Wortmann Terra RS 232 Manuel De L'utilisateur page 132

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make sure that you have the freedom to distribute copies of free software (and charge for
this service if you wish); that you receive source code or can get it if you want it; that you
can change the software and use pieces of it in new free programs; and that you are infor-
med that you can do these things. To protect your rights, we need to make restrictions that
forbid distributors to deny you these rights or to ask you to surrender these rights. These
restrictions translate to certain responsibilities for you if you distribute copies of the library
or if you modify it. For example, if you distribute copies of the library, whether gratis or
for a fee, you must give the recipients all the rights that we gave you. You must make sure
that they, too, receive or can get the source code. If you link other code with the library, you
must provide complete object files to the recipients, so that they can relink them with the
library after making changes to the library and recompiling it. And you must show them
these terms so they know their rights. We protect your rights with a two-step method: (1)
we copyright the library, and (2) we offer you this license, which gives you legal permission
to copy, distribute and/or modify the library. 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, inclu-
ding 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
132
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, per-
mission 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 distribut-
ed 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;

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Terra rs 422Terra rs 485

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