[drupal-devel] Drupal and GPL3

[Earl Dunovant]

Maybe I shouldn't, but...

On 10/7/05, Gerhard Killesreiter <killesreiter at physik.uni-freiburg.de> wrote:
> > For example the new SPAM module is under the BSD license.  The new
>
> GPL compatible.

http://www.opensource.org/licenses/bsd-license.php

I don't see anything that compels sharing of modifications like GPL
does. And it's real simple...no place to hide missing meanings.

So...what does "GPL compatible" mean?