1. 追加CMAKE_CXX_FLAGS_Build Type

set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")

如果CMAKE Flags已经设置了/MD，可以不能发挥作用。可以采用方法2.

2. 替换CAMKE_FLAGS

    set(CMAKE_CXX_FLAGS_RELEASE "/MT")
    set(CMAKE_CXX_FLAGS_DEBUG "/MTd")

3. 或者将已经存在的/MD、/MDd替换为/MT、/MTd

if (MSVC)
    set(CompilerFlags
        CMAKE_CXX_FLAGS
        CMAKE_CXX_FLAGS_DEBUG
        CMAKE_CXX_FLAGS_RELEASE
        CMAKE_C_FLAGS
        CMAKE_C_FLAGS_DEBUG
        CMAKE_C_FLAGS_RELEASE
        )
    foreach(CompilerFlag ${CompilerFlags})
        string(REPLACE "/MD" "/MT" ${CompilerFlag} "${${CompilerFlag}}")
    endforeach()
endif(MSVC)