This product uses software program which is distributed under the GPL license with a Apple OS Exception . You can
see this Exception text at http://www.cups.org/documentation.php/license.html.
GPL software with a Apple OS Exception: CUPS
<Apple OS Exception text>
In addition, as the copyright holder of CUPS, Apple Inc. grants the following special exceptions:
Apple Operating System Development License Exception; Software that is developed by any person or entity for an
Apple Operating System ("Apple OS-Developed Software"), including but not limited to Apple and third party printer
drivers, filters, and backends for an Apple Operating System, that is linked to the CUPS imaging library or based on
any sample filters or backends provided with CUPS shall not be considered to be a derivative work or collective work
based on the CUPS program and is exempt from the mandatory source code release clauses of the GNU GPL. You
may therefore distribute linked combinations of the CUPS imaging library with Apple OS-Developed Software without
releasing the source code of the Apple OS-Developed Software. You may also use sample filters and backends
provided with CUPS to develop Apple OS-Developed Software without releasing the source code of the Apple OS-
Developed Software.
An Apple Operating System means any operating system software developed and/or marketed by Apple Computer,
Inc., including but not limited to all existing releases and versions of Apple's Darwin, Mac OS X, and Mac OS X
Server products and all follow-on releases and future versions thereof.
This exception is only available for Apple OS-Developed Software and does not apply to software that is distributed for
use on other operating systems.
All CUPS software that falls under this license exception have the following text at the top of each source file:
This file is subject to the Apple OS-Developed Software exception.
///////////////////////////////////////////////////////////////////
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU
General Public License is intended to guarantee your freedom to share and change free software--to make sure the
software is free for all its users. This General Public License applies to most of the Free Software Foundation's
software and to any other program whose authors commit to using it. (Some other Free Software Foundation software
is covered by the GNU Lesser General Public License instead.) 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 this service 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 make restrictions that forbid anyone to deny you these rights or to ask you to
surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the
software, or if you modify it.
For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all
the rights that you have. 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.
We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal
permission to copy, distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain that everyone understands that there is no
warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to
know that what they have is not the original, so that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors
of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we
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