So what's the deal with DFLAGS?

[rikki cattermole via Digitalmars-d]

On 14/10/2016 3:41 PM, Andrei Alexandrescu wrote:
> On 10/13/16 10:29 PM, rikki cattermole wrote:
>> On 14/10/2016 3:20 PM, Lurker wrote:
>>> On Friday, 14 October 2016 at 00:47:34 UTC, Andrei Alexandrescu wrote:
>>>> Should we do something about
>>>> https://issues.dlang.org/show_bug.cgi?id=1660? -- Andrei
>>>
>>> Srsly, the bug is over 8 years old, any only one person complained. It's
>>> not even a bug but a feature request.
>>>
>>> Close it as won't fix and move on.
>>
>> dub respects it so it would break that now.
>
> How? Does it translate DFLAGS into command line parameters for the
> compiler? -- Andrei

Indeed[0].

[0] 
https://github.com/dlang/dub/blob/7662bce843531c32d7dae853afc5214b993aa6f2/source/dub/package_.d#L390