What makes D, D?

[Michiel Helvensteijn]

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. A D compiler is a D
compiler if:

* it is DMD, or
* it translates D code the same way as DMD.

-- 
Michiel Helvensteijn