MSVC 2015 builds Failing After 2017 Support added

[Stephan Bergmann]

On 02/21/2017 08:06 AM, David Ostrovsky wrote:
> On Sun, 2017-02-19 at 20:53 +0000, Luke Benes wrote:
>> config_host.mk:
>> export UCRTSDKDIR=C:/PROGRA~2/WI3CF2~1/10/
>> export UCRTVERSION=10.0.10240.0
>>
>> Looking at the creation date of that folder, it matches the creation
>>  date of C:\Program Files (x86)\Microsoft Visual Studio 14.0.
>>
>> So it seems that even if you do not install the win 10 SDK component,
>> the MSVC 2015 installer will still create the "Windows Kits" folder
>> and install some files.
>
> Thanks for the infos. I think I understand now what is going on:
>
> * Install fresh VM
> * Install MSVC 2013
> * Istall SDK 8.x
> * try compile latest master: works as expected
> * Install MSVC 2015 *without* installing SDK 10
> * try compile latest master: broken
>
> Is that correct?

I have the same issue on my Windows box (where I installed MSVC 2013 and 
2015 over time); your recipe probably matches what I did there.