What makes D, D?

[Ary Borenszweig]

Michiel Helvensteijn wrote:
> Sean Kelly wrote:
> 
>> Compiler writers are free to add features so long as they're compatible
>> with
>> the base language--just look at Microsoft's C++ compiler.  What makes a D
>> compiler a D compiler is that it conforms to the D language spec.
> 
> That's not exactly true, now is it? There is no D spec.

There is a D spec. Just a few things are not well defined.