GPL - GSL and derivative work.

[Nicolai Hanssing <nuh at kampsax dot dtu dot dk>]

Dear listmembers

I was wondering what the authors of gsl, consideres to be derivative work.
An example follows:

--------
A firm writes an application, that uses/links with gsl. The firm does not
however modify the gsl-source.

Now the firm wants to sell/distribute the application, then what is forced
by the GPL?

The firm,
*) Has to make the source of the application publicly available?
I.e. will rewrite the application to not use GSL .... :-)
*) Has to distribute the source of gsl along with the application?
*) Has to include the GPL-license in the documaentation?
*) Must not advertize with the use of GSL without permission?
*) anything else...

I'm currently writing my thesis in cooperation with a firm, and I'm using
gsl, so what are the firm's possibilities afterwards [of course the source
is public - it's a thesis] for future use?


Regards
	Nicolai Hanssing
	Denmark