[dmd-internals] DMD now requires a working D compiler to be build

[Walter Bright via Digitalmars-d]

On 3/8/2015 7:49 AM, Vladimir Panteleev wrote:
> Congratulations are in order.

Yes.

> I have a question from Digger's perspective:
>
> Which version of DMD will be required to build DDMD?
>
> Will DDMD code be constrained to the feature set of DMD 2.067?
>
> Will future DMD versions promise to never break any DDMD code from any point in
> time?
>
> I certainly hope we aren't going to need a long daisy chain of DMD versions in
> order to build DMD completely from source...

Hmm. That does leave us with the problem of bootstrapping it on a new platform. 
That would suggest constraining it to be compilable with 2.067.