cmake 判断操作系统平台

MESSAGE(STATUS "operation system is ${CMAKE_SYSTEM}")
 
IF (CMAKE_SYSTEM_NAME MATCHES "Linux")
    MESSAGE(STATUS "current platform: Linux ")
ELSEIF (CMAKE_SYSTEM_NAME MATCHES "Windows")
    MESSAGE(STATUS "current platform: Windows")
ELSEIF (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
    MESSAGE(STATUS "current platform: FreeBSD")
ELSE ()
    MESSAGE(STATUS "other platform: ${CMAKE_SYSTEM_NAME}")
ENDIF (CMAKE_SYSTEM_NAME MATCHES "Linux")
 
MESSAGE(STSTUS "###################################")