Wouter van Ooijen wrote:

>>Do you want to ensure that any enhanced version of the
>>library can still
>>be used in closed-source commercial firmware?
>>
>>
>
>Yes. And on top of that I want to be sure that when such a library is
>spread it is still free in the same sense as my original.
>
>Wouter van Ooijen
>
>
>
The Artistic License is widely used in Perl circles where practically al
libraries are distributed and used in source form.
It has an optional clause that might fit your needs:

8.Aggregation of this Package with a commercial distribution is always
permitted provided that the use of this Package is embedded; that is,
when no overt attempt is made to make this Package's interfaces visible
to the end user of the commercial distribution. Such use shall not be
construed as a distribution of this Package.

Dan

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