2. 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.
3. 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 interac-
tive 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 inde-
pendent and separate works in themselves, then this License, and its terms, do not ap-
ply to those sections when you distribute them as separate works. But when you dis-
tribute 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 writ-
ten 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 on the Program with the Pro-
gram (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.
4. 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:
1. Accompany it with the complete corresponding machinereadable source code,
which must be distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
2. 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 distribu-
tion, a complete machinereadable copy of the corresponding source code, to be dis-
tributed under the terms of Sections 1 and 2 above on a medium customarily used
for software interchange; or,
3. Accompany it with the information you received as to the offer to distribute corre-
sponding source code. (This alternative is allowed only for noncommercial distribu-
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