dmd Backend converted to Boost License

[Iain Buclaw via Digitalmars-d-announce]

On 7 April 2017 at 23:49, Walter Bright via Digitalmars-d-announce
<digitalmars-d-announce at puremagic.com> wrote:
> Note that this also resolves the long-standing legal issue with D's inline
> assembler being backend licensed, and so not portable to gdc/ldc.
>

That makes the assumption that license was the reason why it's not included. ;-)