The CMAKE_BUILD_TYPE CMake variable is only valid for single-configuration generator (like Linux Makefiles), and not for multi-configuration generator (like for Visual Studio). So let's try to use a CMake generator expression instead.
The CMAKE_BUILD_TYPE CMake variable is only valid for single-configuration generator (like Linux Makefiles), and not for multi-configuration generator (like for Visual Studio). So let's try to use a CMake generator expression instead.