Nos regimos por la Licencia
Pública General GNU
Texto completo de las
normativas GNU original en inglés.
GNU GENERAL PUBLIC LICENSE -Version 3, 29 June 2007 Copyright © 2007 Free Software Foundation, Inc. <https://fsf.org/> Everyone is permitted to copy and distribute verbatim
copies of this license document, but changing it is not allowed.Preamble
The GNU General Public License is a free, copyleft license for software and other kinds of works..The licenses for most
software and other practical works are designed to take away your freedom to
share and change the works. By contrast, the GNU General Public License is
intended to guarantee your freedom to share and change all versions of a
program--to make sure it remains free software for all its users. We, the Free
Software Foundation, use the GNU General Public License for most of our
software; it applies also to any other work released this way by its authors.
You can apply it to your programs, too.
When we speak of free software, we are referring to
freedom, not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge for them
if you wish), that you receive source code or can get it if you want it, that
you can change the software or use pieces of it in new free programs, and that
you know you can do these things.
To protect your rights, we need to prevent others from
denying you these rights or asking you to surrender the rights. Therefore, you
have certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a
program, whether gratis or for a fee, you must pass on to the recipients the
same freedoms that you received. You must make sure that they, too, receive or
can get the source code. And you must show them these terms so they know their
rights.
Developers that use the GNU GPL protect your rights
with two steps: (1) assert copyright on the software, and (2) offer you this
License giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL
clearly explains that there is no warranty for this free software. For both
users' and authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to authors
of previous versions.
Some devices are designed to deny users access to
install or run modified versions of the software inside them, although the
manufacturer can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic pattern of
such abuse occurs in the area of products for individuals to use, which is
precisely where it is most unacceptable. Therefore, we have designed this
version of the GPL to prohibit the practice for those products. If such
problems arise substantially in other domains, we stand ready to extend this
provision to those domains in future versions of the GPL, as needed to protect
the freedom of users.
Finally, every program is threatened constantly by
software patents. States should not allow patents to restrict development and
use of software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could make it
effectively proprietary. To prevent this, the GPL assures that patents cannot
be used to render the program non-free.The
precise terms and conditions for copying, distribution and modification follow.
TERMS AND CONDITIONS Definitions.“This License” refers
to version 3 of the GNU General Public License. “Copyright” also means
copyright-like laws that apply to other kinds of works, such as semiconductor masks.“The Program” refers to any
copyrightable work licensed under this License. Each licensee is addressed as
“you”. “Licensees” and “recipients” may be individuals or organizations.
To “modify” a work means to copy from or adapt all or
part of the work in a fashion requiring copyright permission, other than the
making of an exact copy. The resulting work is called a “modified version” of
the earlier work or a work “based on” the earlier work.
A “covered work” means either the unmodified Program
or a work based on the Program.To “propagate” a work
means to do anything with it that, without permission, would make you directly
or secondarily liable for infringement under applicable copyright law, except
executing it on a computer or modifying a private copy. Propagation includes
copying, distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To “convey” a work means any kind of propagation that
enables other parties to make or receive copies. Mere interaction with a user
through a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays “Appropriate
Legal Notices” to the extent that it includes a convenient and prominently
visible feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the extent
that warranties are provided), that licensees may convey the work under this
License, and how to view a copy of this License. If the interface presents a
list of user commands or options, such as a menu, a prominent item in the list
meets this criterion.
1Source Code.The
“source code” for a work means the preferred form of the work for making
modifications to it. “Object code” means any non-source form of a work.
A “Standard Interface” means an interface that either
is an official standard defined by a recognized standards body, or, in the case
of interfaces specified for a particular programming language, one that is
widely used among developers working in that language.
The “System Libraries” of an executable work include
anything, other than the work as a whole, that (a) is included in the normal form
of packaging a Major Component, but which is not part of that Major Component,
and (b) serves only to enable use of the work with that Major Component, or to
implement a Standard Interface for which an implementation is available to the
public in source code form. A “Major Component”, in this context, means a major
essential component (kernel, window system, and so on) of the specific
operating system (if any) on which the executable work runs, or a compiler used
to produce the work, or an object code interpreter used to run it.
The “Corresponding Source” for a work in object code
form means all the source code needed to generate, install, and (for an
executable work) run the object code and to modify the work, including scripts
to control those activities. However, it does not include the work's System
Libraries, or general-purpose tools or generally available free programs which
are used unmodified in performing those activities but which are not part of
the work. For example, Corresponding Source includes interface definition files
associated with source files for the work, and the source code for shared
libraries and dynamically linked subprograms that the work is specifically
designed to require, such as by intimate data communication or control flow
between those subprograms and other parts of the work.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT
PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE
COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.
SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY
SERVICING, REPAIR OR CORRECTION.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR
AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES
AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS
OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN
IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
Traduccion
«Nuestra misión es preservar,
proteger y promover la libertad de usar, estudiar, copiar, modificar y
redistribuir programas de ordenador, así como defender los derechos de los
usuarios de software libre.»
La Licencia Pública
General de GNU o más conocida por su
nombre en inglés GNU General Public
License (o simplemente sus siglas en
inglés GNU GPL) es la licencia
de derecho de autor más ampliamente usada en el mundo
del software libre y código abierto, y garantiza a los usuarios
finales (personas, organizaciones, compañías) la libertad de usar, estudiar,
compartir (copiar) y modificar el software.
Su propósito es doble:
declarar que el software cubierto por esta licencia es libre, y protegerlo
(mediante una práctica conocida como copyleft)
de intentos de apropiación que restrinjan esas libertades a nuevos usuarios
cada vez que la obra es distribuida, modificada o ampliada. Esta licencia fue
creada originalmente por Richard Stallman fundador
de la Free Software Foundation(FSF) para
el proyecto GNU
La Free Software Foundation pone la GPL a
disposición de cualquiera que desee proteger los derechos de sus usuarios
finales (usar, compartir, estudiar y modificar), y otorgar a los beneficiarios
de un programa de ordenador u otro tipo de obra los
derechos de la definición de software libre. La GPL se
distingue del dominio público o de otras licencias de software
libre conocidas como permisivas por hacer hincapié en el copyleft, o sólo permitir que las
copias y derivados de una obra bajo la GPL perpetúen
la misma licencia.
La mayor parte del software GNU
es copyleft,
pero no todo; sin embargo, todo el software GNU
debe ser software libre.
Parte del software GNU
fue escrito por el equipo de la Free Software Foundation,
pero la mayor parte proviene de algunos voluntarios. La Free Software Foundation es titular del copyright de parte de ese
software, otra parte está bajo el copyright de sus autores.
Los usuarios o compañías que
distribuyen sus trabajos bajo las GPL,
pueden cobrar o distribuirlas gratuitamente. Esto distingue las GPL de
las licencias de software que prohíben su distribución comercial.
La FSF argumenta que no se debe restringir la distribución comercial
del software (incluyendo la redistribución), y en ese tenor la GPL establece
explícitamente que las obras cubiertas por esta licencia se pueden vender a
cualquier precio.