Software License
This product uses parts of the software from the Independent JPEG Group. This product uses parts of the software owned by the Freetype Project (www.
freetype.org). This product uses some software programs which are distributed under the GPL/LGPL license. Accordingly, the following GPL and LGPL
software source codes that have been used in this product can be provided after asking to [email protected]. GPL software: Linux Kernel,
Busybox, Binutils LGPL software: Glibc, ffmpeg, smpeg, libgphoto, libusb, SDL
GNU GENERAL PUBLIC LICENSE
❑
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://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
0.
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.
1. Source Code.
The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any nonsource 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.
The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source.
The Corresponding Source for a work in source code form is that same work.
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