For SqSrc it is simple, MIT licensed . See http://www.squeaksource.com/ss.html 
  and personally confirmed by Lukas Renggli

On Aug 9, 2008, at 7:37 PM, tim Rowledge wrote:

> Present were  craig, randal, tim, yoshiki, with technical help in  
> Qwaq Forum matters from Andreas and Josh. The Forum stuff works  
> quite well. Randal did not sing for us this time but instead beat  
> our avatars with a wall.
>
> 1. website; We agreed that Janko's proposal would be accepted. (Igor  
> subsequently added his agreement via email).
> 2. licensing; still no contact with Ward Cunningham nor Andy  
> Greenberg wrt re-licensing paperwork. Since Andy wrote a  
> considerable portion of the CCodeGenerator and related classes for  
> plugins, this is quite important.
> 	- Also noted wrt this subject: we still need notices on SqSrc, MC,  
> Mantis about contributions, pointing out that they *must* be MIT or  
> we can't accept them for inclusion in the core
>
> tim
> --
> tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
> Useful random insult:- If he were any more stupid, he'd have to be  
> watered twice a week.
>
>
>