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@node Library Copying
@node Library Copying
@appendixsec GNU LESSER GENERAL PUBLIC LICENSE
@appendixsec GNU LESSER GENERAL PUBLIC LICENSE
 
 
@cindex LGPL, Lesser General Public License
@cindex LGPL, Lesser General Public License
@center Version 2.1, February 1999
@center Version 2.1, February 1999
 
 
@display
@display
Copyright @copyright{} 1991, 1999 Free Software Foundation, Inc.
Copyright @copyright{} 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA
 
 
Everyone is permitted to copy and distribute verbatim copies
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
of this license document, but changing it is not allowed.
 
 
[This is the first released version of the Lesser GPL.  It also counts
[This is the first released version of the Lesser GPL.  It also counts
as the successor of the GNU Library Public License, version 2, hence the
as the successor of the GNU Library Public License, version 2, hence the
version number 2.1.]
version number 2.1.]
@end display
@end display
 
 
@appendixsubsec Preamble
@appendixsubsec Preamble
 
 
  The licenses for most software are designed to take away your
  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
freedom to share and change it.  By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
Licenses are intended to guarantee your freedom to share and change
free software---to make sure the software is free for all its users.
free software---to make sure the software is free for all its users.
 
 
  This license, the Lesser General Public License, applies to some
  This license, the Lesser General Public License, applies to some
specially designated software---typically libraries---of the Free
specially designated software---typically libraries---of the Free
Software Foundation and other authors who decide to use it.  You can use
Software Foundation and other authors who decide to use it.  You can use
it too, but we suggest you first think carefully about whether this
it too, but we suggest you first think carefully about whether this
license or the ordinary General Public License is the better strategy to
license or the ordinary General Public License is the better strategy to
use in any particular case, based on the explanations below.
use in any particular case, based on the explanations below.
 
 
  When we speak of free software, we are referring to freedom of use,
  When we speak of free software, we are referring to freedom of use,
not price.  Our General Public Licenses are designed to make sure that
not price.  Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of it
it if you want it; that you can change the software and use pieces of it
in new free programs; and that you are informed that you can do these
in new free programs; and that you are informed that you can do these
things.
things.
 
 
  To protect your rights, we need to make restrictions that forbid
  To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
distributors to deny you these rights or to ask you to surrender these
rights.  These restrictions translate to certain responsibilities for
rights.  These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.
you if you distribute copies of the library or if you modify it.
 
 
  For example, if you distribute copies of the library, whether gratis
  For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
or for a fee, you must give the recipients all the rights that we gave
you.  You must make sure that they, too, receive or can get the source
you.  You must make sure that they, too, receive or can get the source
code.  If you link other code with the library, you must provide
code.  If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
complete object files to the recipients, so that they can relink them
with the library after making changes to the library and recompiling
with the library after making changes to the library and recompiling
it.  And you must show them these terms so they know their rights.
it.  And you must show them these terms so they know their rights.
 
 
  We protect your rights with a two-step method: (1) we copyright the
  We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library.
permission to copy, distribute and/or modify the library.
 
 
  To protect each distributor, we want to make it very clear that
  To protect each distributor, we want to make it very clear that
there is no warranty for the free library.  Also, if the library is
there is no warranty for the free library.  Also, if the library is
modified by someone else and passed on, the recipients should know
modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original
that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be
author's reputation will not be affected by problems that might be
introduced by others.
introduced by others.
 
 
  Finally, software patents pose a constant threat to the existence of
  Finally, software patents pose a constant threat to the existence of
any free program.  We wish to make sure that a company cannot
any free program.  We wish to make sure that a company cannot
effectively restrict the users of a free program by obtaining a
effectively restrict the users of a free program by obtaining a
restrictive license from a patent holder.  Therefore, we insist that
restrictive license from a patent holder.  Therefore, we insist that
any patent license obtained for a version of the library must be
any patent license obtained for a version of the library must be
consistent with the full freedom of use specified in this license.
consistent with the full freedom of use specified in this license.
 
 
  Most GNU software, including some libraries, is covered by the
  Most GNU software, including some libraries, is covered by the
ordinary GNU General Public License.  This license, the GNU Lesser
ordinary GNU General Public License.  This license, the GNU Lesser
General Public License, applies to certain designated libraries, and
General Public License, applies to certain designated libraries, and
is quite different from the ordinary General Public License.  We use
is quite different from the ordinary General Public License.  We use
this license for certain libraries in order to permit linking those
this license for certain libraries in order to permit linking those
libraries into non-free programs.
libraries into non-free programs.
 
 
  When a program is linked with a library, whether statically or using
  When a program is linked with a library, whether statically or using
a shared library, the combination of the two is legally speaking a
a shared library, the combination of the two is legally speaking a
combined work, a derivative of the original library.  The ordinary
combined work, a derivative of the original library.  The ordinary
General Public License therefore permits such linking only if the
General Public License therefore permits such linking only if the
entire combination fits its criteria of freedom.  The Lesser General
entire combination fits its criteria of freedom.  The Lesser General
Public License permits more lax criteria for linking other code with
Public License permits more lax criteria for linking other code with
the library.
the library.
 
 
  We call this license the @dfn{Lesser} General Public License because it
  We call this license the @dfn{Lesser} General Public License because it
does @emph{Less} to protect the user's freedom than the ordinary General
does @emph{Less} to protect the user's freedom than the ordinary General
Public License.  It also provides other free software developers Less
Public License.  It also provides other free software developers Less
of an advantage over competing non-free programs.  These disadvantages
of an advantage over competing non-free programs.  These disadvantages
are the reason we use the ordinary General Public License for many
are the reason we use the ordinary General Public License for many
libraries.  However, the Lesser license provides advantages in certain
libraries.  However, the Lesser license provides advantages in certain
special circumstances.
special circumstances.
 
 
  For example, on rare occasions, there may be a special need to
  For example, on rare occasions, there may be a special need to
encourage the widest possible use of a certain library, so that it becomes
encourage the widest possible use of a certain library, so that it becomes
a de-facto standard.  To achieve this, non-free programs must be
a de-facto standard.  To achieve this, non-free programs must be
allowed to use the library.  A more frequent case is that a free
allowed to use the library.  A more frequent case is that a free
library does the same job as widely used non-free libraries.  In this
library does the same job as widely used non-free libraries.  In this
case, there is little to gain by limiting the free library to free
case, there is little to gain by limiting the free library to free
software only, so we use the Lesser General Public License.
software only, so we use the Lesser General Public License.
 
 
  In other cases, permission to use a particular library in non-free
  In other cases, permission to use a particular library in non-free
programs enables a greater number of people to use a large body of
programs enables a greater number of people to use a large body of
free software.  For example, permission to use the GNU C Library in
free software.  For example, permission to use the GNU C Library in
non-free programs enables many more people to use the whole GNU
non-free programs enables many more people to use the whole GNU
operating system, as well as its variant, the GNU/Linux operating
operating system, as well as its variant, the GNU/Linux operating
system.
system.
 
 
  Although the Lesser General Public License is Less protective of the
  Although the Lesser General Public License is Less protective of the
users' freedom, it does ensure that the user of a program that is
users' freedom, it does ensure that the user of a program that is
linked with the Library has the freedom and the wherewithal to run
linked with the Library has the freedom and the wherewithal to run
that program using a modified version of the Library.
that program using a modified version of the Library.
 
 
  The precise terms and conditions for copying, distribution and
  The precise terms and conditions for copying, distribution and
modification follow.  Pay close attention to the difference between a
modification follow.  Pay close attention to the difference between a
``work based on the library'' and a ``work that uses the library''.  The
``work based on the library'' and a ``work that uses the library''.  The
former contains code derived from the library, whereas the latter must
former contains code derived from the library, whereas the latter must
be combined with the library in order to run.
be combined with the library in order to run.
 
 
@iftex
@iftex
@appendixsubsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@appendixsubsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@end iftex
@end iftex
@ifinfo
@ifinfo
@center GNU LESSER GENERAL PUBLIC LICENSE
@center GNU LESSER GENERAL PUBLIC LICENSE
@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
@end ifinfo
@end ifinfo
 
 
@enumerate 0
@enumerate 0
@item
@item
This License Agreement applies to any software library or other program
This License Agreement applies to any software library or other program
which contains a notice placed by the copyright holder or other
which contains a notice placed by the copyright holder or other
authorized party saying it may be distributed under the terms of this
authorized party saying it may be distributed under the terms of this
Lesser General Public License (also called ``this License'').  Each
Lesser General Public License (also called ``this License'').  Each
licensee is addressed as ``you''.
licensee is addressed as ``you''.
 
 
  A ``library'' means a collection of software functions and/or data
  A ``library'' means a collection of software functions and/or data
prepared so as to be conveniently linked with application programs
prepared so as to be conveniently linked with application programs
(which use some of those functions and data) to form executables.
(which use some of those functions and data) to form executables.
 
 
  The ``Library'', below, refers to any such software library or work
  The ``Library'', below, refers to any such software library or work
which has been distributed under these terms.  A ``work based on the
which has been distributed under these terms.  A ``work based on the
Library'' means either the Library or any derivative work under
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portion of it, either verbatim or with modifications and/or translated
portion of it, either verbatim or with modifications and/or translated
straightforwardly into another language.  (Hereinafter, translation is
straightforwardly into another language.  (Hereinafter, translation is
included without limitation in the term ``modification''.)
included without limitation in the term ``modification''.)
 
 
  ``Source code'' for a work means the preferred form of the work for
  ``Source code'' for a work means the preferred form of the work for
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and installation of the library.
and installation of the library.
 
 
  Activities other than copying, distribution and modification are not
  Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
covered by this License; they are outside its scope.  The act of
running a program using the Library is not restricted, and output from
running a program using the Library is not restricted, and output from
such a program is covered only if its contents constitute a work based
such a program is covered only if its contents constitute a work based
on the Library (independent of the use of the Library in a tool for
on the Library (independent of the use of the Library in a tool for
writing it).  Whether that is true depends on what the Library does
writing it).  Whether that is true depends on what the Library does
and what the program that uses the Library does.
and what the program that uses the Library does.
 
 
@item
@item
You may copy and distribute verbatim copies of the Library's
You may copy and distribute verbatim copies of the Library's
complete source code as you receive it, in any medium, provided that
complete source code as you receive it, in any medium, provided that
you conspicuously and appropriately publish on each copy an
you conspicuously and appropriately publish on each copy an
appropriate copyright notice and disclaimer of warranty; keep intact
appropriate copyright notice and disclaimer of warranty; keep intact
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all the notices that refer to this License and to the absence of any
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Library.
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  You may charge a fee for the physical act of transferring a copy,
  You may charge a fee for the physical act of transferring a copy,
and you may at your option offer warranty protection in exchange for a
and you may at your option offer warranty protection in exchange for a
fee.
fee.
 
 
@item
@item
You may modify your copy or copies of the Library or any portion
You may modify your copy or copies of the Library or any portion
of it, thus forming a work based on the Library, and copy and
of it, thus forming a work based on the Library, and copy and
distribute such modifications or work under the terms of Section 1
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
above, provided that you also meet all of these conditions:
 
 
@enumerate a
@enumerate a
@item
@item
The modified work must itself be a software library.
The modified work must itself be a software library.
 
 
@item
@item
You must cause the files modified to carry prominent notices
You must cause the files modified to carry prominent notices
stating that you changed the files and the date of any change.
stating that you changed the files and the date of any change.
 
 
@item
@item
You must cause the whole of the work to be licensed at no
You must cause the whole of the work to be licensed at no
charge to all third parties under the terms of this License.
charge to all third parties under the terms of this License.
 
 
@item
@item
If a facility in the modified Library refers to a function or a
If a facility in the modified Library refers to a function or a
table of data to be supplied by an application program that uses
table of data to be supplied by an application program that uses
the facility, other than as an argument passed when the facility
the facility, other than as an argument passed when the facility
is invoked, then you must make a good faith effort to ensure that,
is invoked, then you must make a good faith effort to ensure that,
in the event an application does not supply such function or
in the event an application does not supply such function or
table, the facility still operates, and performs whatever part of
table, the facility still operates, and performs whatever part of
its purpose remains meaningful.
its purpose remains meaningful.
 
 
(For example, a function in a library to compute square roots has
(For example, a function in a library to compute square roots has
a purpose that is entirely well-defined independent of the
a purpose that is entirely well-defined independent of the
application.  Therefore, Subsection 2d requires that any
application.  Therefore, Subsection 2d requires that any
application-supplied function or table used by this function must
application-supplied function or table used by this function must
be optional: if the application does not supply it, the square
be optional: if the application does not supply it, the square
root function must still compute square roots.)
root function must still compute square roots.)
@end enumerate
@end enumerate
 
 
These requirements apply to the modified work as a whole.  If
These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Library,
identifiable sections of that work are not derived from the Library,
and can be reasonably considered independent and separate works in
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themselves, then this License, and its terms, do not apply to those
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sections when you distribute them as separate works.  But when you
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
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this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote
entire whole, and thus to each and every part regardless of who wrote
it.
it.
 
 
Thus, it is not the intent of this section to claim rights or contest
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
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exercise the right to control the distribution of derivative or
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In addition, mere aggregation of another work not based on the Library
In addition, mere aggregation of another work not based on the Library
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the scope of this License.
 
 
@item
@item
You may opt to apply the terms of the ordinary GNU General Public
You may opt to apply the terms of the ordinary GNU General Public
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ordinary GNU General Public License has appeared, then you can specify
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these notices.
these notices.
 
 
  Once this change is made in a given copy, it is irreversible for
  Once this change is made in a given copy, it is irreversible for
that copy, so the ordinary GNU General Public License applies to all
that copy, so the ordinary GNU General Public License applies to all
subsequent copies and derivative works made from that copy.
subsequent copies and derivative works made from that copy.
 
 
  This option is useful when you wish to copy part of the code of
  This option is useful when you wish to copy part of the code of
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the Library into a program that is not a library.
 
 
@item
@item
You may copy and distribute the Library (or a portion or
You may copy and distribute the Library (or a portion or
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  If distribution of object code is made by offering access to copy
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@item
@item
A program that contains no derivative of any portion of the
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therefore falls outside the scope of this License.
 
 
  However, linking a ``work that uses the Library'' with the Library
  However, linking a ``work that uses the Library'' with the Library
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Section 6 states terms for distribution of such executables.
 
 
  When a ``work that uses the Library'' uses material from a header file
  When a ``work that uses the Library'' uses material from a header file
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  If such an object file uses only numerical parameters, data
  If such an object file uses only numerical parameters, data
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work.  (Executables containing this object code plus portions of the
Library will still fall under Section 6.)
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  Otherwise, if the work is a derivative of the Library, you may
  Otherwise, if the work is a derivative of the Library, you may
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Any executables containing that work also fall under Section 6,
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whether or not they are linked directly with the Library itself.
 
 
@item
@item
As an exception to the Sections above, you may also combine or
As an exception to the Sections above, you may also combine or
link a ``work that uses the Library'' with the Library to produce a
link a ``work that uses the Library'' with the Library to produce a
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modification of the work for the customer's own use and reverse
modification of the work for the customer's own use and reverse
engineering for debugging such modifications.
engineering for debugging such modifications.
 
 
  You must give prominent notice with each copy of the work that the
  You must give prominent notice with each copy of the work that the
Library is used in it and that the Library and its use are covered by
Library is used in it and that the Library and its use are covered by
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directing the user to the copy of this License.  Also, you must do one
of these things:
of these things:
 
 
@enumerate a
@enumerate a
@item
@item
Accompany the work with the complete corresponding
Accompany the work with the complete corresponding
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changes were used in the work (which must be distributed under
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with the Library, with the complete machine-readable ``work that
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uses the Library'', as object code and/or source code, so that the
user can modify the Library and then relink to produce a modified
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executable containing the modified Library.  (It is understood
that the user who changes the contents of definitions files in the
that the user who changes the contents of definitions files in the
Library will not necessarily be able to recompile the application
Library will not necessarily be able to recompile the application
to use the modified definitions.)
to use the modified definitions.)
 
 
@item
@item
Use a suitable shared library mechanism for linking with the Library.  A
Use a suitable shared library mechanism for linking with the Library.  A
suitable mechanism is one that (1) uses at run time a copy of the
suitable mechanism is one that (1) uses at run time a copy of the
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properly with a modified version of the library, if the user installs
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one, as long as the modified version is interface-compatible with the
one, as long as the modified version is interface-compatible with the
version that the work was made with.
version that the work was made with.
 
 
@item
@item
Accompany the work with a written offer, valid for at
Accompany the work with a written offer, valid for at
least three years, to give the same user the materials
least three years, to give the same user the materials
specified in Subsection 6a, above, for a charge no more
specified in Subsection 6a, above, for a charge no more
than the cost of performing this distribution.
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@item
@item
If distribution of the work is made by offering access to copy
If distribution of the work is made by offering access to copy
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specified materials from the same place.
specified materials from the same place.
 
 
@item
@item
Verify that the user has already received a copy of these
Verify that the user has already received a copy of these
materials or that you have already sent this user a copy.
materials or that you have already sent this user a copy.
@end enumerate
@end enumerate
 
 
  For an executable, the required form of the ``work that uses the
  For an executable, the required form of the ``work that uses the
Library'' must include any data and utility programs needed for
Library'' must include any data and utility programs needed for
reproducing the executable from it.  However, as a special exception,
reproducing the executable from it.  However, as a special exception,
the materials to be distributed need not include anything that is
the materials to be distributed need not include anything that is
normally distributed (in either source or binary form) with the major
normally distributed (in either source or binary form) with the major
components (compiler, kernel, and so on) of the operating system on
components (compiler, kernel, and so on) of the operating system on
which the executable runs, unless that component itself accompanies the
which the executable runs, unless that component itself accompanies the
executable.
executable.
 
 
  It may happen that this requirement contradicts the license
  It may happen that this requirement contradicts the license
restrictions of other proprietary libraries that do not normally
restrictions of other proprietary libraries that do not normally
accompany the operating system.  Such a contradiction means you cannot
accompany the operating system.  Such a contradiction means you cannot
use both them and the Library together in an executable that you
use both them and the Library together in an executable that you
distribute.
distribute.
 
 
@item
@item
You may place library facilities that are a work based on the
You may place library facilities that are a work based on the
Library side-by-side in a single library together with other library
Library side-by-side in a single library together with other library
facilities not covered by this License, and distribute such a combined
facilities not covered by this License, and distribute such a combined
library, provided that the separate distribution of the work based on
library, provided that the separate distribution of the work based on
the Library and of the other library facilities is otherwise
the Library and of the other library facilities is otherwise
permitted, and provided that you do these two things:
permitted, and provided that you do these two things:
 
 
@enumerate a
@enumerate a
@item
@item
Accompany the combined library with a copy of the same work
Accompany the combined library with a copy of the same work
based on the Library, uncombined with any other library
based on the Library, uncombined with any other library
facilities.  This must be distributed under the terms of the
facilities.  This must be distributed under the terms of the
Sections above.
Sections above.
 
 
@item
@item
Give prominent notice with the combined library of the fact
Give prominent notice with the combined library of the fact
that part of it is a work based on the Library, and explaining
that part of it is a work based on the Library, and explaining
where to find the accompanying uncombined form of the same work.
where to find the accompanying uncombined form of the same work.
@end enumerate
@end enumerate
 
 
@item
@item
You may not copy, modify, sublicense, link with, or distribute
You may not copy, modify, sublicense, link with, or distribute
the Library except as expressly provided under this License.  Any
the Library except as expressly provided under this License.  Any
attempt otherwise to copy, modify, sublicense, link with, or
attempt otherwise to copy, modify, sublicense, link with, or
distribute the Library is void, and will automatically terminate your
distribute the Library is void, and will automatically terminate your
rights under this License.  However, parties who have received copies,
rights under this License.  However, parties who have received copies,
or rights, from you under this License will not have their licenses
or rights, from you under this License will not have their licenses
terminated so long as such parties remain in full compliance.
terminated so long as such parties remain in full compliance.
 
 
@item
@item
You are not required to accept this License, since you have not
You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
signed it.  However, nothing else grants you permission to modify or
distribute the Library or its derivative works.  These actions are
distribute the Library or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Library (or any work based on the
modifying or distributing the Library (or any work based on the
Library), you indicate your acceptance of this License to do so, and
Library), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
all its terms and conditions for copying, distributing or modifying
the Library or works based on it.
the Library or works based on it.
 
 
@item
@item
Each time you redistribute the Library (or any work based on the
Each time you redistribute the Library (or any work based on the
Library), the recipient automatically receives a license from the
Library), the recipient automatically receives a license from the
original licensor to copy, distribute, link with or modify the Library
original licensor to copy, distribute, link with or modify the Library
subject to these terms and conditions.  You may not impose any further
subject to these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties with
You are not responsible for enforcing compliance by third parties with
this License.
this License.
 
 
@item
@item
If, as a consequence of a court judgment or allegation of patent
If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot
excuse you from the conditions of this License.  If you cannot
distribute so as to satisfy simultaneously your obligations under this
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
License and any other pertinent obligations, then as a consequence you
may not distribute the Library at all.  For example, if a patent
may not distribute the Library at all.  For example, if a patent
license would not permit royalty-free redistribution of the Library by
license would not permit royalty-free redistribution of the Library by
all those who receive copies directly or indirectly through you, then
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Library.
refrain entirely from distribution of the Library.
 
 
If any portion of this section is held invalid or unenforceable under any
If any portion of this section is held invalid or unenforceable under any
particular circumstance, the balance of the section is intended to apply,
particular circumstance, the balance of the section is intended to apply,
and the section as a whole is intended to apply in other circumstances.
and the section as a whole is intended to apply in other circumstances.
 
 
It is not the purpose of this section to induce you to infringe any
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system which is
integrity of the free software distribution system which is
implemented by public license practices.  Many people have made
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
to distribute software through any other system and a licensee cannot
impose that choice.
impose that choice.
 
 
This section is intended to make thoroughly clear what is believed to
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
be a consequence of the rest of this License.
 
 
@item
@item
If the distribution and/or use of the Library is restricted in
If the distribution and/or use of the Library is restricted in
certain countries either by patents or by copyrighted interfaces, the
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Library under this License may add
original copyright holder who places the Library under this License may add
an explicit geographical distribution limitation excluding those countries,
an explicit geographical distribution limitation excluding those countries,
so that distribution is permitted only in or among countries not thus
so that distribution is permitted only in or among countries not thus
excluded.  In such case, this License incorporates the limitation as if
excluded.  In such case, this License incorporates the limitation as if
written in the body of this License.
written in the body of this License.
 
 
@item
@item
The Free Software Foundation may publish revised and/or new
The Free Software Foundation may publish revised and/or new
versions of the Lesser General Public License from time to time.
versions of the Lesser General Public License from time to time.
Such new versions will be similar in spirit to the present version,
Such new versions will be similar in spirit to the present version,
but may differ in detail to address new problems or concerns.
but may differ in detail to address new problems or concerns.
 
 
Each version is given a distinguishing version number.  If the Library
Each version is given a distinguishing version number.  If the Library
specifies a version number of this License which applies to it and
specifies a version number of this License which applies to it and
``any later version'', you have the option of following the terms and
``any later version'', you have the option of following the terms and
conditions either of that version or of any later version published by
conditions either of that version or of any later version published by
the Free Software Foundation.  If the Library does not specify a
the Free Software Foundation.  If the Library does not specify a
license version number, you may choose any version ever published by
license version number, you may choose any version ever published by
the Free Software Foundation.
the Free Software Foundation.
 
 
@item
@item
If you wish to incorporate parts of the Library into other free
If you wish to incorporate parts of the Library into other free
programs whose distribution conditions are incompatible with these,
programs whose distribution conditions are incompatible with these,
write to the author to ask for permission.  For software which is
write to the author to ask for permission.  For software which is
copyrighted by the Free Software Foundation, write to the Free
copyrighted by the Free Software Foundation, write to the Free
Software Foundation; we sometimes make exceptions for this.  Our
Software Foundation; we sometimes make exceptions for this.  Our
decision will be guided by the two goals of preserving the free status
decision will be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting the sharing
of all derivatives of our free software and of promoting the sharing
and reuse of software generally.
and reuse of software generally.
 
 
@iftex
@iftex
@heading NO WARRANTY
@heading NO WARRANTY
@end iftex
@end iftex
@ifinfo
@ifinfo
@center NO WARRANTY
@center NO WARRANTY
@end ifinfo
@end ifinfo
 
 
@item
@item
BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
OTHER PARTIES PROVIDE THE LIBRARY ``AS IS'' WITHOUT WARRANTY OF ANY
OTHER PARTIES PROVIDE THE LIBRARY ``AS IS'' WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
 
 
@item
@item
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
DAMAGES.
@end enumerate
@end enumerate
 
 
@iftex
@iftex
@heading END OF TERMS AND CONDITIONS
@heading END OF TERMS AND CONDITIONS
@end iftex
@end iftex
@ifinfo
@ifinfo
@center END OF TERMS AND CONDITIONS
@center END OF TERMS AND CONDITIONS
@end ifinfo
@end ifinfo
 
 
@page
@page
@appendixsubsec How to Apply These Terms to Your New Libraries
@appendixsubsec How to Apply These Terms to Your New Libraries
 
 
  If you develop a new library, and you want it to be of the greatest
  If you develop a new library, and you want it to be of the greatest
possible use to the public, we recommend making it free software that
possible use to the public, we recommend making it free software that
everyone can redistribute and change.  You can do so by permitting
everyone can redistribute and change.  You can do so by permitting
redistribution under these terms (or, alternatively, under the terms of the
redistribution under these terms (or, alternatively, under the terms of the
ordinary General Public License).
ordinary General Public License).
 
 
  To apply these terms, attach the following notices to the library.  It is
  To apply these terms, attach the following notices to the library.  It is
safest to attach them to the start of each source file to most effectively
safest to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least the
convey the exclusion of warranty; and each file should have at least the
``copyright'' line and a pointer to where the full notice is found.
``copyright'' line and a pointer to where the full notice is found.
 
 
@smallexample
@smallexample
@var{one line to give the library's name and an idea of what it does.}
@var{one line to give the library's name and an idea of what it does.}
Copyright (C) @var{year}  @var{name of author}
Copyright (C) @var{year}  @var{name of author}
 
 
This library is free software; you can redistribute it and/or modify it
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.
your option) any later version.
 
 
This library is distributed in the hope that it will be useful, but
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.
Lesser General Public License for more details.
 
 
You should have received a copy of the GNU Lesser General Public
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA.
USA.
@end smallexample
@end smallexample
 
 
Also add information on how to contact you by electronic and paper mail.
Also add information on how to contact you by electronic and paper mail.
 
 
You should also get your employer (if you work as a programmer) or your
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a ``copyright disclaimer'' for the library, if
school, if any, to sign a ``copyright disclaimer'' for the library, if
necessary.  Here is a sample; alter the names:
necessary.  Here is a sample; alter the names:
 
 
@smallexample
@smallexample
Yoyodyne, Inc., hereby disclaims all copyright interest in the library
Yoyodyne, Inc., hereby disclaims all copyright interest in the library
`Frob' (a library for tweaking knobs) written by James Random Hacker.
`Frob' (a library for tweaking knobs) written by James Random Hacker.
 
 
@var{signature of Ty Coon}, 1 April 1990
@var{signature of Ty Coon}, 1 April 1990
Ty Coon, President of Vice
Ty Coon, President of Vice
@end smallexample
@end smallexample
 
 
That's all there is to it!
That's all there is to it!
 
 

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