Appendix D Open Software Announcements

NWA3000-N Series User’s Guide

348

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. 

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 
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 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.