Licence

[Don Clugston]

Georg Wrede wrote:
> The Digital Mars D compiler (DMD) download consists of four parts, which 
> has licencing implications for *other developers of D compilers*:
> 
>  (1) The Compiler Back End.
>  (2) The Compiler Front End.
>  (3) The included libraries.
>  (4) All other files included in the download.
> 
> Digital Mars uses the same proprietary Compiler Back End ((1), above) in 
> the DMD compiler as in their other products. This back end is closed 
> source, and proprietary. (It is possibly the fastest and most efficient 
> back end on the market.)
> 
> If you want to use this Back End in your implementation of a D compiler, 
> please contact sales at digitalmars.com, for licensing terms. (We are also 
> available as expert consultants for any party developing their own D 
> compiler.)
> 
> *All the other parts* (i.e. (2), (3), and (4), above), are free for 
> anyone to copy, use, modify, and include in a free or commercial 
> compiler, and for other purposes.

I thought the compiler front end was only free for use for open-source 
compilers?