Program is not restricted, and the output from the Program 88 is covered only if its contents constitute a work based on the 89 Program (independent of having been made by running the Program). 90 Whether that is true depends on what the Program does. 91 92 @item 93 You may copy and distribute verbatim copies of the Program's 94 source code as you receive it, in any medium, provided that you 95 conspicuously and appropriately publish on each copy an appropriate 96 copyright notice and disclaimer of warranty; keep intact all the 97 notices that refer to this License and to the absence of any warranty; 98 and give any other recipients of the Program a copy of this License 99 along with the Program. 100 101 You may charge a fee for the physical act of transferring a copy, and 102 you may at your option offer warranty protection in exchange for a fee. 103 104 @item 105 You may modify your copy or copies of the Program or any portion 106 of it, thus forming a work based on the Program, and copy and 107 distribute such modifications or work under the terms of Section 1 108 above, provided that you also meet all of these conditions: 109 110 @enumerate a 111 @item 112 You must cause the modified files to carry prominent notices 113 stating that you changed the files and the date of any change. 114 115 @item 116 You must cause any work that you distribute or publish, that in 117 whole or in part contains or is derived from the Program or any 118 part thereof, to be licensed as a whole at no charge to all third 119 parties under the terms of this License. 120 121 @item 122 If the modified program normally reads commands interactively 123 when run, you must cause it, when started running for such 124 interactive use in the most ordinary way, to print or display an 125 announcement including an appropriate copyright notice and a 126 notice that there is no warranty (or else, saying that you provide 127 a warranty) and that users may redistribute the program under 128 these conditions, and telling the user how to view a copy of this 129 License. (Exception: if the Program itself is interactive but 130 does not normally print such an announcement, your work based on 131 the Program is not required to print an announcement.) 132 @end enumerate 133 134 These requirements apply to the modified work as a whole. If 135 identifiable sections of that work are not derived from the Program, 136 and can be reasonably considered independent and separate works in 137 themselves, then this License, and its terms, do not apply to those 138 sections when you distribute them as separate works. But when you 139 distribute the same sections as part of a whole which is a work based 140 on the Program, the distribution of the whole must be on the terms of 141 this License, whose permissions for other licensees extend to the 142 entire whole, and thus to each and every part regardless of who wrote it. 143 144 Thus, it is not the intent of this section to claim rights or contest 145 your rights to work written entirely by you; rather, the intent is to 146 exercise the right to control the distribution of derivative or 147 collective works based on the Program. 148 149 In addition, mere aggregation of another work not based on the Program 150 with the Program (or with a work based on the Program) on a volume of 151 a storage or distribution medium does not bring the other work under 152 the scope of this License. 153 154 @item 155 You may copy and distribute the Program (or a work based on it, 156 under Section 2) in object code or executable form under the terms of 157 Sections 1 and 2 above provided that you also do one of the following: 158 159 @enumerate a 160 @item 161 Accompany it with the complete corresponding machine-readable 162 source code, which must be distributed under the terms of Sections 163 1 and 2 above on a medium customarily used for software interchange; or, 164 165 @item 166 Accompany it with a written offer, valid for at least three 167 years, to give any third party, for a charge no more than your 168 cost of physically performing source distribution, a complete 169 machine-readable copy of the corresponding source code, to be 170 distributed under the terms of Sections 1 and 2 above on a medium 171 customarily used for software interchange; or, 172 173 @item 174 Accompany it with the information you received as to the offer 175 to distribute corresponding source code. (This alternative is 176 allowed only for noncommercial distribution and only if you 177 received the program in object code or executable form with such 178 an offer, in accord with Subsection b above.) 179 @end enumerate 180 181 The source code for a work means the preferred form of the work for 182 making modifications to it. For an executable work, complete source 183 code means all the source code for all modules it contains, plus any 184 associated interface definition files, plus the scripts used to 185 control compilation and installation of the executable. However, as a 186 special exception, the source code distributed need not include 187 anything that is normally distributed (in either source or binary 188 form) with the major components (compiler, kernel, and so on) of the 189 operating system on which the executable runs, unless that component 190 itself accompanies the executable. 191 192 If distribution of executable or object code is made by offering 193 access to copy from a designated place, then offering equivalent 194 access to copy the source code from the same place counts as 195 distribution of the source code, even though third parties are not 196 compelled to copy the source along with the object code. 197 198 @item 199 You may not copy, modify, sublicense, or distribute the Program 200 except as expressly provided under this License. Any attempt 201 otherwise to copy, modify, sublicense or distribute the Program is 202 void, and will automatically terminate your rights under this License. 203 However, parties who have received copies, or rights, from you under 204 this License will not have their licenses terminated so long as such 205 parties remain in full compliance. 206 207 @item 208 You are not required to accept this License, since you have not 209 signed it. However, nothing else grants you permission to modify or 210 distribute the Program or its derivative works. These actions are 211 prohibited by law if you do not accept this License. Therefore, by 212 modifying or distributing the Program (or any work based on the 213 Program), you indicate your acceptance of this License to do so, and 214 all its terms and conditions for copying, distributing or modifying 215 the Program or works based on it. 216 217 @item 218 Each time you redistribute the Program (or any work based on the 219 Program), the recipient automatically receives a license from the 220 original licensor to copy, distribute or modify the Program subject to 221 these terms and conditions. You may not impose any further 222 restrictions on the recipients' exercise of the rights granted herein. 223 You are not responsible for enforcing compliance by third parties to 224 this License. 225 226 @item 227 If, as a consequence of a court judgment or allegation of patent 228 infringement or for any other reason (not limited to patent issues), 229 conditions are imposed on you (whether by court order, agreement or 230 otherwise) that contradict the conditions of this License, they do not 231 excuse you from the conditions of this License. If you cannot 232 distribute so as to satisfy simultaneously your obligations under this 233 License and any other pertinent obligations, then as a consequence you 234 may not distribute the Program at all. For example, if a patent 235 license would not permit royalty-free redistribution of the Program by 236 all those who receive copies directly or indirectly through you, then 237 the only way you could satisfy both it and this License would be to 238 refrain entirely from distribution of the Program. 239 240 If any portion of this section is held invalid or unenforceable under 241 any particular circumstance, the balance of the section is intended to 242 apply and the section as a whole is intended to apply in other 243 circumstances. 244 245 It is not the purpose of this section to induce you to infringe any 246 patents or other property right claims or to contest validity of any 247 such claims; this section has the sole purpose of protecting the 248 integrity of the free software distribution system, which is 249 implemented by public license practices. Many people have made 250 generous contributions to the wide range of software distributed 251 through that system in reliance on consistent application of that 252 system; it is up to the author/donor to decide if he or she is willing 253 to distribute software through any other system and a licensee cannot 254 impose that choice. 255 256 This section is intended to make thoroughly clear what is believed to 257 be a consequence of the rest of this License. 258 259 @item 260 If the distribution and/or use of the Program is restricted in 261 certain countries either by patents or by copyrighted interfaces, the 262 original copyright holder who places the Program under this License 263 may add an explicit geographical distribution limitation excluding 264 those countries, so that distribution is permitted only in or among 265 countries not thus excluded. In such case, this License incorporates 266 the limitation as if written in the body of this License. 267 268 @item 269 The Free Software Foundation may publish revised and/or new versions 270 of the General Public License from time to time. Such new versions will 271 be similar in spirit to the present version, but may differ in detail to 272 address new problems or concerns. 273 274 Each version is given a distinguishing version number. If the Program 275 specifies a version number of this License which applies to it and ``any 276 later version'', you have the option of following the terms and conditions 277 either of that version or of any later version published by the Free 278 Software Foundation. If the Program does not specify a version number of 279 this License, you may choose any version ever published by the Free Software 280 Foundation. 281 282 @item 283 If you wish to incorporate parts of the Program into other free 284 programs whose distribution conditions are different, write to the author 285 to ask for permission. For software which is copyrighted by the Free 286 Software Foundation, write to the Free Software Foundation; we sometimes 287 make exceptions for this. Our decision will be guided by the two goals 288 of preserving the free status of all derivatives of our free software and 289 of promoting the sharing and reuse of software generally. 290 291 @center @b{NO WARRANTY} 292 293 @item 294 BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 295 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 296 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 297 PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 298 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 299 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 300 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 301 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 302 REPAIR OR CORRECTION. 303 304 @item 305 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 306 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 307 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 308 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 309 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 310 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 311 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 312 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 313 POSSIBILITY OF SUCH DAMAGES. 314 315 @center @b{ECOS EXTENSION} 316 317 318 @item 319 As a special exception, if other files instantiate templates or use 320 macros or inline functions from this file, or you compile this file 321 and link it with other works to produce a work based on this file, 322 this file does not by itself cause the resulting work to be covered by 323 the GNU General Public License. However the source code for this file 324 must still be made available in accordance with section (3) of the GNU 325 General Public License v2. 326 327 This exception does not invalidate any other reasons why a work based 328 on this file might be covered by the GNU General Public License. 329 330 @end enumerate 331 332 333 @subheading END OF TERMS AND CONDITIONS 334 335 @page 336 @unnumberedsec How to Apply These Terms to Your New Programs 337 338 If you develop a new program, and you want it to be of the greatest 339 possible use to the public, the best way to achieve this is to make it 340 free software which everyone can redistribute and change under these terms. 341 342 To do so, attach the following notices to the program. It is safest 343 to attach them to the start of each source file to most effectively 344 convey the exclusion of warranty; and each file should have at least 345 the ``copyright'' line and a pointer to where the full notice is found. 346 347 @smallexample 348 @var{one line to give the program's name and an idea of what it does.} 349 Copyright (C) 19@var{yy} @var{name of author} 350 351 This program is free software; you can redistribute it and/or 352 modify it under the terms of the GNU General Public License 353 as published by the Free Software Foundation; either version 2 354 of the License, or (at your option) any later version. 355 356 This program is distributed in the hope that it will be useful, 357 but WITHOUT ANY WARRANTY; without even the implied warranty of 358 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 359 GNU General Public License for more details. 360 361 You should have received a copy of the GNU General Public License along 362 with this program; if not, write to the Free Software Foundation, Inc., 363 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. 364 @end smallexample 365 366 Also add information on how to contact you by electronic and paper mail. 367 368 If the program is interactive, make it output a short notice like this 369 when it starts in an interactive mode: 370 371 @smallexample 372 Gnomovision version 69, Copyright (C) 19@var{yy} @var{name of author} 373 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details 374 type `show w'. This is free software, and you are welcome 375 to redistribute it under certain conditions; type `show c' 376 for details. 377 @end smallexample 378 379 The hypothetical commands @samp{show w} and @samp{show c} should show 380 the appropriate parts of the General Public License. Of course, the 381 commands you use may be called something other than @samp{show w} and 382 @samp{show c}; they could even be mouse-clicks or menu items---whatever 383 suits your program. 384 385 You should also get your employer (if you work as a programmer) or your 386 school, if any, to sign a ``copyright disclaimer'' for the program, if 387 necessary. Here is a sample; alter the names: 388 389 @smallexample 390 @group 391 Yoyodyne, Inc., hereby disclaims all copyright 392 interest in the program `Gnomovision' 393 (which makes passes at compilers) written 394 by James Hacker. 395 396 @var{signature of Ty Coon}, 1 April 1989 397 Ty Coon, President of Vice 398 @end group 399 @end smallexample 400 401 This General Public License does not permit incorporating your program into 402 proprietary programs. If your program is a subroutine library, you may 403 consider it more useful to permit linking proprietary applications with the 404 library. If this is what you want to do, use the GNU Library General 405 Public License instead of this License. 406
