[Freeciv-Dev] Re: GNU FDL

[Jason Dorje Short <jdorje@xxxxxxxxx>]

Daniel Markstedt wrote:
> Quick question:
>
> Can we use pictures licensed under the GNU Free Documentation License
> in Freeciv?
No and yes.

The GFDL, incredibly, is incompatible with the GPL because it has some 
very bad clauses about obfuscation being illegal.  So GFDL and GPL bits 
cannot be mixed together.
However it is possible to include GFDL files within the freeciv 
distribution, so long as we make clear which file is under which 
licence.  This is perhaps not a good idea since it's not clear to me 
that the GFDL even qualifies as an open-source licence (according to 
debian, for intance).
IANAL; the above is just my understanding. The best solution is to get 
the author to dual-licence the picture.
-jason