how to specify a default configuration in a library's dub.json? (i.e if the use doesn't not have subConfigurations)

[Mike Parker]

On Wednesday, 26 May 2021 at 00:19:23 UTC, mw wrote:
> Hi,
>
> I just did a build fix, and added two configurations to 
> thrift's dub.json (whose   "targetType": "library")
>
> https://github.com/apache/thrift/pull/2397/files
>
> I want to know how to specify a default configuration in the 
> library's dub.json? (i.e if the use doesn't not have 
> subConfigurations).
>
> Then the existing library user does not have to change his 
> app's dub.json when he do `dub upgrade`.
>
> Thanks.

The first configuration in the file is the default.