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                   GNU LESSER GENERAL PUBLIC LICENSE

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                       Version 3, 29 June 2007

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 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>

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 Everyone is permitted to copy and distribute verbatim copies

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 of this license document, but changing it is not allowed.

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  This version of the GNU Lesser General Public License incorporates

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the terms and conditions of version 3 of the GNU General Public

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License, supplemented by the additional permissions listed below.

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  0. Additional Definitions.

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  As used herein, "this License" refers to version 3 of the GNU Lesser

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General Public License, and the "GNU GPL" refers to version 3 of the GNU

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General Public License.

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  "The Library" refers to a covered work governed by this License,

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other than an Application or a Combined Work as defined below.

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  An "Application" is any work that makes use of an interface provided

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by the Library, but which is not otherwise based on the Library.

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Defining a subclass of a class defined by the Library is deemed a mode

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of using an interface provided by the Library.

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  A "Combined Work" is a work produced by combining or linking an

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Application with the Library.  The particular version of the Library

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with which the Combined Work was made is also called the "Linked

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Version".

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  The "Minimal Corresponding Source" for a Combined Work means the

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Corresponding Source for the Combined Work, excluding any source code

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for portions of the Combined Work that, considered in isolation, are

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based on the Application, and not on the Linked Version.

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  The "Corresponding Application Code" for a Combined Work means the

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object code and/or source code for the Application, including any data

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and utility programs needed for reproducing the Combined Work from the

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Application, but excluding the System Libraries of the Combined Work.

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  1. Exception to Section 3 of the GNU GPL.

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  You may convey a covered work under sections 3 and 4 of this License

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without being bound by section 3 of the GNU GPL.

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  2. Conveying Modified Versions.

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  If you modify a copy of the Library, and, in your modifications, a

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facility refers to a function or data to be supplied by an Application

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that uses the facility (other than as an argument passed when the

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facility is invoked), then you may convey a copy of the modified

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version:

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   a) under this License, provided that you make a good faith effort to

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   ensure that, in the event an Application does not supply the

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   function or data, the facility still operates, and performs

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   whatever part of its purpose remains meaningful, or

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   b) under the GNU GPL, with none of the additional permissions of

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   this License applicable to that copy.

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  3. Object Code Incorporating Material from Library Header Files.

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  The object code form of an Application may incorporate material from

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a header file that is part of the Library.  You may convey such object

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code under terms of your choice, provided that, if the incorporated

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material is not limited to numerical parameters, data structure

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layouts and accessors, or small macros, inline functions and templates

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(ten or fewer lines in length), you do both of the following:

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   a) Give prominent notice with each copy of the object code that the

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   Library is used in it and that the Library and its use are

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   covered by this License.

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   b) Accompany the object code with a copy of the GNU GPL and this license

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   document.

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  4. Combined Works.

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  You may convey a Combined Work under terms of your choice that,

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taken together, effectively do not restrict modification of the

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portions of the Library contained in the Combined Work and reverse

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engineering for debugging such modifications, if you also do each of

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the following:

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   a) Give prominent notice with each copy of the Combined Work that

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   the Library is used in it and that the Library and its use are

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   covered by this License.

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   b) Accompany the Combined Work with a copy of the GNU GPL and this license

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   document.

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   c) For a Combined Work that displays copyright notices during

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   execution, include the copyright notice for the Library among

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   these notices, as well as a reference directing the user to the

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   copies of the GNU GPL and this license document.

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   d) Do one of the following:

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       0) Convey the Minimal Corresponding Source under the terms of this

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       License, and the Corresponding Application Code in a form

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       suitable for, and under terms that permit, the user to

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       recombine or relink the Application with a modified version of

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       the Linked Version to produce a modified Combined Work, in the

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       manner specified by section 6 of the GNU GPL for conveying

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       Corresponding Source.

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       1) Use a suitable shared library mechanism for linking with the

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       Library.  A suitable mechanism is one that (a) uses at run time

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       a copy of the Library already present on the user's computer

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       system, and (b) will operate properly with a modified version

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       of the Library that is interface-compatible with the Linked

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       Version.

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   e) Provide Installation Information, but only if you would otherwise

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   be required to provide such information under section 6 of the

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   GNU GPL, and only to the extent that such information is

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   necessary to install and execute a modified version of the

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   Combined Work produced by recombining or relinking the

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   Application with a modified version of the Linked Version. (If

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   you use option 4d0, the Installation Information must accompany

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   the Minimal Corresponding Source and Corresponding Application

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   Code. If you use option 4d1, you must provide the Installation

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   Information in the manner specified by section 6 of the GNU GPL

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   for conveying Corresponding Source.)

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  5. Combined Libraries.

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  You may place library facilities that are a work based on the

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Library side by side in a single library together with other library

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facilities that are not Applications and are not covered by this

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License, and convey such a combined library under terms of your

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choice, if you do both of the following:

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   a) Accompany the combined library with a copy of the same work based

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   on the Library, uncombined with any other library facilities,

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   conveyed under the terms of this License.

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   b) Give prominent notice with the combined library that part of it

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   is a work based on the Library, and explaining where to find the

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   accompanying uncombined form of the same work.

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  6. Revised Versions of the GNU Lesser General Public License.

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  The Free Software Foundation may publish revised and/or new versions

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of the GNU Lesser General Public License from time to time. Such new

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versions will be similar in spirit to the present version, but may

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differ in detail to address new problems or concerns.

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  Each version is given a distinguishing version number. If the

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Library as you received it specifies that a certain numbered version

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of the GNU Lesser General Public License "or any later version"

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applies to it, you have the option of following the terms and

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conditions either of that published version or of any later version

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published by the Free Software Foundation. If the Library as you

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received it does not specify a version number of the GNU Lesser

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General Public License, you may choose any version of the GNU Lesser

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General Public License ever published by the Free Software Foundation.

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  If the Library as you received it specifies that a proxy can decide

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whether future versions of the GNU Lesser General Public License shall

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apply, that proxy's public statement of acceptance of any version is

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permanent authorization for you to choose that version for the

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Library.