SPEC Kit 340: Open Source Software  · 93
FREE SOFTWARE FOUNDATION
GNU General Public License Version 3
http://www.gnu.org/licenses/gpl.html
The GNU General Public License v3.0 - GNU Project - Free Software Foundation
http://www.gnu.org/licenses/gpl.html[6/26/14 11:35:43 AM]
to run the unmodified Program. The output from running a covered work is covered by this License only if
the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use
or other equivalent, as provided by copyright law.
You may make, run and propagate covered works that you do not convey, without conditions so long as
your license otherwise remains in force. You may convey covered works to others for the sole purpose of
having them make modifications exclusively for you, or provide you with facilities for running those works,
provided that you comply with the terms of this License in conveying all material for which you do not
control copyright. Those thus making or running the covered works for you must do so exclusively on your
behalf, under your direction and control, on terms that prohibit them from making any copies of your
copyrighted material outside their relationship with you.
Conveying under any other circumstances is permitted solely under the conditions stated below.
Sublicensing is not allowed; section 10 makes it unnecessary.
3. Protecting Users' Legal Rights From Anti-Circumvention Law.
No covered work shall be deemed part of an effective technological measure under any applicable law
fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar
laws prohibiting or restricting circumvention of such measures.
When you convey a covered work, you waive any legal power to forbid circumvention of technological
measures to the extent such circumvention is effected by exercising rights under this License with respect
to the covered work, and you disclaim any intention to limit operation or modification of the work as a
means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of
technological measures.
4. Conveying Verbatim Copies.
You may convey 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; keep intact
all notices stating that this License and any non-permissive terms added in accord with section 7 apply to
the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this
License along with the Program.
You may charge any price or no price for each copy that you convey, and you may offer support or
warranty protection for a fee.
5. Conveying Modified Source Versions.
You may convey a work based on the Program, or the modifications to produce it from the Program, in the
form of source code under the terms of section 4, provided that you also meet all of these conditions:
a) The work must carry prominent notices stating that you modified it, and giving a relevant date.
b) The work must carry prominent notices stating that it is released under this License and any
conditions added under section 7. This requirement modifies the requirement in section 4 to “keep
intact all notices”.
c) You must license the entire work, as a whole, under this License to anyone who comes into
possession of a copy. This License will therefore apply, along with any applicable section 7
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