1*5084e753SMark J. Nelson GNU GENERAL PUBLIC LICENSE 2*5084e753SMark J. Nelson Version 2, June 1991 3*5084e753SMark J. Nelson 4*5084e753SMark J. Nelson Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5*5084e753SMark J. Nelson 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6*5084e753SMark J. Nelson Everyone is permitted to copy and distribute verbatim copies 7*5084e753SMark J. Nelson of this license document, but changing it is not allowed. 8*5084e753SMark J. Nelson 9*5084e753SMark J. Nelson Preamble 10*5084e753SMark J. Nelson 11*5084e753SMark J. Nelson The licenses for most software are designed to take away your 12*5084e753SMark J. Nelsonfreedom to share and change it. By contrast, the GNU General Public 13*5084e753SMark J. NelsonLicense is intended to guarantee your freedom to share and change free 14*5084e753SMark J. Nelsonsoftware--to make sure the software is free for all its users. This 15*5084e753SMark J. NelsonGeneral Public License applies to most of the Free Software 16*5084e753SMark J. NelsonFoundation's software and to any other program whose authors commit to 17*5084e753SMark J. Nelsonusing it. (Some other Free Software Foundation software is covered by 18*5084e753SMark J. Nelsonthe GNU Lesser General Public License instead.) You can apply it to 19*5084e753SMark J. Nelsonyour programs, too. 20*5084e753SMark J. Nelson 21*5084e753SMark J. Nelson When we speak of free software, we are referring to freedom, not 22*5084e753SMark J. Nelsonprice. Our General Public Licenses are designed to make sure that you 23*5084e753SMark J. Nelsonhave the freedom to distribute copies of free software (and charge for 24*5084e753SMark J. Nelsonthis service if you wish), that you receive source code or can get it 25*5084e753SMark J. Nelsonif you want it, that you can change the software or use pieces of it 26*5084e753SMark J. 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Nelson We protect your rights with two steps: (1) copyright the software, and 40*5084e753SMark J. Nelson(2) offer you this license which gives you legal permission to copy, 41*5084e753SMark J. Nelsondistribute and/or modify the software. 42*5084e753SMark J. Nelson 43*5084e753SMark J. Nelson Also, for each author's protection and ours, we want to make certain 44*5084e753SMark J. Nelsonthat everyone understands that there is no warranty for this free 45*5084e753SMark J. Nelsonsoftware. If the software is modified by someone else and passed on, we 46*5084e753SMark J. Nelsonwant its recipients to know that what they have is not the original, so 47*5084e753SMark J. Nelsonthat any problems introduced by others will not reflect on the original 48*5084e753SMark J. Nelsonauthors' reputations. 49*5084e753SMark J. Nelson 50*5084e753SMark J. Nelson Finally, any free program is threatened constantly by software 51*5084e753SMark J. Nelsonpatents. We wish to avoid the danger that redistributors of a free 52*5084e753SMark J. Nelsonprogram will individually obtain patent licenses, in effect making the 53*5084e753SMark J. Nelsonprogram proprietary. To prevent this, we have made it clear that any 54*5084e753SMark J. Nelsonpatent must be licensed for everyone's free use or not licensed at all. 55*5084e753SMark J. Nelson 56*5084e753SMark J. Nelson The precise terms and conditions for copying, distribution and 57*5084e753SMark J. Nelsonmodification follow. 58*5084e753SMark J. Nelson 59*5084e753SMark J. Nelson GNU GENERAL PUBLIC LICENSE 60*5084e753SMark J. Nelson TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 61*5084e753SMark J. Nelson 62*5084e753SMark J. Nelson 0. This License applies to any program or other work which contains 63*5084e753SMark J. Nelsona notice placed by the copyright holder saying it may be distributed 64*5084e753SMark J. Nelsonunder the terms of this General Public License. The "Program", below, 65*5084e753SMark J. Nelsonrefers to any such program or work, and a "work based on the Program" 66*5084e753SMark J. Nelsonmeans either the Program or any derivative work under copyright law: 67*5084e753SMark J. Nelsonthat is to say, a work containing the Program or a portion of it, 68*5084e753SMark J. Nelsoneither verbatim or with modifications and/or translated into another 69*5084e753SMark J. Nelsonlanguage. (Hereinafter, translation is included without limitation in 70*5084e753SMark J. Nelsonthe term "modification".) Each licensee is addressed as "you". 71*5084e753SMark J. Nelson 72*5084e753SMark J. NelsonActivities other than copying, distribution and modification are not 73*5084e753SMark J. Nelsoncovered by this License; they are outside its scope. The act of 74*5084e753SMark J. Nelsonrunning the Program is not restricted, and the output from the Program 75*5084e753SMark J. 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NelsonYou may charge a fee for the physical act of transferring a copy, and 88*5084e753SMark J. Nelsonyou may at your option offer warranty protection in exchange for a fee. 89*5084e753SMark J. Nelson 90*5084e753SMark J. Nelson 2. You may modify your copy or copies of the Program or any portion 91*5084e753SMark J. Nelsonof it, thus forming a work based on the Program, and copy and 92*5084e753SMark J. Nelsondistribute such modifications or work under the terms of Section 1 93*5084e753SMark J. Nelsonabove, provided that you also meet all of these conditions: 94*5084e753SMark J. Nelson 95*5084e753SMark J. Nelson a) You must cause the modified files to carry prominent notices 96*5084e753SMark J. Nelson stating that you changed the files and the date of any change. 97*5084e753SMark J. Nelson 98*5084e753SMark J. Nelson b) You must cause any work that you distribute or publish, that in 99*5084e753SMark J. 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You may copy and distribute the Program (or a work based on it, 135*5084e753SMark J. Nelsonunder Section 2) in object code or executable form under the terms of 136*5084e753SMark J. NelsonSections 1 and 2 above provided that you also do one of the following: 137*5084e753SMark J. Nelson 138*5084e753SMark J. Nelson a) Accompany it with the complete corresponding machine-readable 139*5084e753SMark J. Nelson source code, which must be distributed under the terms of Sections 140*5084e753SMark J. Nelson 1 and 2 above on a medium customarily used for software interchange; or, 141*5084e753SMark J. Nelson 142*5084e753SMark J. Nelson b) Accompany it with a written offer, valid for at least three 143*5084e753SMark J. Nelson years, to give any third party, for a charge no more than your 144*5084e753SMark J. Nelson cost of physically performing source distribution, a complete 145*5084e753SMark J. Nelson machine-readable copy of the corresponding source code, to be 146*5084e753SMark J. 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However, nothing else grants you permission to modify or 182*5084e753SMark J. Nelsondistribute the Program or its derivative works. These actions are 183*5084e753SMark J. Nelsonprohibited by law if you do not accept this License. Therefore, by 184*5084e753SMark J. Nelsonmodifying or distributing the Program (or any work based on the 185*5084e753SMark J. NelsonProgram), you indicate your acceptance of this License to do so, and 186*5084e753SMark J. Nelsonall its terms and conditions for copying, distributing or modifying 187*5084e753SMark J. Nelsonthe Program or works based on it. 188*5084e753SMark J. Nelson 189*5084e753SMark J. Nelson 6. Each time you redistribute the Program (or any work based on the 190*5084e753SMark J. NelsonProgram), the recipient automatically receives a license from the 191*5084e753SMark J. Nelsonoriginal licensor to copy, distribute or modify the Program subject to 192*5084e753SMark J. Nelsonthese terms and conditions. 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Nelsonmay not distribute the Program at all. For example, if a patent 205*5084e753SMark J. Nelsonlicense would not permit royalty-free redistribution of the Program by 206*5084e753SMark J. Nelsonall those who receive copies directly or indirectly through you, then 207*5084e753SMark J. Nelsonthe only way you could satisfy both it and this License would be to 208*5084e753SMark J. Nelsonrefrain entirely from distribution of the Program. 209*5084e753SMark J. Nelson 210*5084e753SMark J. NelsonIf any portion of this section is held invalid or unenforceable under 211*5084e753SMark J. Nelsonany particular circumstance, the balance of the section is intended to 212*5084e753SMark J. Nelsonapply and the section as a whole is intended to apply in other 213*5084e753SMark J. Nelsoncircumstances. 214*5084e753SMark J. Nelson 215*5084e753SMark J. NelsonIt is not the purpose of this section to induce you to infringe any 216*5084e753SMark J. 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Nelson 229*5084e753SMark J. Nelson 8. If the distribution and/or use of the Program is restricted in 230*5084e753SMark J. Nelsoncertain countries either by patents or by copyrighted interfaces, the 231*5084e753SMark J. Nelsonoriginal copyright holder who places the Program under this License 232*5084e753SMark J. Nelsonmay add an explicit geographical distribution limitation excluding 233*5084e753SMark J. Nelsonthose countries, so that distribution is permitted only in or among 234*5084e753SMark J. Nelsoncountries not thus excluded. In such case, this License incorporates 235*5084e753SMark J. Nelsonthe limitation as if written in the body of this License. 236*5084e753SMark J. Nelson 237*5084e753SMark J. Nelson 9. The Free Software Foundation may publish revised and/or new versions 238*5084e753SMark J. Nelsonof the General Public License from time to time. Such new versions will 239*5084e753SMark J. Nelsonbe similar in spirit to the present version, but may differ in detail to 240*5084e753SMark J. Nelsonaddress new problems or concerns. 241*5084e753SMark J. Nelson 242*5084e753SMark J. NelsonEach version is given a distinguishing version number. If the Program 243*5084e753SMark J. Nelsonspecifies a version number of this License which applies to it and "any 244*5084e753SMark J. Nelsonlater version", you have the option of following the terms and conditions 245*5084e753SMark J. Nelsoneither of that version or of any later version published by the Free 246*5084e753SMark J. NelsonSoftware Foundation. If the Program does not specify a version number of 247*5084e753SMark J. Nelsonthis License, you may choose any version ever published by the Free Software 248*5084e753SMark J. NelsonFoundation. 249*5084e753SMark J. Nelson 250*5084e753SMark J. Nelson 10. If you wish to incorporate parts of the Program into other free 251*5084e753SMark J. Nelsonprograms whose distribution conditions are different, write to the author 252*5084e753SMark J. Nelsonto ask for permission. For software which is copyrighted by the Free 253*5084e753SMark J. NelsonSoftware Foundation, write to the Free Software Foundation; we sometimes 254*5084e753SMark J. Nelsonmake exceptions for this. Our decision will be guided by the two goals 255*5084e753SMark J. Nelsonof preserving the free status of all derivatives of our free software and 256*5084e753SMark J. Nelsonof promoting the sharing and reuse of software generally. 257*5084e753SMark J. Nelson 258*5084e753SMark J. Nelson NO WARRANTY 259*5084e753SMark J. Nelson 260*5084e753SMark J. Nelson 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261*5084e753SMark J. NelsonFOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262*5084e753SMark J. NelsonOTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263*5084e753SMark J. NelsonPROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264*5084e753SMark J. NelsonOR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265*5084e753SMark J. NelsonMERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 266*5084e753SMark J. NelsonTO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267*5084e753SMark J. NelsonPROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268*5084e753SMark J. NelsonREPAIR OR CORRECTION. 269*5084e753SMark J. Nelson 270*5084e753SMark J. Nelson 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271*5084e753SMark J. NelsonWILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272*5084e753SMark J. NelsonREDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273*5084e753SMark J. NelsonINCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274*5084e753SMark J. NelsonOUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275*5084e753SMark J. NelsonTO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276*5084e753SMark J. NelsonYOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277*5084e753SMark J. NelsonPROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278*5084e753SMark J. NelsonPOSSIBILITY OF SUCH DAMAGES. 279*5084e753SMark J. Nelson 280*5084e753SMark J. Nelson END OF TERMS AND CONDITIONS 281*5084e753SMark J. Nelson 282*5084e753SMark J. Nelson How to Apply These Terms to Your New Programs 283*5084e753SMark J. Nelson 284*5084e753SMark J. Nelson If you develop a new program, and you want it to be of the greatest 285*5084e753SMark J. Nelsonpossible use to the public, the best way to achieve this is to make it 286*5084e753SMark J. Nelsonfree software which everyone can redistribute and change under these terms. 287*5084e753SMark J. Nelson 288*5084e753SMark J. Nelson To do so, attach the following notices to the program. It is safest 289*5084e753SMark J. Nelsonto attach them to the start of each source file to most effectively 290*5084e753SMark J. Nelsonconvey the exclusion of warranty; and each file should have at least 291*5084e753SMark J. Nelsonthe "copyright" line and a pointer to where the full notice is found. 292*5084e753SMark J. Nelson 293*5084e753SMark J. Nelson <one line to give the program's name and a brief idea of what it does.> 294*5084e753SMark J. Nelson Copyright (C) <year> <name of author> 295*5084e753SMark J. Nelson 296*5084e753SMark J. Nelson This program is free software; you can redistribute it and/or modify 297*5084e753SMark J. Nelson it under the terms of the GNU General Public License as published by 298*5084e753SMark J. Nelson the Free Software Foundation; either version 2 of the License, or 299*5084e753SMark J. Nelson (at your option) any later version. 300*5084e753SMark J. Nelson 301*5084e753SMark J. Nelson This program is distributed in the hope that it will be useful, 302*5084e753SMark J. Nelson but WITHOUT ANY WARRANTY; without even the implied warranty of 303*5084e753SMark J. Nelson MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304*5084e753SMark J. Nelson GNU General Public License for more details. 305*5084e753SMark J. Nelson 306*5084e753SMark J. Nelson You should have received a copy of the GNU General Public License along 307*5084e753SMark J. Nelson with this program; if not, write to the Free Software Foundation, Inc., 308*5084e753SMark J. Nelson 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309*5084e753SMark J. Nelson 310*5084e753SMark J. NelsonAlso add information on how to contact you by electronic and paper mail. 311*5084e753SMark J. Nelson 312*5084e753SMark J. NelsonIf the program is interactive, make it output a short notice like this 313*5084e753SMark J. Nelsonwhen it starts in an interactive mode: 314*5084e753SMark J. Nelson 315*5084e753SMark J. Nelson Gnomovision version 69, Copyright (C) year name of author 316*5084e753SMark J. Nelson Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317*5084e753SMark J. Nelson This is free software, and you are welcome to redistribute it 318*5084e753SMark J. Nelson under certain conditions; type `show c' for details. 319*5084e753SMark J. Nelson 320*5084e753SMark J. NelsonThe hypothetical commands `show w' and `show c' should show the appropriate 321*5084e753SMark J. Nelsonparts of the General Public License. Of course, the commands you use may 322*5084e753SMark J. Nelsonbe called something other than `show w' and `show c'; they could even be 323*5084e753SMark J. Nelsonmouse-clicks or menu items--whatever suits your program. 324*5084e753SMark J. Nelson 325*5084e753SMark J. NelsonYou should also get your employer (if you work as a programmer) or your 326*5084e753SMark J. Nelsonschool, if any, to sign a "copyright disclaimer" for the program, if 327*5084e753SMark J. Nelsonnecessary. Here is a sample; alter the names: 328*5084e753SMark J. Nelson 329*5084e753SMark J. Nelson Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330*5084e753SMark J. Nelson `Gnomovision' (which makes passes at compilers) written by James Hacker. 331*5084e753SMark J. Nelson 332*5084e753SMark J. Nelson <signature of Ty Coon>, 1 April 1989 333*5084e753SMark J. Nelson Ty Coon, President of Vice 334*5084e753SMark J. Nelson 335*5084e753SMark J. NelsonThis General Public License does not permit incorporating your program into 336*5084e753SMark J. Nelsonproprietary programs. If your program is a subroutine library, you may 337*5084e753SMark J. Nelsonconsider it more useful to permit linking proprietary applications with the 338*5084e753SMark J. Nelsonlibrary. If this is what you want to do, use the GNU Lesser General 339*5084e753SMark J. NelsonPublic License instead of this License. 340