if (NOT VCPKG_CMAKE_SYSTEM_NAME OR VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
    set(VCPKG_TARGET_IS_WINDOWS 1)
    if(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
        set(VCPKG_TARGET_IS_UWP 1)
    endif()
elseif(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "Darwin")
    set(VCPKG_TARGET_IS_OSX 1)
elseif(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "Linux")
    set(VCPKG_TARGET_IS_LINUX 1)
elseif(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "Android")
    set(VCPKG_TARGET_IS_ANDROID 1)
elseif(VCPKG_CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
    set(VCPKG_TARGET_IS_FREEBSD 1)
endif()