Legal/Permission Question

[Walter Bright]

Gregor Richards wrote:
> Including major copyrighted aspects of an original, previously created 
> work is by definition copying. My very simple definition, while not very 
> nuanced, is accurate :)

Using the original implementation as a guide to making a clone is making 
a derivative work. I'm not a lawyer, but I have been grilled and basted 
by well-paid lawyers doing their due diligence about these things.