Table des Matières
Publicité
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
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
verbatim 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
136
GNU LESSER GENERAL PUBLIC LICENSE
modules it contains, plus any associated interface
definition files, plus the scripts used to control compilation
and installation 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. Therefore, Subsection 2d
requires that any application-supplied function or table
used by this function must be optional: if the application
Publicité
Table des Matières
