How to run lit tests on Mac OSX without gcc?

[Johan Engelen via digitalmars-d-ldc]

On Thursday, 31 August 2017 at 22:58:10 UTC, David Nadlinger 
wrote:
> On 31 Aug 2017, at 19:08, Johan Engelen via digitalmars-d-ldc 
> wrote:
>
>> We could pass through specific ones explicitly:
>> ```
>>   config.environmen['CC'] = os.environ['CC']
>> ```
>
> Let's do that, then – it would have been used to compile the 
> standard libraries, etc. before outside of lit anyway.

https://github.com/ldc-developers/ldc/pull/2306