34
Appendix
9. Acceptance Not Required for Having Copies.
You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a
covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not
require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered
work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered
work, you indicate your acceptance of this License to do so.
10. Automatic Licensing of Downstream Recipients.
Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run,
modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties
with this License.
An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or
subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction,
each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's
predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding
Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For
example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License,
and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is
infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
11. Patents.
A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the
Program is based. The work thus licensed is called the contributor's “contributor version”.
A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already
acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using,
or selling its contributor version, but do not include claims that would be infringed only as a consequence of further
modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent
sublicenses in a manner consistent with the requirements of this License.
Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential
patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its
contributor version.
In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated,
not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement).
To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent
against the party.
If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not
available for anyone to copy, free of charge and under the terms of this License, through a publicly available network
server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available,
or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner
consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly
relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country,
or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country
that you have reason to believe are valid.
If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring
conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing
them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is
automatically extended to all recipients of the covered work and works based on it.
