Why this code can't take advantage from CTFE?

[Andrea Fontana via Digitalmars-d-learn]

On Wednesday, 3 February 2016 at 16:24:19 UTC, Adam D. Ruppe 
wrote:
> On Wednesday, 3 February 2016 at 16:07:59 UTC, Messenger wrote:
>> What is a good way to try to force it? Using enum? Then 
>> optionally copying the value once to avoid the "manifest 
>> constant" copy/paste behaviour, where applicable?
>
> Yes, or static local variables are ctfe initialized too.

But if I want a normal var, not static or enum?
There's no way to force it?