Remove unnecessary use of non-portable 'mkdir()'

[Dirk Hohndel]

On Sun, Feb 15, 2015 at 11:53:32PM +0200, Lubomir I. Ivanov wrote:
> On 15 February 2015 at 23:39, Dirk Hohndel <dirk at hohndel.org> wrote:
> >
> > Now all that's missing is the code to make my Windows and Mac builds work
> > again...
> 
> i replied with an attachment in the other thread - "Re: Build issues"

OOps. missed the attachment.

Pushed. Now let's test this. I know this is backwards... should have
tested before pushing. Double OOOPPSS

/D