To protect each distributor, we want to make it very
clear that there is no warranty for the free library. Also, if
the library is modified by someone else and passed on,
the recipients should know that what they have is not
the original version, so that the original author’s
reputation will not be affected by problems that might
be introduced by others.
Finally, software patents pose a constant threat to the
existence of any free program. We wish to make sure
that a company cannot effectively restrict the users of a
free program by obtaining a restrictive license from a
patent holder. Therefore, we insist that any patent
license obtained for a version of the library must be
consistent with the full freedom of use specified in this
license.
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 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
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.
Содержание SRD-440
Страница 1: ...4 CHANNEL DVR User Manual SRD 440 ...