RMT: Use Visual Studio 2015 for Compiling and linking the Windows version in PG10

On 03/28/2017 06:46 AM, I wrote in pgsql-general:
>
> I use Postgres on Windows 64 bit (8.1,10,WS2012R2,WS2016) for quite a while.
> I always install and upgrade from the ZIP binary distribution from
> enterpriseDB which works like a charm.
>
> In a recent fresh install I noticed that PostgreSQL 9.6.2 (older
> versions not tested anymore) requires Visual C++ 2013 Runtime library to
> be installed.
>
> It seems all binaries are linked against msvcr120.dll (verified with
> ProcExplorer of Sysinternals).
>
> I propose to switch to Visual Studio 2015 for the next distribution:
> - no more install of > 5 years old runtime library
> - seems to need no extra runtime library on newer systems (there is no
> msvcr140.dll after installation of VCR 2015)
> - when needed, VC Runtime Library 2015 is the same requirement as for
> recent Apache 2.4.xx versions
> - VS2015 build is already member of the build farm
> - I could easyly test the beta on recent Windows 64 OSs
>
> BTW, nowhere in the current documentation is mentioned the requirement
> of the VC++ runtime library installation.
>
> Thanks in advance
>

Now after feature freeze of the new version I wanted to address this topic to the Release Management Team.

Opinions?

Hans Buschmann