[GRASS5] license /usage

[Glynn Clements]

Christian G. Tveen wrote:

> I have a question from a customer, whether he can link his application
> towards grass without violating the license. The customer application is
> only used as an internal program within his organisation, and not
> intended for distribution or sale. The application also links against
> proprietary sw.

This is covered in clause 2:

  2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices
    stating that you changed the files 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.)

The main issue regarding combining GPL and non-GPL code is b) above,
which only applies to distribution.

-- 
Glynn Clements <glynn.clements at virgin.net>