User's Manual
60
a) You must cause the modified files to carry prominent
notices stating that you changed the les 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 identiable 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
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.