dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Mon, Aug 22, 2011 at 10:22:44AM -0700, Johan Hake wrote:
> Hello!
>
> A recent email discussion with Andre made me aware (again) of the
> incompatability between QPL and GPL. Not sure we have settled this issued, but
> I googled it and found the following link:
>
>   http://www.gnu.org/licenses/license-list.html
>
> scroll down to QPL. Here they suggest the following solution:
>
>   However, if you have written a program that uses QPL-covered library
>   (called FOO), and you want to release your program under the GNU GPL,
>   you can easily do that. You can resolve the conflict for your program
>   by adding a notice like this to it:
>
>
>      As a special exception, you have permission to link this
>      program with the FOO library and distribute executables, as
>      long as you follow the requirements of the GNU GPL in regard
>      to all of the software in the executable aside from FOO.
>
>   You can do this, legally, if you are the copyright holder for the program.
>   Add it in the source files, after the notice that says the program is
>   covered by the GNU GPL.
>
> For this to work all copyright holders need to agree. Not sure we need another
> author content process to use this solution though.

Andre also mentioned to me that we actually don't need those special
QPL pieces of CGAL (but can use GTS instead with improved efficiency)
so it might not be a problem. Andre knows more about this.

--
Anders