Sony STR-DA5700ES Manual

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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 
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.

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 

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