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 permit-
ted 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 de-
tail 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 condi-
tions either of that version or of any later version published by the Free Software Foundation. If the Pro-
gram 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 condi-
tions 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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