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