Auto-bootstrapping builds of LDC with DDMD frontend

[Joseph Rushton Wakeling via digitalmars-d-ldc]

On Sunday, 29 January 2017 at 22:13:54 UTC, Joseph Rushton 
Wakeling wrote:
> Actually I think it's possible to do entirely from within the 
> `snapcraft.yaml` config file.  Probably the best way is to just 
> define a 'part' that builds LDC 0.17.x, and then use the result 
> to build the actual _wanted_ LDC.  It's probably quite 
> straightforward, just wanted to check if it was necessary in 
> the first place.

PR to ldc2.snap that implements such an approach:
https://github.com/ldc-developers/ldc2.snap/pull/2