| 1 | Copyright (c) 2007 Softwell Sas - Milano - Italy |
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| 2 | |
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| 3 | Giovanni Porcari |
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| 4 | Francesco Cavazzana |
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| 5 | Saverio Porcari |
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| 6 | Francesco Porcari |
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| 7 | |
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| 8 | Open Source License: |
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| 9 | |
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| 10 | GNU Lesser General Public License |
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| 11 | |
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| 12 | Version 2.1, February 1999 |
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| 13 | |
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| 14 | Copyright (C) 1991, 1999 Free Software Foundation, Inc. 59 Temple Place, |
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| 15 | Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and |
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| 16 | distribute verbatim copies of this license document, but changing it is not |
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| 17 | allowed. |
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| 18 | |
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| 19 | [This is the first released version of the Lesser GPL. It also counts as the |
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| 20 | successor of the GNU Library Public License, version 2, hence the version |
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| 21 | number 2.1.] |
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| 22 | |
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| 23 | Preamble |
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| 24 | |
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| 25 | The licenses for most software are designed to take away your freedom to share |
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| 26 | and change it. By contrast, the GNU General Public Licenses are intended to |
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| 27 | guarantee your freedom to share and change free software--to make sure the |
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| 28 | software is free for all its users. |
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| 29 | |
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| 30 | This license, the Lesser General Public License, applies to some specially |
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| 31 | designated software packages--typically libraries--of the Free Software |
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| 32 | Foundation and other authors who decide to use it. You can use it too, but we |
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| 33 | suggest you first think carefully about whether this license or the ordinary |
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| 34 | General Public License is the better strategy to use in any particular case, |
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| 35 | based on the explanations below. |
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| 36 | |
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| 37 | When we speak of free software, we are referring to freedom of use, not price. |
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| 38 | Our General Public Licenses are designed to make sure that you have the |
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| 39 | freedom to distribute copies of free software (and charge for this service if |
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| 40 | you wish); that you receive source code or can get it if you want it; that you |
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| 41 | can change the software and use pieces of it in new free programs; and that |
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| 42 | you are informed that you can do these things. |
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| 43 | |
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| 44 | To protect your rights, we need to make restrictions that forbid distributors |
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| 45 | to deny you these rights or to ask you to surrender these rights. These |
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| 46 | restrictions translate to certain responsibilities for you if you distribute |
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| 47 | copies of the library or if you modify it. |
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| 48 | |
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| 49 | For example, if you distribute copies of the library, whether gratis or for a |
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| 50 | fee, you must give the recipients all the rights that we gave you. You must |
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| 51 | make sure that they, too, receive or can get the source code. If you link |
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| 52 | other code with the library, you must provide complete object files to the |
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| 53 | recipients, so that they can relink them with the library after making changes |
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| 54 | to the library and recompiling it. And you must show them these terms so they |
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| 55 | know their rights. |
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| 56 | |
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| 57 | We protect your rights with a two-step method: (1) we copyright the library, |
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| 58 | and (2) we offer you this license, which gives you legal permission to copy, |
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| 59 | distribute and/or modify the library. |
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| 60 | |
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| 61 | To protect each distributor, we want to make it very clear that there is no |
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| 62 | warranty for the free library. Also, if the library is modified by someone |
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| 63 | else and passed on, the recipients should know that what they have is not the |
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| 64 | original version, so that the original author's reputation will not be |
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| 65 | affected by problems that might be introduced by others. |
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| 66 | |
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| 67 | Finally, software patents pose a constant threat to the existence of any free |
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| 68 | program. We wish to make sure that a company cannot effectively restrict the |
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| 69 | users of a free program by obtaining a restrictive license from a patent |
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| 70 | holder. Therefore, we insist that any patent license obtained for a version of |
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| 71 | the library must be consistent with the full freedom of use specified in this |
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| 72 | license. |
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| 73 | |
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| 74 | Most GNU software, including some libraries, is covered by the ordinary GNU |
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| 75 | General Public License. This license, the GNU Lesser General Public License, |
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| 76 | applies to certain designated libraries, and is quite different from the |
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| 77 | ordinary General Public License. We use this license for certain libraries in |
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| 78 | order to permit linking those libraries into non-free programs. |
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| 79 | |
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| 80 | When a program is linked with a library, whether statically or using a shared |
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| 81 | library, the combination of the two is legally speaking a combined work, a |
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| 82 | derivative of the original library. The ordinary General Public License |
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| 83 | therefore permits such linking only if the entire combination fits its |
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| 84 | criteria of freedom. The Lesser General Public License permits more lax |
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| 85 | criteria for linking other code with the library. |
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| 86 | |
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| 87 | We call this license the "Lesser" General Public License because it does Less |
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| 88 | to protect the user's freedom than the ordinary General Public License. It |
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| 89 | also provides other free software developers Less of an advantage over |
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| 90 | competing non-free programs. These disadvantages are the reason we use the |
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| 91 | ordinary General Public License for many libraries. However, the Lesser |
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| 92 | license provides advantages in certain special circumstances. |
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| 93 | |
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| 94 | For example, on rare occasions, there may be a special need to encourage the |
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| 95 | widest possible use of a certain library, so that it becomes a de-facto |
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| 96 | standard. To achieve this, non-free programs must be allowed to use the |
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| 97 | library. A more frequent case is that a free library does the same job as |
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| 98 | widely used non-free libraries. In this case, there is little to gain by |
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| 99 | limiting the free library to free software only, so we use the Lesser General |
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| 100 | Public License. |
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| 101 | |
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| 102 | In other cases, permission to use a particular library in non-free programs |
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| 103 | enables a greater number of people to use a large body of free software. For |
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| 104 | example, permission to use the GNU C Library in non-free programs enables many |
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| 105 | more people to use the whole GNU operating system, as well as its variant, the |
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| 106 | GNU/Linux operating system. |
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| 107 | |
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| 108 | Although the Lesser General Public License is Less protective of the users' |
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| 109 | freedom, it does ensure that the user of a program that is linked with the |
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| 110 | Library has the freedom and the wherewithal to run that program using a |
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| 111 | modified version of the Library. |
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| 112 | |
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| 113 | The precise terms and conditions for copying, distribution and modification |
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| 114 | follow. Pay close attention to the difference between a "work based on the |
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| 115 | library" and a "work that uses the library". The former contains code derived |
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| 116 | from the library, whereas the latter must be combined with the library in |
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| 117 | order to run. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION |
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| 118 | |
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| 119 | 0. This License Agreement applies to any software library or other program |
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| 120 | which contains a notice placed by the copyright holder or other authorized |
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| 121 | party saying it may be distributed under the terms of this Lesser General |
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| 122 | Public License (also called "this License"). Each licensee is addressed as |
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| 123 | "you". |
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| 124 | |
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| 125 | A "library" means a collection of software functions and/or data prepared so |
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| 126 | as to be conveniently linked with application programs (which use some of |
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| 127 | those functions and data) to form executables. |
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| 128 | |
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| 129 | The "Library", below, refers to any such software library or work which has |
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| 130 | been distributed under these terms. A "work based on the Library" means either |
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| 131 | the Library or any derivative work under copyright law: that is to say, a work |
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| 133 | modifications and/or translated straightforwardly into another language. |
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| 134 | (Hereinafter, translation is included without limitation in the term |
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| 135 | "modification".) |
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| 137 | "Source code" for a work means the preferred form of the work for making |
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| 141 | library. |
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| 142 | |
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| 143 | Activities other than copying, distribution and modification are not covered |
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| 145 | using the Library is not restricted, and output from such a program is covered |
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| 146 | only if its contents constitute a work based on the Library (independent of |
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| 150 | 1. You may copy and distribute verbatim copies of the Library's complete |
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| 152 | and appropriately publish on each copy an appropriate copyright notice and |
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| 155 | along with the Library. |
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| 157 | You may charge a fee for the physical act of transferring a copy, and you may |
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| 158 | at your option offer warranty protection in exchange for a fee. |
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| 160 | 2. You may modify your copy or copies of the Library or any portion of it, |
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| 165 | a) The modified work must itself be a software library. |
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| 168 | you changed the files and the date of any change. |
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| 169 | |
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| 170 | c) You must cause the whole of the work to be licensed at no charge to all |
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| 171 | third parties under the terms of this License. |
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| 172 | |
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| 173 | d) If a facility in the modified Library refers to a function or a table of |
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| 174 | data to be supplied by an application program that uses the facility, other |
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| 176 | good faith effort to ensure that, in the event an application does not supply |
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| 177 | such function or table, the facility still operates, and performs whatever |
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| 178 | part of its purpose remains meaningful. |
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| 179 | |
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| 180 | (For example, a function in a library to compute square roots has a purpose |
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| 181 | that is entirely well-defined independent of the application. Therefore, |
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| 182 | Subsection 2d requires that any application-supplied function or table used by |
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| 183 | this function must be optional: if the application does not supply it, the |
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| 184 | square root function must still compute square roots.) |
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| 185 | |
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| 186 | These requirements apply to the modified work as a whole. If identifiable |
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| 189 | and its terms, do not apply to those sections when you distribute them as |
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| 192 | the terms of this License, whose permissions for other licensees extend to the |
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| 194 | |
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| 195 | Thus, it is not the intent of this section to claim rights or contest your |
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| 197 | right to control the distribution of derivative or collective works based on |
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| 200 | In addition, mere aggregation of another work not based on the Library with |
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| 201 | the Library (or with a work based on the Library) on a volume of a storage or |
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| 202 | distribution medium does not bring the other work under the scope of this |
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| 203 | License. |
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| 204 | |
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| 205 | 3. You may opt to apply the terms of the ordinary GNU General Public License |
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| 206 | instead of this License to a given copy of the Library. To do this, you must |
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| 207 | alter all the notices that refer to this License, so that they refer to the |
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| 208 | ordinary GNU General Public License, version 2, instead of to this License. |
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| 211 | make any other change in these notices. |
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| 212 | |
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| 213 | Once this change is made in a given copy, it is irreversible for that copy, so |
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| 217 | This option is useful when you wish to copy part of the code of the Library |
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| 220 | 4. You may copy and distribute the Library (or a portion or derivative of it, |
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| 222 | 1 and 2 above provided that you accompany it with the complete corresponding |
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| 232 | 5. A program that contains no derivative of any portion of the Library, but is |
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| 236 | License. |
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| 238 | However, linking a "work that uses the Library" with the Library creates an |
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| 244 | When a "work that uses the Library" uses material from a header file that is |
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| 251 | If such an object file uses only numerical parameters, data structure layouts |
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| 255 | code plus portions of the Library will still fall under Section 6.) |
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| 256 | |
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| 257 | Otherwise, if the work is a derivative of the Library, you may distribute the |
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| 260 | directly with the Library itself. |
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| 261 | |
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| 262 | 6. As an exception to the Sections above, you may also combine or link a "work |
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| 266 | reverse engineering for debugging such modifications. |
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| 267 | |
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| 268 | You must give prominent notice with each copy of the work that the Library is |
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| 269 | used in it and that the Library and its use are covered by this License. You |
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| 271 | copyright notices, you must include the copyright notice for the Library among |
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| 273 | Also, you must do one of these things: |
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| 275 | a) Accompany the work with the complete corresponding machine-readable source |
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| 284 | |
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| 285 | b) Use a suitable shared library mechanism for linking with the Library. A |
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| 292 | c) Accompany the work with a written offer, valid for at least three years, |
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| 311 | It may happen that this requirement contradicts the license restrictions of |
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| 315 | |
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| 316 | 7. You may place library facilities that are a work based on the Library |
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| 317 | side-by-side in a single library together with other library facilities not |
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| 319 | the separate distribution of the work based on the Library and of the other |
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| 323 | a) Accompany the combined library with a copy of the same work based on the |
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| 327 | b) Give prominent notice with the combined library of the fact that part of |
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| 331 | 8. You may not copy, modify, sublicense, link with, or distribute the Library |
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| 338 | 9. You are not required to accept this License, since you have not signed it. |
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| 339 | However, nothing else grants you permission to modify or distribute the |
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| 346 | 10. Each time you redistribute the Library (or any work based on the Library), |
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| 353 | 11. If, as a consequence of a court judgment or allegation of patent |
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| 354 | infringement or for any other reason (not limited to patent issues), |
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| 355 | conditions are imposed on you (whether by court order, agreement or otherwise) |
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| 356 | that contradict the conditions of this License, they do not excuse you from |
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| 357 | the conditions of this License. If you cannot distribute so as to satisfy |
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| 358 | simultaneously your obligations under this License and any other pertinent |
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| 359 | obligations, then as a consequence you may not distribute the Library at all. |
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| 360 | For example, if a patent license would not permit royalty-free redistribution |
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| 361 | of the Library by all those who receive copies directly or indirectly through |
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| 362 | you, then the only way you could satisfy both it and this License would be to |
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| 363 | refrain entirely from distribution of the Library. |
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| 364 | |
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| 365 | If any portion of this section is held invalid or unenforceable under any |
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| 366 | particular circumstance, the balance of the section is intended to apply, and |
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| 367 | the section as a whole is intended to apply in other circumstances. |
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| 368 | |
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| 369 | It is not the purpose of this section to induce you to infringe any patents or |
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| 370 | other property right claims or to contest validity of any such claims; this |
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| 371 | section has the sole purpose of protecting the integrity of the free software |
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| 372 | distribution system which is implemented by public license practices. Many |
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| 373 | people have made generous contributions to the wide range of software |
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| 374 | distributed through that system in reliance on consistent application of that |
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| 375 | system; it is up to the author/donor to decide if he or she is willing to |
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| 376 | distribute software through any other system and a licensee cannot impose that |
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| 377 | choice. |
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| 378 | |
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| 379 | This section is intended to make thoroughly clear what is believed to be a |
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| 380 | consequence of the rest of this License. |
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| 381 | |
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| 382 | 12. If the distribution and/or use of the Library is restricted in certain |
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| 383 | countries either by patents or by copyrighted interfaces, the original |
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| 384 | copyright holder who places the Library under this License may add an explicit |
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| 385 | geographical distribution limitation excluding those countries, so that |
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| 386 | distribution is permitted only in or among countries not thus excluded. In |
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| 387 | such case, this License incorporates the limitation as if written in the body |
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| 388 | of this License. |
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| 389 | |
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| 390 | 13. The Free Software Foundation may publish revised and/or new versions of |
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| 391 | the Lesser General Public License from time to time. Such new versions will be |
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| 392 | similar in spirit to the present version, but may differ in detail to address |
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| 393 | new problems or concerns. |
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| 394 | |
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| 395 | Each version is given a distinguishing version number. If the Library |
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| 396 | specifies a version number of this License which applies to it and "any later |
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| 397 | version", you have the option of following the terms and conditions either of |
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| 398 | that version or of any later version published by the Free Software |
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| 399 | Foundation. If the Library does not specify a license version number, you may |
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| 400 | choose any version ever published by the Free Software Foundation. |
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| 401 | |
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| 402 | 14. If you wish to incorporate parts of the Library into other free programs |
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| 403 | whose distribution conditions are incompatible with these, write to the author |
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| 404 | to ask for permission. For software which is copyrighted by the Free Software |
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| 405 | Foundation, write to the Free Software Foundation; we sometimes make |
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| 406 | exceptions for this. Our decision will be guided by the two goals of |
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| 407 | preserving the free status of all derivatives of our free software and of |
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| 408 | promoting the sharing and reuse of software generally. |
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| 409 | |
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| 410 | NO WARRANTY |
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| 411 | |
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| 412 | 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR |
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| 413 | THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE |
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| 414 | STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE |
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| 415 | LIBRARY "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, |
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| 416 | INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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| 417 | FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND |
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| 418 | PERFORMANCE OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, |
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| 419 | YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. |
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| 420 | |
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| 421 | 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL |
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| 422 | ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE |
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| 423 | THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY |
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| 424 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE |
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| 425 | OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR |
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| 426 | DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR |
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| 427 | A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH |
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| 428 | HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END |
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| 429 | OF TERMS AND CONDITIONS |
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