It seems this issue is related to the build environment, rather than ReactOS itself (Or is it?).
A "regression", as (VS2015) AppVeyor CI was dropped?
Some VS component is missing on VS2017/VS2019 by default?
A "cross-compile" issue, maybe related to in-progress PR3602?
AppVeyor: (restored and updated, and allowing CMake 3.16.2)
- VS2015 itself, on VS2015/VS2017 images:
- VS2017 as '14.0', on VS2017 image,
VS2019 as '14.0', on VS2019 image:
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