1*4882a593Smuzhiyun GNU GENERAL PUBLIC LICENSE 2*4882a593Smuzhiyun Version 2, June 1991 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun Copyright (C) 1989, 1991 Free Software Foundation, Inc. 5*4882a593Smuzhiyun 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 6*4882a593Smuzhiyun Everyone is permitted to copy and distribute verbatim copies 7*4882a593Smuzhiyun of this license document, but changing it is not allowed. 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun Preamble 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun The licenses for most software are designed to take away your 12*4882a593Smuzhiyunfreedom to share and change it. By contrast, the GNU General Public 13*4882a593SmuzhiyunLicense is intended to guarantee your freedom to share and change free 14*4882a593Smuzhiyunsoftware--to make sure the software is free for all its users. This 15*4882a593SmuzhiyunGeneral Public License applies to most of the Free Software 16*4882a593SmuzhiyunFoundation's software and to any other program whose authors commit to 17*4882a593Smuzhiyunusing it. (Some other Free Software Foundation software is covered by 18*4882a593Smuzhiyunthe GNU Library General Public License instead.) You can apply it to 19*4882a593Smuzhiyunyour programs, too. 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun When we speak of free software, we are referring to freedom, not 22*4882a593Smuzhiyunprice. Our General Public Licenses are designed to make sure that you 23*4882a593Smuzhiyunhave the freedom to distribute copies of free software (and charge for 24*4882a593Smuzhiyunthis service if you wish), that you receive source code or can get it 25*4882a593Smuzhiyunif you want it, that you can change the software or use pieces of it 26*4882a593Smuzhiyunin new free programs; and that you know you can do these things. 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun To protect your rights, we need to make restrictions that forbid 29*4882a593Smuzhiyunanyone to deny you these rights or to ask you to surrender the rights. 30*4882a593SmuzhiyunThese restrictions translate to certain responsibilities for you if you 31*4882a593Smuzhiyundistribute copies of the software, or if you modify it. 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun For example, if you distribute copies of such a program, whether 34*4882a593Smuzhiyungratis or for a fee, you must give the recipients all the rights that 35*4882a593Smuzhiyunyou have. You must make sure that they, too, receive or can get the 36*4882a593Smuzhiyunsource code. And you must show them these terms so they know their 37*4882a593Smuzhiyunrights. 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun We protect your rights with two steps: (1) copyright the software, and 40*4882a593Smuzhiyun(2) offer you this license which gives you legal permission to copy, 41*4882a593Smuzhiyundistribute and/or modify the software. 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun Also, for each author's protection and ours, we want to make certain 44*4882a593Smuzhiyunthat everyone understands that there is no warranty for this free 45*4882a593Smuzhiyunsoftware. If the software is modified by someone else and passed on, we 46*4882a593Smuzhiyunwant its recipients to know that what they have is not the original, so 47*4882a593Smuzhiyunthat any problems introduced by others will not reflect on the original 48*4882a593Smuzhiyunauthors' reputations. 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun Finally, any free program is threatened constantly by software 51*4882a593Smuzhiyunpatents. We wish to avoid the danger that redistributors of a free 52*4882a593Smuzhiyunprogram will individually obtain patent licenses, in effect making the 53*4882a593Smuzhiyunprogram proprietary. To prevent this, we have made it clear that any 54*4882a593Smuzhiyunpatent must be licensed for everyone's free use or not licensed at all. 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun The precise terms and conditions for copying, distribution and 57*4882a593Smuzhiyunmodification follow. 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun GNU GENERAL PUBLIC LICENSE 60*4882a593Smuzhiyun TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun 0. This License applies to any program or other work which contains 63*4882a593Smuzhiyuna notice placed by the copyright holder saying it may be distributed 64*4882a593Smuzhiyununder the terms of this General Public License. The "Program", below, 65*4882a593Smuzhiyunrefers to any such program or work, and a "work based on the Program" 66*4882a593Smuzhiyunmeans either the Program or any derivative work under copyright law: 67*4882a593Smuzhiyunthat is to say, a work containing the Program or a portion of it, 68*4882a593Smuzhiyuneither verbatim or with modifications and/or translated into another 69*4882a593Smuzhiyunlanguage. (Hereinafter, translation is included without limitation in 70*4882a593Smuzhiyunthe term "modification".) Each licensee is addressed as "you". 71*4882a593Smuzhiyun 72*4882a593SmuzhiyunActivities other than copying, distribution and modification are not 73*4882a593Smuzhiyuncovered by this License; they are outside its scope. The act of 74*4882a593Smuzhiyunrunning the Program is not restricted, and the output from the Program 75*4882a593Smuzhiyunis covered only if its contents constitute a work based on the 76*4882a593SmuzhiyunProgram (independent of having been made by running the Program). 77*4882a593SmuzhiyunWhether that is true depends on what the Program does. 78*4882a593Smuzhiyun 79*4882a593Smuzhiyun 1. You may copy and distribute verbatim copies of the Program's 80*4882a593Smuzhiyunsource code as you receive it, in any medium, provided that you 81*4882a593Smuzhiyunconspicuously and appropriately publish on each copy an appropriate 82*4882a593Smuzhiyuncopyright notice and disclaimer of warranty; keep intact all the 83*4882a593Smuzhiyunnotices that refer to this License and to the absence of any warranty; 84*4882a593Smuzhiyunand give any other recipients of the Program a copy of this License 85*4882a593Smuzhiyunalong with the Program. 86*4882a593Smuzhiyun 87*4882a593SmuzhiyunYou may charge a fee for the physical act of transferring a copy, and 88*4882a593Smuzhiyunyou may at your option offer warranty protection in exchange for a fee. 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun 2. You may modify your copy or copies of the Program or any portion 91*4882a593Smuzhiyunof it, thus forming a work based on the Program, and copy and 92*4882a593Smuzhiyundistribute such modifications or work under the terms of Section 1 93*4882a593Smuzhiyunabove, provided that you also meet all of these conditions: 94*4882a593Smuzhiyun 95*4882a593Smuzhiyun a) You must cause the modified files to carry prominent notices 96*4882a593Smuzhiyun stating that you changed the files and the date of any change. 97*4882a593Smuzhiyun 98*4882a593Smuzhiyun b) You must cause any work that you distribute or publish, that in 99*4882a593Smuzhiyun whole or in part contains or is derived from the Program or any 100*4882a593Smuzhiyun part thereof, to be licensed as a whole at no charge to all third 101*4882a593Smuzhiyun parties under the terms of this License. 102*4882a593Smuzhiyun 103*4882a593Smuzhiyun c) If the modified program normally reads commands interactively 104*4882a593Smuzhiyun when run, you must cause it, when started running for such 105*4882a593Smuzhiyun interactive use in the most ordinary way, to print or display an 106*4882a593Smuzhiyun announcement including an appropriate copyright notice and a 107*4882a593Smuzhiyun notice that there is no warranty (or else, saying that you provide 108*4882a593Smuzhiyun a warranty) and that users may redistribute the program under 109*4882a593Smuzhiyun these conditions, and telling the user how to view a copy of this 110*4882a593Smuzhiyun License. (Exception: if the Program itself is interactive but 111*4882a593Smuzhiyun does not normally print such an announcement, your work based on 112*4882a593Smuzhiyun the Program is not required to print an announcement.) 113*4882a593Smuzhiyun 114*4882a593SmuzhiyunThese requirements apply to the modified work as a whole. If 115*4882a593Smuzhiyunidentifiable sections of that work are not derived from the Program, 116*4882a593Smuzhiyunand can be reasonably considered independent and separate works in 117*4882a593Smuzhiyunthemselves, then this License, and its terms, do not apply to those 118*4882a593Smuzhiyunsections when you distribute them as separate works. But when you 119*4882a593Smuzhiyundistribute the same sections as part of a whole which is a work based 120*4882a593Smuzhiyunon the Program, the distribution of the whole must be on the terms of 121*4882a593Smuzhiyunthis License, whose permissions for other licensees extend to the 122*4882a593Smuzhiyunentire whole, and thus to each and every part regardless of who wrote it. 123*4882a593Smuzhiyun 124*4882a593SmuzhiyunThus, it is not the intent of this section to claim rights or contest 125*4882a593Smuzhiyunyour rights to work written entirely by you; rather, the intent is to 126*4882a593Smuzhiyunexercise the right to control the distribution of derivative or 127*4882a593Smuzhiyuncollective works based on the Program. 128*4882a593Smuzhiyun 129*4882a593SmuzhiyunIn addition, mere aggregation of another work not based on the Program 130*4882a593Smuzhiyunwith the Program (or with a work based on the Program) on a volume of 131*4882a593Smuzhiyuna storage or distribution medium does not bring the other work under 132*4882a593Smuzhiyunthe scope of this License. 133*4882a593Smuzhiyun 134*4882a593Smuzhiyun 3. You may copy and distribute the Program (or a work based on it, 135*4882a593Smuzhiyununder Section 2) in object code or executable form under the terms of 136*4882a593SmuzhiyunSections 1 and 2 above provided that you also do one of the following: 137*4882a593Smuzhiyun 138*4882a593Smuzhiyun a) Accompany it with the complete corresponding machine-readable 139*4882a593Smuzhiyun source code, which must be distributed under the terms of Sections 140*4882a593Smuzhiyun 1 and 2 above on a medium customarily used for software interchange; or, 141*4882a593Smuzhiyun 142*4882a593Smuzhiyun b) Accompany it with a written offer, valid for at least three 143*4882a593Smuzhiyun years, to give any third party, for a charge no more than your 144*4882a593Smuzhiyun cost of physically performing source distribution, a complete 145*4882a593Smuzhiyun machine-readable copy of the corresponding source code, to be 146*4882a593Smuzhiyun distributed under the terms of Sections 1 and 2 above on a medium 147*4882a593Smuzhiyun customarily used for software interchange; or, 148*4882a593Smuzhiyun 149*4882a593Smuzhiyun c) Accompany it with the information you received as to the offer 150*4882a593Smuzhiyun to distribute corresponding source code. (This alternative is 151*4882a593Smuzhiyun allowed only for noncommercial distribution and only if you 152*4882a593Smuzhiyun received the program in object code or executable form with such 153*4882a593Smuzhiyun an offer, in accord with Subsection b above.) 154*4882a593Smuzhiyun 155*4882a593SmuzhiyunThe source code for a work means the preferred form of the work for 156*4882a593Smuzhiyunmaking modifications to it. For an executable work, complete source 157*4882a593Smuzhiyuncode means all the source code for all modules it contains, plus any 158*4882a593Smuzhiyunassociated interface definition files, plus the scripts used to 159*4882a593Smuzhiyuncontrol compilation and installation of the executable. However, as a 160*4882a593Smuzhiyunspecial exception, the source code distributed need not include 161*4882a593Smuzhiyunanything that is normally distributed (in either source or binary 162*4882a593Smuzhiyunform) with the major components (compiler, kernel, and so on) of the 163*4882a593Smuzhiyunoperating system on which the executable runs, unless that component 164*4882a593Smuzhiyunitself accompanies the executable. 165*4882a593Smuzhiyun 166*4882a593SmuzhiyunIf distribution of executable or object code is made by offering 167*4882a593Smuzhiyunaccess to copy from a designated place, then offering equivalent 168*4882a593Smuzhiyunaccess to copy the source code from the same place counts as 169*4882a593Smuzhiyundistribution of the source code, even though third parties are not 170*4882a593Smuzhiyuncompelled to copy the source along with the object code. 171*4882a593Smuzhiyun 172*4882a593Smuzhiyun 4. You may not copy, modify, sublicense, or distribute the Program 173*4882a593Smuzhiyunexcept as expressly provided under this License. Any attempt 174*4882a593Smuzhiyunotherwise to copy, modify, sublicense or distribute the Program is 175*4882a593Smuzhiyunvoid, and will automatically terminate your rights under this License. 176*4882a593SmuzhiyunHowever, parties who have received copies, or rights, from you under 177*4882a593Smuzhiyunthis License will not have their licenses terminated so long as such 178*4882a593Smuzhiyunparties remain in full compliance. 179*4882a593Smuzhiyun 180*4882a593Smuzhiyun 5. You are not required to accept this License, since you have not 181*4882a593Smuzhiyunsigned it. However, nothing else grants you permission to modify or 182*4882a593Smuzhiyundistribute the Program or its derivative works. These actions are 183*4882a593Smuzhiyunprohibited by law if you do not accept this License. Therefore, by 184*4882a593Smuzhiyunmodifying or distributing the Program (or any work based on the 185*4882a593SmuzhiyunProgram), you indicate your acceptance of this License to do so, and 186*4882a593Smuzhiyunall its terms and conditions for copying, distributing or modifying 187*4882a593Smuzhiyunthe Program or works based on it. 188*4882a593Smuzhiyun 189*4882a593Smuzhiyun 6. Each time you redistribute the Program (or any work based on the 190*4882a593SmuzhiyunProgram), the recipient automatically receives a license from the 191*4882a593Smuzhiyunoriginal licensor to copy, distribute or modify the Program subject to 192*4882a593Smuzhiyunthese terms and conditions. You may not impose any further 193*4882a593Smuzhiyunrestrictions on the recipients' exercise of the rights granted herein. 194*4882a593SmuzhiyunYou are not responsible for enforcing compliance by third parties to 195*4882a593Smuzhiyunthis License. 196*4882a593Smuzhiyun 197*4882a593Smuzhiyun 7. If, as a consequence of a court judgment or allegation of patent 198*4882a593Smuzhiyuninfringement or for any other reason (not limited to patent issues), 199*4882a593Smuzhiyunconditions are imposed on you (whether by court order, agreement or 200*4882a593Smuzhiyunotherwise) that contradict the conditions of this License, they do not 201*4882a593Smuzhiyunexcuse you from the conditions of this License. If you cannot 202*4882a593Smuzhiyundistribute so as to satisfy simultaneously your obligations under this 203*4882a593SmuzhiyunLicense and any other pertinent obligations, then as a consequence you 204*4882a593Smuzhiyunmay not distribute the Program at all. For example, if a patent 205*4882a593Smuzhiyunlicense would not permit royalty-free redistribution of the Program by 206*4882a593Smuzhiyunall those who receive copies directly or indirectly through you, then 207*4882a593Smuzhiyunthe only way you could satisfy both it and this License would be to 208*4882a593Smuzhiyunrefrain entirely from distribution of the Program. 209*4882a593Smuzhiyun 210*4882a593SmuzhiyunIf any portion of this section is held invalid or unenforceable under 211*4882a593Smuzhiyunany particular circumstance, the balance of the section is intended to 212*4882a593Smuzhiyunapply and the section as a whole is intended to apply in other 213*4882a593Smuzhiyuncircumstances. 214*4882a593Smuzhiyun 215*4882a593SmuzhiyunIt is not the purpose of this section to induce you to infringe any 216*4882a593Smuzhiyunpatents or other property right claims or to contest validity of any 217*4882a593Smuzhiyunsuch claims; this section has the sole purpose of protecting the 218*4882a593Smuzhiyunintegrity of the free software distribution system, which is 219*4882a593Smuzhiyunimplemented by public license practices. Many people have made 220*4882a593Smuzhiyungenerous contributions to the wide range of software distributed 221*4882a593Smuzhiyunthrough that system in reliance on consistent application of that 222*4882a593Smuzhiyunsystem; it is up to the author/donor to decide if he or she is willing 223*4882a593Smuzhiyunto distribute software through any other system and a licensee cannot 224*4882a593Smuzhiyunimpose that choice. 225*4882a593Smuzhiyun 226*4882a593SmuzhiyunThis section is intended to make thoroughly clear what is believed to 227*4882a593Smuzhiyunbe a consequence of the rest of this License. 228*4882a593Smuzhiyun 229*4882a593Smuzhiyun 8. If the distribution and/or use of the Program is restricted in 230*4882a593Smuzhiyuncertain countries either by patents or by copyrighted interfaces, the 231*4882a593Smuzhiyunoriginal copyright holder who places the Program under this License 232*4882a593Smuzhiyunmay add an explicit geographical distribution limitation excluding 233*4882a593Smuzhiyunthose countries, so that distribution is permitted only in or among 234*4882a593Smuzhiyuncountries not thus excluded. In such case, this License incorporates 235*4882a593Smuzhiyunthe limitation as if written in the body of this License. 236*4882a593Smuzhiyun 237*4882a593Smuzhiyun 9. The Free Software Foundation may publish revised and/or new versions 238*4882a593Smuzhiyunof the General Public License from time to time. Such new versions will 239*4882a593Smuzhiyunbe similar in spirit to the present version, but may differ in detail to 240*4882a593Smuzhiyunaddress new problems or concerns. 241*4882a593Smuzhiyun 242*4882a593SmuzhiyunEach version is given a distinguishing version number. If the Program 243*4882a593Smuzhiyunspecifies a version number of this License which applies to it and "any 244*4882a593Smuzhiyunlater version", you have the option of following the terms and conditions 245*4882a593Smuzhiyuneither of that version or of any later version published by the Free 246*4882a593SmuzhiyunSoftware Foundation. If the Program does not specify a version number of 247*4882a593Smuzhiyunthis License, you may choose any version ever published by the Free Software 248*4882a593SmuzhiyunFoundation. 249*4882a593Smuzhiyun 250*4882a593Smuzhiyun 10. If you wish to incorporate parts of the Program into other free 251*4882a593Smuzhiyunprograms whose distribution conditions are different, write to the author 252*4882a593Smuzhiyunto ask for permission. For software which is copyrighted by the Free 253*4882a593SmuzhiyunSoftware Foundation, write to the Free Software Foundation; we sometimes 254*4882a593Smuzhiyunmake exceptions for this. Our decision will be guided by the two goals 255*4882a593Smuzhiyunof preserving the free status of all derivatives of our free software and 256*4882a593Smuzhiyunof promoting the sharing and reuse of software generally. 257*4882a593Smuzhiyun 258*4882a593Smuzhiyun NO WARRANTY 259*4882a593Smuzhiyun 260*4882a593Smuzhiyun 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261*4882a593SmuzhiyunFOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262*4882a593SmuzhiyunOTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263*4882a593SmuzhiyunPROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264*4882a593SmuzhiyunOR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265*4882a593SmuzhiyunMERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 266*4882a593SmuzhiyunTO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267*4882a593SmuzhiyunPROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268*4882a593SmuzhiyunREPAIR OR CORRECTION. 269*4882a593Smuzhiyun 270*4882a593Smuzhiyun 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271*4882a593SmuzhiyunWILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272*4882a593SmuzhiyunREDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273*4882a593SmuzhiyunINCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274*4882a593SmuzhiyunOUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275*4882a593SmuzhiyunTO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276*4882a593SmuzhiyunYOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277*4882a593SmuzhiyunPROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278*4882a593SmuzhiyunPOSSIBILITY OF SUCH DAMAGES. 279*4882a593Smuzhiyun 280*4882a593Smuzhiyun END OF TERMS AND CONDITIONS 281*4882a593Smuzhiyun 282*4882a593Smuzhiyun How to Apply These Terms to Your New Programs 283*4882a593Smuzhiyun 284*4882a593Smuzhiyun If you develop a new program, and you want it to be of the greatest 285*4882a593Smuzhiyunpossible use to the public, the best way to achieve this is to make it 286*4882a593Smuzhiyunfree software which everyone can redistribute and change under these terms. 287*4882a593Smuzhiyun 288*4882a593Smuzhiyun To do so, attach the following notices to the program. It is safest 289*4882a593Smuzhiyunto attach them to the start of each source file to most effectively 290*4882a593Smuzhiyunconvey the exclusion of warranty; and each file should have at least 291*4882a593Smuzhiyunthe "copyright" line and a pointer to where the full notice is found. 292*4882a593Smuzhiyun 293*4882a593Smuzhiyun <one line to give the program's name and a brief idea of what it does.> 294*4882a593Smuzhiyun Copyright (C) <year> <name of author> 295*4882a593Smuzhiyun 296*4882a593Smuzhiyun This program is free software; you can redistribute it and/or modify 297*4882a593Smuzhiyun it under the terms of the GNU General Public License as published by 298*4882a593Smuzhiyun the Free Software Foundation; either version 2 of the License, or 299*4882a593Smuzhiyun (at your option) any later version. 300*4882a593Smuzhiyun 301*4882a593Smuzhiyun This program is distributed in the hope that it will be useful, 302*4882a593Smuzhiyun but WITHOUT ANY WARRANTY; without even the implied warranty of 303*4882a593Smuzhiyun MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304*4882a593Smuzhiyun GNU General Public License for more details. 305*4882a593Smuzhiyun 306*4882a593Smuzhiyun You should have received a copy of the GNU General Public License 307*4882a593Smuzhiyun along with this program; if not, write to the Free Software 308*4882a593Smuzhiyun Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 309*4882a593Smuzhiyun 310*4882a593Smuzhiyun 311*4882a593SmuzhiyunAlso add information on how to contact you by electronic and paper mail. 312*4882a593Smuzhiyun 313*4882a593SmuzhiyunIf the program is interactive, make it output a short notice like this 314*4882a593Smuzhiyunwhen it starts in an interactive mode: 315*4882a593Smuzhiyun 316*4882a593Smuzhiyun Gnomovision version 69, Copyright (C) year name of author 317*4882a593Smuzhiyun Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 318*4882a593Smuzhiyun This is free software, and you are welcome to redistribute it 319*4882a593Smuzhiyun under certain conditions; type `show c' for details. 320*4882a593Smuzhiyun 321*4882a593SmuzhiyunThe hypothetical commands `show w' and `show c' should show the appropriate 322*4882a593Smuzhiyunparts of the General Public License. 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If your program is a subroutine library, you may 338*4882a593Smuzhiyunconsider it more useful to permit linking proprietary applications with the 339*4882a593Smuzhiyunlibrary. If this is what you want to do, use the GNU Library General 340*4882a593SmuzhiyunPublic License instead of this License. 341*4882a593Smuzhiyun 342*4882a593Smuzhiyun 343*4882a593Smuzhiyun 344*4882a593Smuzhiyun 345*4882a593Smuzhiyun 346*4882a593Smuzhiyun GNU LESSER GENERAL PUBLIC LICENSE 347*4882a593Smuzhiyun Version 2.1, February 1999 348*4882a593Smuzhiyun 349*4882a593Smuzhiyun Copyright (C) 1991, 1999 Free Software Foundation, Inc. 350*4882a593Smuzhiyun 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 351*4882a593Smuzhiyun Everyone is permitted to copy and distribute verbatim copies 352*4882a593Smuzhiyun of this license document, but changing it is not allowed. 353*4882a593Smuzhiyun 354*4882a593Smuzhiyun[This is the first released version of the Lesser GPL. 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