The "cmake/CMakeLists.txt" is now deprecated, but there are some hidden problems with how it's forwarding to /CMakeLists.txt (in the repo root).

I found that some cmake policies get silently deactivated if one uses cmake/CMakeLists.txt

E.g. here:

Since CMP0091 needs to be set before languages are initialized, but

is reached first, the policy won't be active (which is quite counterintuitive)
and settings made here will be overridden by e.g. /MD still being present in CMAKE_CXX_FLAGS_*

(at least this is my interpretation of what happens, but I've observed /MD flag being present when it should not).