MSVC_RUNTIME_LIBRARY value 'MultiThreadedDLL' not known for this ASM compiler.
When clang-cl is being used with an effective enable_languages(ASM)
and set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>DLL" CACHE STRING "MSVC Runtime Library")
, CMake will fail to configure with an error due to CMAKE_ASM_COMPILE_OPTIONS_MSVC_RUNTIME_LIBRARY_MultiThreadedDLL
not being set. This seems not entirely correct - as there isn't a flag for the runtime library with assembly AFAIK.