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EULA 39
ENGLISH
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 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 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 things.
To protect your rights, we need to make restrictions
that forbid distributors to deny you these rights or
to ask you to surrender these rights. These restric-
tions translate to certain responsibilities for you if
you distribute copies of the library or if you modify
it. 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 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 complete object files to
the recipients, so that they can relink them with the
library after making changes to the library and
recompiling 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
library, and (2) we offer you this license, which
gives you legal permission to copy, distribute
and/or modify the library. To protect each distribu-
tor, we want to make it very clear that there is no
warranty for the free library. Also, if the library is
modified by someone else and passed on, the
recipients should know 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 introduced by others. Finally, software
patents pose a constant threat to the existence of
any free program. We wish to make sure that a
company cannot effectively restrict the users of a
free program by obtaining a restrictive license from
a patent holder. Therefore, we insist that any patent
license obtained for a version of the library must be
consistent with the full freedom of use specified in
this license. Most GNU software, including some
libraries, is covered by the ordinary GNU General
Public License. This license, the GNU Lesser General
Public License, applies to certain designated
libraries, and is quite different from the ordinary
General Public License. We use this license for cer-
tain libraries in order to permit linking those
libraries into non-free programs. When a program is
linked with a library, whether statically or using a
shared library, the combination of the two is legally
speaking a combined work,
a derivative of the original library. The ordinary
General Public License therefore permits such link-
ing only if the entire combination fits its criteria of
freedom. The Lesser General Public License permits
more lax criteria for linking other code with the
library. We call this license the “Lesser” General
Public License because it does Less to protect the
user’s freedom than the ordinary General Public
License. It also provides other free software devel-
opers Less of an advantage over competing non-
free programs. These disadvantages are the reason
we use the ordinary General Public License for
many libraries. However, the Lesser license provides
advantages in certain special circumstances. For
example, on rare occasions, there may be a special
need to encourage the widest possible use of a cer-
tain library, so that it becomes 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 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 software only, so we
use the Lesser General Public License. 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 free software. For example,
permission to use the GNU C Library in non-free
programs enables many more people to use the
whole GNU operating system, as well as its variant,
the GNU/Linux operating system. Although the
Lesser General Public License is Less protective of
the 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 that program
using a modified version of the Library. The precise
terms and conditions for copying, distribution and
modification follow. Pay close attention to the dif-
ference between a “work based on the library” and
a “work that uses the library.” The former contains
code derived from the library, whereas the latter
must be combined with the library in order to run.
Terms and Conditions for Copying, Distribution and
modification
0. This License Agreement applies to any software
library or other program which contains a notice
placed by the copyright holder or other authorized
party saying it may be
distributed under the terms of this Lesser General
Public License (also called “this License”). Each
licensee is addressed as “You.”
A “library” means a collection of software functions
and/or data prepared so as to be conveniently
linked with application programs (which use some
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The “Library,” below, refers to any such software
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either the Library or any derivative work under
copyright law: that is to say, a work containing the
Library or a portion of it, either verbatim or with
modifications and/or translated straightforwardly
into another language. (Hereinafter, translation is
included without limitation in the term “modifica-
tion.”)
“Source code” for a work means the preferred form
of the work for making modifications to it. For a
library, complete source code means all the source
code for all modules it contains, plus any associat-
ed interface definition files, plus the scripts used to
control compilation and installation of the library.
Activities other than copying, distribution and mod-
ification are not covered by this License; they are
outside its scope. The act of running a program
using the Library is not restricted, and output from
such a program is covered only if its contents con-
stitute a work based 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 and what the program that uses the Library
does.
1. You may copy and distribute verbatim copies of the
Library’s complete source code as you receive it, in
any medium, provided that you conspicuously and
appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep
intact all the notices that refer to this License and
to the absence of any warranty; and distribute a
copy of this License along with the Library.
You may charge a fee for the physical act of trans-
ferring a copy, and you may at your option offer
warranty protection in exchange for a fee.
2. 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 distribute such modifications
or work under the terms of Section 1 above, provid-
ed that you also meet all of these conditions:
a) The modified work must itself be a software
library; b) You must cause the files modified to carry
prominent notices stating that you changed the
files and the date of any change; and c) You must
cause the whole of the work to be licensed at no
charge to all third parties under the terms of this
License; and d) If a facility in the modified Library
refers to a function or a table of data to be sup-
plied by an application program that uses the facili-
ty, other than as an argument passed when the
facility is invoked, then you must make a good faith
effort to ensure that, in the event an application
does not supply such function or table, the facility
still operates, and performs whatever part of its
purpose remains meaningful. (For example, a func-
tion in a library to compute square roots has a pur-
pose that is entirely well-defined independent of
the application. Therefore, Subsection 2d requires
that any application-supplied function or table used
by this function must be optional: if the application
does not supply it, the square root function must
still compute square roots.)
These requirements apply to the modified work as a
whole. If identifiable sections of that work are not
derived from the Library, and can be reasonably
considered independent and separate works in
themselves, then this License, and its terms, do not
apply to those 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 on the Library, the distribu-
tion of the whole must be on the terms of this
License, whose permissions for other licensees
extend to the entire whole, and thus to each and
every part regardless of who wrote it.
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 exercise the right to
control the distribution of derivative or collective
works based on the Library.
Eula
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