Speed up `dub`.

[Daniel Kozak via Digitalmars-d-learn]

I am not sure but on Arch linux I always recompile dub myself because by 
default it is build without release flags too.


Dne 2.6.2016 v 15:07 ciechowoj via Digitalmars-d-learn napsal(a):
> Maybe it would be worth to write something about the issue here 
> https://github.com/dlang/dub#installation . I'm curious how the 
> pre-compiled versions are built.