如果给定的字串或变量值域给定的正则表达式匹配的话,表达式返回真。
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")
或者
IF(NOT (src MATCHES ".*2009-10-20.*")) ...
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