GNU GPL(7)
NAME
gpl - GNU General Public License
DESCRIPTION
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (c) 1989, 1991 Free Software Foundation, Inc.
59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 Library 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.
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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 have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND
MODIFICATION
0. This License applies to any program or other work which
contains a notice placed by the copyright holder saying
it may be distributed under the terms of this General
Public License. The ``Program'', below, refers to any
such program or work, and a ``work based on the
Program'' means either the Program or any derivative
work under copyright law: that is to say, a work
containing the Program or a portion of it, either
verbatim or with modifications and/or translated into
another language. (Hereinafter, translation is included
without limitation in the term ``modification''.) Each
licensee is addressed as ``you''.
Activities other than copying, distribution and
modification are not covered by this License; they are
outside its scope. The act of running the Program is
not restricted, and the output from the Program is
covered only if its contents constitute a work based on
the Program (independent of having been made by running
the Program). Whether that is true depends on what the
Program does.
1. You may copy and distribute verbatim copies of the
Program's 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 give any other recipients of the Program a
copy of this License along with the Program.
You may charge a fee for the physical act of
transferring a copy, and you may at your option offer
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warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any
portion of it, thus forming a work based on the Program,
and copy and distribute such modifications or work under
the terms of Section 1 above, provided that you also
meet all of these conditions:
a. You must cause the modified files to carry prominent
notices stating that you changed the files and the
date of any change.
b. You must cause any work that you distribute or
publish, that in whole or in part contains or is
derived from the Program or any part thereof, to be
licensed as a whole at no charge to all third
parties under the terms of this License.
c. If the modified program normally reads commands
interactively when run, you must cause it, when
started running for such interactive use in the most
ordinary way, to print or display an announcement
including an appropriate copyright notice and a
notice that there is no warranty (or else, saying
that you provide a warranty) and that users may
redistribute the program under these conditions, and
telling the user how to view a copy of this License.
(Exception: if the Program itself is interactive but
does not normally print such an announcement, your
work based on the Program is not required to print
an announcement.)
These requirements apply to the modified work as a
whole. If identifiable sections of that work are not
derived from the Program, and can be reasonably
considered independent and separate works in themselves,
then this License, and its terms, do not apply to those
sections when you distribute them as separate works.
But when you distribute the same sections as part of a
whole which is a work based on the Program, the
distribution of the whole must be on the terms of this
License, whose permissions for other licensees extend to
the entire whole, and thus to each and every part
regardless of who wrote it.
Thus, it is not the intent of this section to claim
rights or contest your rights to work written entirely
by you; rather, the intent is to exercise the right to
control the distribution of derivative or collective
works based on the Program.
In addition, mere aggregation of another work not based
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on the Program with the Program (or with a work based on
the Program) on a volume of a storage or distribution
medium does not bring the other work under the scope of
this License.
3. You may copy and distribute the Program (or a work based
on it, under Section 2) in object code or executable
form under the terms of Sections 1 and 2 above provided
that you also do one of the following:
a. Accompany it with the complete corresponding
machine-readable source code, which must be
distributed under the terms of Sections 1 and 2
above on a medium customarily used for software
interchange; or,
b. Accompany it with a written offer, valid for at
least three years, to give any third party, for a
charge no more than your cost of physically
performing source distribution, a complete machine-
readable copy of the corresponding source code, to
be distributed under the terms of Sections 1 and 2
above on a medium customarily used for software
interchange; or,
c. Accompany it with the information you received as to
the offer to distribute corresponding source code.
(This alternative is allowed only for noncommercial
distribution and only if you received the program in
object code or executable form with such an offer,
in accord with Subsection b above.)
The source code for a work means the preferred form of
the work for making modifications to it. For an
executable work, 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
executable. However, as a special exception, the source
code distributed need not include anything that is
normally distributed (in either source or binary form)
with the major components (compiler, kernel, and so on)
of the operating system on which the executable runs,
unless that component itself accompanies the executable.
If distribution of executable or object code is made by
offering access to copy from a designated place, then
offering equivalent access to copy the source code from
the same place counts as distribution of the source
code, even though third parties are not compelled to
copy the source along with the object code.
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4. You may not copy, modify, sublicense, or distribute the
Program except as expressly provided under this License.
Any attempt otherwise to copy, modify, sublicense or
distribute the Program is void, and will automatically
terminate your rights under this License. However,
parties who have received copies, or rights, from you
under this License will not have their licenses
terminated so long as such parties remain in full
compliance.
5. You are not required to accept this License, since you
have not signed it. However, nothing else grants you
permission to modify or distribute the Program or its
derivative works. These actions are prohibited by law
if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based
on the Program), you indicate your acceptance of this
License to do so, and all its terms and conditions for
copying, distributing or modifying the Program or works
based on it.
6. Each time you redistribute the Program (or any work
based on the Program), the recipient automatically
receives a license from the original licensor to copy,
distribute or modify the Program subject to these terms
and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights
granted herein. You are not responsible for enforcing
compliance by third parties to this License.
7. If, as a consequence of a court judgment or allegation
of patent infringement or for any other reason (not
limited to patent issues), conditions are imposed on you
(whether by court order, agreement or otherwise) that
contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you
cannot distribute so as to satisfy simultaneously your
obligations under this License and any other pertinent
obligations, then as a consequence you may not
distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of
the Program by all those who receive copies directly or
indirectly through you, then the only way you could
satisfy both it and this License would be to refrain
entirely from distribution of the Program.
If any portion of this section is held invalid or
unenforceable under any particular circumstance, the
balance of the section is intended to apply and the
section as a whole is intended to apply in other
circumstances.
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It is not the purpose of this section to induce you to
infringe any patents or other property right claims or
to contest validity of any such claims; this section has
the sole purpose of protecting the integrity of the free
software distribution system, which is implemented by
public license practices. Many people have made
generous contributions to the wide range of software
distributed through that system in reliance on
consistent application of that system; it is up to the
author/donor to decide if he or she is willing to
distribute software through any other system and a
licensee cannot impose that choice.
This section is intended to make thoroughly clear what
is believed to be a consequence of the rest of this
License.
8. If the distribution and/or use of the Program is
restricted in certain countries either by patents or by
copyrighted interfaces, the original copyright holder
who places the Program under this License may add an
explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only
in or among countries not thus excluded. In such case,
this License incorporates the limitation as if written
in the body of this License.
9. The Free Software Foundation may publish revised and/or
new versions of the General Public License from time to
time. Such new versions will be similar in spirit to
the present version, but may differ in detail to address
new problems or concerns.
Each version is given a distinguishing version number.
If the Program specifies a version number of this
License which applies to it and ``any later version'',
you have the option of following the terms and
conditions either of that version or of any later
version published by the Free Software Foundation. If
the Program does not specify a version number of this
License, you may choose any version ever published by
the Free Software Foundation.
10. If you wish to incorporate parts of the Program into
other free programs whose distribution conditions are
different, write to the author to ask for permission.
For software which is copyrighted by the Free Software
Foundation, write to the Free Software Foundation; we
sometimes make exceptions for this. Our decision will
be guided by the two goals of preserving the free status
of all derivatives of our free software and of promoting
the sharing and reuse of software generally.
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NO WARANTY
11. BECAUSE THE PROGRAM IS LICENSED FRE OF CHARGE, THERE IS
NO WARANTY FOR THE PROGRAM, TO THE EXTENT PERMITED BY
APLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING
THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE
PROGRAM ``AS IS'' WITHOUT WARANTY OF ANY KIND, EITHER
EXPRESED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARANTIES OF MERCHANTABILITY AND FITNES 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 ASUME THE COST OF AL
NECESARY SERVICING, REPAIR OR CORECTION.
12. IN NO EVENT UNLES REQUIRED BY APLICABLE LAW OR AGRED
TO IN WRITING WIL ANY COPYRIGHT HOLDER, OR ANY OTHER
PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS
PERMITED 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 LOS OF DATA OR
DATA BEING RENDERED INACURATE OR LOSES 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 BEN ADVISED OF THE POSIBILITY OF SUCH
DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the ``copyright'' line and a pointer to where the full notice is found.
Copyright (C)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARANTY; without even the implied warranty of
MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Also add information on how to contact you by electronic and
paper mail.
If the program is interactive, make it output a short notice
like this when it starts in an interactive mode:
Gnomovision version 69, Copyright (C)
Gnomovision comes with ABSOLUTELY NO WARANTY; for details
type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands show w and show c should show the
appropriate parts of the General Public License. Of course,
the commands you use may be called something other than show
w and show c; they could even be mouse-clicks or menu
items---whatever suits your program.
You should also get your employer (if you work as a
programmer) or your school, if any, to sign a ``copyright
disclaimer'' for the program, if necessary. Here is a
sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating
your program into proprietary programs. If your program is
a subroutine library, you may consider it more useful to
permit linking proprietary applications with the library.
If this is what you want to do, use the GNU Library General
Public License instead of this License.
SEE ALSO
gfdl(7), fsf-funding(7).
COPYRIGHT
Copyright (c) 1989, 1991 Free Software Foundation, Inc. 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
ATRIBUTES
See attributes(5) for descriptions of the following
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attributes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWgcc
Interface Stability External
NOTES
Source for gcc is available on http:/opensolaris.org.
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