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

[Walter Bright via Digitalmars-d]

On 3/9/2015 12:30 AM, Daniel Murphy wrote:
> "Walter Bright"  wrote in message news:mdjh6g$215p$1 at digitalmars.com...
>
>> Not really. I never had to compile one one machine and copy the result onto
>> another.
>
> It doesn't have to be cross-architecture to be a cross compiler.

As far as I'm concerned, if it's running on the same machine, it is not a cross 
compiler, it's a different memory model.


>> How easy it is to copy the files over would decide which method is more
>> convenient. Besides, it is likely the vast majority of the work would be in
>> the back end, which remains in C++.
>
> I guess that makes sense.  It should be easier to apply a backend patch to two
> versions than it would be with a large frontend patch.
>
> Anyway, after the new platform is brought up, the original 2.067 still won't be
> able to target it and will therefore no longer be a suitable minimum host
> compiler version. This could be fixed by creating a point release for 2.067 that
> includes the new platform support, or by bumping the version requirement to the
> latest release.  If we're talking months, then a point release is reasonable.
> If 2.067 is years old by then, it's probably best to bump the requirement.

Yup.