How to import for mixin contents only.

[Taylor Hillegeist via Digitalmars-d-learn]

On Thursday, 10 March 2016 at 17:05:26 UTC, Taylor Hillegeist 
wrote:
> On Thursday, 10 March 2016 at 16:51:32 UTC, Andrea Fontana 
> wrote:
>> On Thursday, 10 March 2016 at 16:20:42 UTC, Taylor Hillegeist 
>> wrote:
>>> [...]
>>
>> I wonder if compiler is smart enaugh to undestand that 
>> dependency is not needed at runtime in this case:
>>
>> http://dpaste.dzfl.pl/fd3bc2a839a3
>
> well the latest gdc isnt smart enough.

So interestingly this will work if i add -ffunction-sections  to 
my compiler options? no idea why?