Gigaset SL910 Manual De Instrucciones página 99

Open Source Software
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
certain 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 linking 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 developers 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 certain 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 oper-
ating 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 difference 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 of those functions and data) to form executables.
The "Library", below, refers to any such software library or work which has been distributed under these terms. A "work based on the Library"
means 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 ver-
batim or with modifications and/or translated straightforwardly into another language. (Hereinafter, translation is included without limitation in
the term "modification".)
"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 associated interface definition files, plus the scripts used to control compilation and instal-
lation of the library.
Activities other than copying, distribution and modification 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 constitute 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 transferring 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, provided 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.
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.
d) 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 the facility, 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 function in a library to compute square roots has a purpose that is entirely well-defined independent of the application. There-
fore, 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.)
97