weird exception on windows

[Szabo Bogdan]

On Friday, 15 December 2017 at 21:56:48 UTC, Steven Schveighoffer 
wrote:
> On 12/15/17 10:08 AM, Kagamin wrote:
>> Maybe this https://issues.dlang.org/show_bug.cgi?id=18084
>
> Thanks for looking into this. I created a PR to fix.
>
> Szabo, can you please try with this patch and see if it fixes 
> your issue?
>
> https://github.com/dlang/phobos/pull/5932
>
> -Steve

I have installed DMD 2.77.1 and I can not find the patched file 
in the phobos folder... should I try this by building the 
compiler?

It seams that I can not build phobos without compiling dmd.. or 
maybe I don't know how...