Before doing anything else, Charles, why not ask the original author of 
UCL if he'd be willing to release the code under BSD-style license? I 
belive this has been done for other third-party software.

/Erik

David Laight wrote:

>>     No, they aren't.  Copyrights do not prevent cleanroom
>>implementations; however, patents could.
>>    
>>
>
>However a 'cleanroom' implementation has to be done from
>documentation that is in the public domain (or some such
>definition).  Using GPL source code isn't...
>
>	David
>
>  
>