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2                    GNU LESSER GENERAL PUBLIC LICENSE
3                        Version 3, 29 June 2007
4
5  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
6  Everyone is permitted to copy and distribute verbatim copies
7  of this license document, but changing it is not allowed.
8
9
10   This version of the GNU Lesser General Public License incorporates
11 the terms and conditions of version 3 of the GNU General Public
12 License, supplemented by the additional permissions listed below.
13
14   0. Additional Definitions.
15
16   As used herein, "this License" refers to version 3 of the GNU Lesser
17 General Public License, and the "GNU GPL" refers to version 3 of the GNU
18 General Public License.
19
20   "The Library" refers to a covered work governed by this License,
21 other than an Application or a Combined Work as defined below.
22
23   An "Application" is any work that makes use of an interface provided
24 by the Library, but which is not otherwise based on the Library.
25 Defining a subclass of a class defined by the Library is deemed a mode
26 of using an interface provided by the Library.
27
28   A "Combined Work" is a work produced by combining or linking an
29 Application with the Library.  The particular version of the Library
30 with which the Combined Work was made is also called the "Linked
31 Version".
32
33   The "Minimal Corresponding Source" for a Combined Work means the
34 Corresponding Source for the Combined Work, excluding any source code
35 for portions of the Combined Work that, considered in isolation, are
36 based on the Application, and not on the Linked Version.
37
38   The "Corresponding Application Code" for a Combined Work means the
39 object code and/or source code for the Application, including any data
40 and utility programs needed for reproducing the Combined Work from the
41 Application, but excluding the System Libraries of the Combined Work.
42
43   1. Exception to Section 3 of the GNU GPL.
44
45   You may convey a covered work under sections 3 and 4 of this License
46 without being bound by section 3 of the GNU GPL.
47
48   2. Conveying Modified Versions.
49
50   If you modify a copy of the Library, and, in your modifications, a
51 facility refers to a function or data to be supplied by an Application
52 that uses the facility (other than as an argument passed when the
53 facility is invoked), then you may convey a copy of the modified
54 version:
55
56    a) under this License, provided that you make a good faith effort to
57    ensure that, in the event an Application does not supply the
58    function or data, the facility still operates, and performs
59    whatever part of its purpose remains meaningful, or
60
61    b) under the GNU GPL, with none of the additional permissions of
62    this License applicable to that copy.
63
64   3. Object Code Incorporating Material from Library Header Files.
65
66   The object code form of an Application may incorporate material from
67 a header file that is part of the Library.  You may convey such object
68 code under terms of your choice, provided that, if the incorporated
69 material is not limited to numerical parameters, data structure
70 layouts and accessors, or small macros, inline functions and templates
71 (ten or fewer lines in length), you do both of the following:
72
73    a) Give prominent notice with each copy of the object code that the
74    Library is used in it and that the Library and its use are
75    covered by this License.
76
77    b) Accompany the object code with a copy of the GNU GPL and this license
78    document.
79
80   4. Combined Works.
81
82   You may convey a Combined Work under terms of your choice that,
83 taken together, effectively do not restrict modification of the
84 portions of the Library contained in the Combined Work and reverse
85 engineering for debugging such modifications, if you also do each of
86 the following:
87
88    a) Give prominent notice with each copy of the Combined Work that
89    the Library is used in it and that the Library and its use are
90    covered by this License.
91
92    b) Accompany the Combined Work with a copy of the GNU GPL and this license
93    document.
94
95    c) For a Combined Work that displays copyright notices during
96    execution, include the copyright notice for the Library among
97    these notices, as well as a reference directing the user to the
98    copies of the GNU GPL and this license document.
99
100    d) Do one of the following:
101
102        0) Convey the Minimal Corresponding Source under the terms of this
103        License, and the Corresponding Application Code in a form
104        suitable for, and under terms that permit, the user to
105        recombine or relink the Application with a modified version of
106        the Linked Version to produce a modified Combined Work, in the
107        manner specified by section 6 of the GNU GPL for conveying
108        Corresponding Source.
109
110        1) Use a suitable shared library mechanism for linking with the
111        Library.  A suitable mechanism is one that (a) uses at run time
112        a copy of the Library already present on the user's computer
113        system, and (b) will operate properly with a modified version
114        of the Library that is interface-compatible with the Linked
115        Version.
116
117    e) Provide Installation Information, but only if you would otherwise
118    be required to provide such information under section 6 of the
119    GNU GPL, and only to the extent that such information is
120    necessary to install and execute a modified version of the
121    Combined Work produced by recombining or relinking the
122    Application with a modified version of the Linked Version. (If
123    you use option 4d0, the Installation Information must accompany
124    the Minimal Corresponding Source and Corresponding Application
125    Code. If you use option 4d1, you must provide the Installation
126    Information in the manner specified by section 6 of the GNU GPL
127    for conveying Corresponding Source.)
128
129   5. Combined Libraries.
130
131   You may place library facilities that are a work based on the
132 Library side by side in a single library together with other library
133 facilities that are not Applications and are not covered by this
134 License, and convey such a combined library under terms of your
135 choice, if you do both of the following:
136
137    a) Accompany the combined library with a copy of the same work based
138    on the Library, uncombined with any other library facilities,
139    conveyed under the terms of this License.
140
141    b) Give prominent notice with the combined library that part of it
142    is a work based on the Library, and explaining where to find the
143    accompanying uncombined form of the same work.
144
145   6. Revised Versions of the GNU Lesser General Public License.
146
147   The Free Software Foundation may publish revised and/or new versions
148 of the GNU Lesser General Public License from time to time. Such new
149 versions will be similar in spirit to the present version, but may
150 differ in detail to address new problems or concerns.
151
152   Each version is given a distinguishing version number. If the
153 Library as you received it specifies that a certain numbered version
154 of the GNU Lesser General Public License "or any later version"
155 applies to it, you have the option of following the terms and
156 conditions either of that published version or of any later version
157 published by the Free Software Foundation. If the Library as you
158 received it does not specify a version number of the GNU Lesser
159 General Public License, you may choose any version of the GNU Lesser
160 General Public License ever published by the Free Software Foundation.
161
162   If the Library as you received it specifies that a proxy can decide
163 whether future versions of the GNU Lesser General Public License shall
164 apply, that proxy's public statement of acceptance of any version is
165 permanent authorization for you to choose that version for the
166 Library.
167
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