[m-rev.] for review: support MS VC 2015

[Sebastian Godelet]

Hi Julien,

> 
> I'll add your diff, since that seems as good a way as any to solve the problem.
>
Thanks. :) When this works, I can continue testing x64 support
> 
> I used Visual Studio 2013, 2015 didn't exist when I built the 14.01 package!
> (I don't remember whether it was the community edition or not.)
>
Sorry I was imprecise here, I meant, that was the edition which you might have used.
There is also an Express edition. Yeah of course 14.01 was earlier than July 2015, I should have worded that better.

PS: Should I make a pull request or will you just apply the diff directly?

Sebastian.