69
Open Source Software Licenses
use in the most ordinary way, to print or display an announcement inclu-
ding 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 Pro-
gram is not required to print an announcement.)
These requirements apply to the modified work as a whole. If identifiable sec-
tions 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 sepa-
rate 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.
3. You may copy and distribute the Program (or a work based on it, under Sec-
tion 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:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections 1 and
2 above on a medium customarily used for software interchange; or,
b) 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 perfor-
ming source distribution, a complete machine-readable copy of the corres-
ponding source code, to be distributed under the terms of Sections 1 and 2
above on a medium customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer to distri-
bute corresponding source code. (This alternative is allowed only for non-
commercial distribution and only if you received the program in object code
or executable form with such an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for making
modifications to it. For an executable work, complete source code means all
the source code for all modules it contains, plus any associated interface defi-
nition files, plus the scripts used to control compilation and installation of the
executable. However, as a special exception, the source code distributed need
not include anything that is normally distributed (in either source or binary
