Auto-bootstrapping builds of LDC with DDMD frontend

[Joseph Rushton Wakeling via digitalmars-d-ldc]

Hello all,

This question relates to my experience snap-packaging LDC (the 
current package is still pending review in the Ubuntu store, BTW).

Since building more recent LDC releases requires a working D 
compiler, the snap package includes `ldc` as a build dependency 
(which means in practice, the snapcraft build process installs 
the ldc deb package included in the standard Ubuntu 
repositories).  However, it would definitely be nicer not to have 
to rely on this being available.

Past threads on the subject describe how to bootstrap manually:
https://forum.dlang.org/post/mailman.1044.1471415063.3131.digitalmars-d-ldc@puremagic.com

... but I'm unaware of any auto-bootstrap option akin to dmd's 
`AUTO_BOOTSTRAP=1` make option.

Is there anything currently available or in the works for 
auto-bootstrapping?

Thanks & best wishes,

     -- Joe