jellyfin-media-player/CMakeModules/GetDate.cmake

MACRO (TODAY RESULT) 
    IF (WIN32) 
        #EXECUTE_PROCESS(COMMAND "cmd" " /C date /T" OUTPUT_VARIABLE ${RESULT})
        #string(REGEX REPLACE "(..)/(..)/(....).*" "\\3\\2\\1" ${RESULT} ${${RESULT}})
        set(${RESULT})
    ELSEIF(UNIX) 
        EXECUTE_PROCESS(COMMAND "date" "+%d/%m/%Y" OUTPUT_VARIABLE ${RESULT}) 
        string(REGEX REPLACE "(..)/(..)/(....).*" "\\3\\2\\1" ${RESULT} ${${RESULT}}) 
    ELSE (WIN32) 
        MESSAGE(SEND_ERROR "date not implemented") 
        SET(${RESULT} 000000) 
    ENDIF (WIN32) 
ENDMACRO (TODAY)