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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
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 modi
fi
ed version of the Library.
The precise terms and conditions for copying, distribution and modi
fi
cation 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.
GNU LESSER GENERAL PUBLIC LICENSE
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 modi
fi
cations and/or translated straightforwardly
into another language. (Hereinafter, translation is included without limitation in the term
"
modi
fi
cation
"
.)
"
Source code
"
for a work means the preferred form of the work for making modi
fi
cations
