[vlc-devel] [PATCH] package/win32: build.sh: Force Win7 and MSVCRT when not using UCRT

[Martin Storsjö]

On Tue, 2 Jun 2020, Steve Lhomme wrote:

> That's the minimum we support in VLC 4.0.
>
> The CRT version to set for UCRT is 0xE00.

To select the UCRT, it's enough to just define _URT - you can do either 
that or define __MSVCRT_VERSION__=0xE00, but you don't do both.

Switching between msvcrt versions like this, on top of one single 
toolchain, works as long as you don't rely on other prebuilt libraries 
that depend on CRT specific details. In particular, the prebuilt libc++ is 
closely tied to the CRT used, so I'm afraid this approach doesn't work 
reliably for C++ code - unless you plan on building that as part of the 
VLC build as well.

// Martin