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1 GNU LESSER GENERAL PUBLIC LICENSE
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2 Version 3, 29 June 2007
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3
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4 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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5 Everyone is permitted to copy and distribute verbatim copies
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6 of this license document, but changing it is not allowed.
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7
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8
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9 This version of the GNU Lesser General Public License incorporates
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10 the terms and conditions of version 3 of the GNU General Public
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11 License, supplemented by the additional permissions listed below.
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12
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13 0. Additional Definitions.
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14
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15 As used herein, "this License" refers to version 3 of the GNU Lesser
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16 General Public License, and the "GNU GPL" refers to version 3 of the GNU
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17 General Public License.
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18
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19 "The Library" refers to a covered work governed by this License,
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20 other than an Application or a Combined Work as defined below.
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21
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22 An "Application" is any work that makes use of an interface provided
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23 by the Library, but which is not otherwise based on the Library.
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24 Defining a subclass of a class defined by the Library is deemed a mode
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25 of using an interface provided by the Library.
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26
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27 A "Combined Work" is a work produced by combining or linking an
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28 Application with the Library. The particular version of the Library
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29 with which the Combined Work was made is also called the "Linked
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30 Version".
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31
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32 The "Minimal Corresponding Source" for a Combined Work means the
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33 Corresponding Source for the Combined Work, excluding any source code
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34 for portions of the Combined Work that, considered in isolation, are
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35 based on the Application, and not on the Linked Version.
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36
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37 The "Corresponding Application Code" for a Combined Work means the
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38 object code and/or source code for the Application, including any data
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39 and utility programs needed for reproducing the Combined Work from the
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40 Application, but excluding the System Libraries of the Combined Work.
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41
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42 1. Exception to Section 3 of the GNU GPL.
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43
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44 You may convey a covered work under sections 3 and 4 of this License
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45 without being bound by section 3 of the GNU GPL.
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46
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47 2. Conveying Modified Versions.
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48
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49 If you modify a copy of the Library, and, in your modifications, a
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50 facility refers to a function or data to be supplied by an Application
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51 that uses the facility (other than as an argument passed when the
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52 facility is invoked), then you may convey a copy of the modified
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53 version:
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54
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55 a) under this License, provided that you make a good faith effort to
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56 ensure that, in the event an Application does not supply the
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57 function or data, the facility still operates, and performs
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58 whatever part of its purpose remains meaningful, or
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59
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60 b) under the GNU GPL, with none of the additional permissions of
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61 this License applicable to that copy.
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62
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63 3. Object Code Incorporating Material from Library Header Files.
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64
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65 The object code form of an Application may incorporate material from
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66 a header file that is part of the Library. You may convey such object
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67 code under terms of your choice, provided that, if the incorporated
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68 material is not limited to numerical parameters, data structure
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69 layouts and accessors, or small macros, inline functions and templates
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70 (ten or fewer lines in length), you do both of the following:
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71
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72 a) Give prominent notice with each copy of the object code that the
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73 Library is used in it and that the Library and its use are
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74 covered by this License.
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75
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76 b) Accompany the object code with a copy of the GNU GPL and this license
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77 document.
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78
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79 4. Combined Works.
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80
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81 You may convey a Combined Work under terms of your choice that,
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82 taken together, effectively do not restrict modification of the
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83 portions of the Library contained in the Combined Work and reverse
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84 engineering for debugging such modifications, if you also do each of
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85 the following:
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86
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87 a) Give prominent notice with each copy of the Combined Work that
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88 the Library is used in it and that the Library and its use are
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89 covered by this License.
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90
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91 b) Accompany the Combined Work with a copy of the GNU GPL and this license
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92 document.
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93
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94 c) For a Combined Work that displays copyright notices during
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95 execution, include the copyright notice for the Library among
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96 these notices, as well as a reference directing the user to the
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97 copies of the GNU GPL and this license document.
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98
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99 d) Do one of the following:
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100
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101 0) Convey the Minimal Corresponding Source under the terms of this
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102 License, and the Corresponding Application Code in a form
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103 suitable for, and under terms that permit, the user to
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104 recombine or relink the Application with a modified version of
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105 the Linked Version to produce a modified Combined Work, in the
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106 manner specified by section 6 of the GNU GPL for conveying
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107 Corresponding Source.
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108
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109 1) Use a suitable shared library mechanism for linking with the
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110 Library. A suitable mechanism is one that (a) uses at run time
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111 a copy of the Library already present on the user's computer
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112 system, and (b) will operate properly with a modified version
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113 of the Library that is interface-compatible with the Linked
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114 Version.
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115
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116 e) Provide Installation Information, but only if you would otherwise
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117 be required to provide such information under section 6 of the
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118 GNU GPL, and only to the extent that such information is
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119 necessary to install and execute a modified version of the
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120 Combined Work produced by recombining or relinking the
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121 Application with a modified version of the Linked Version. (If
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122 you use option 4d0, the Installation Information must accompany
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123 the Minimal Corresponding Source and Corresponding Application
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124 Code. If you use option 4d1, you must provide the Installation
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125 Information in the manner specified by section 6 of the GNU GPL
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126 for conveying Corresponding Source.)
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127
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128 5. Combined Libraries.
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129
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130 You may place library facilities that are a work based on the
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131 Library side by side in a single library together with other library
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132 facilities that are not Applications and are not covered by this
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133 License, and convey such a combined library under terms of your
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134 choice, if you do both of the following:
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135
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136 a) Accompany the combined library with a copy of the same work based
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137 on the Library, uncombined with any other library facilities,
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138 conveyed under the terms of this License.
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139
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140 b) Give prominent notice with the combined library that part of it
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141 is a work based on the Library, and explaining where to find the
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142 accompanying uncombined form of the same work.
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143
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144 6. Revised Versions of the GNU Lesser General Public License.
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145
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146 The Free Software Foundation may publish revised and/or new versions
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147 of the GNU Lesser General Public License from time to time. Such new
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148 versions will be similar in spirit to the present version, but may
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149 differ in detail to address new problems or concerns.
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150
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151 Each version is given a distinguishing version number. If the
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152 Library as you received it specifies that a certain numbered version
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153 of the GNU Lesser General Public License "or any later version"
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154 applies to it, you have the option of following the terms and
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155 conditions either of that published version or of any later version
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156 published by the Free Software Foundation. If the Library as you
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157 received it does not specify a version number of the GNU Lesser
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158 General Public License, you may choose any version of the GNU Lesser
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159 General Public License ever published by the Free Software Foundation.
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160
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161 If the Library as you received it specifies that a proxy can decide
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162 whether future versions of the GNU Lesser General Public License shall
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163 apply, that proxy's public statement of acceptance of any version is
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164 permanent authorization for you to choose that version for the
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165 Library.
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