2007-01-07 17:19:45 +00:00
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# - Try to find Flex
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# Once done this will define
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#
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# FLEX_FOUND - system has Flex
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# FLEX_EXECUTABLE - path of the flex executable
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# FLEX_VERSION - the version string, like "2.5.31"
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#
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FIND_PROGRAM(FLEX_EXECUTABLE NAMES flex)
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2007-01-07 17:32:15 +00:00
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mark_as_advanced(FLEX_DIR Flex_DIR)
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2007-01-07 17:19:45 +00:00
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#INCLUDE(MacroEnsureVersion)
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IF(FLEX_EXECUTABLE)
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SET(FLEX_FOUND TRUE)
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EXECUTE_PROCESS(COMMAND ${FLEX_EXECUTABLE} --version
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OUTPUT_VARIABLE _FLEX_VERSION
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)
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string (REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" FLEX_VERSION "${_FLEX_VERSION}")
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ENDIF(FLEX_EXECUTABLE)
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IF(FLEX_FOUND)
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IF(NOT Flex_FIND_QUIETLY)
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MESSAGE(STATUS "Found Flex: ${FLEX_EXECUTABLE}")
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ENDIF(NOT Flex_FIND_QUIETLY)
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ELSE(FLEX_FOUND)
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IF(Flex_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "Could not find Flex")
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ENDIF(Flex_FIND_REQUIRED)
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ENDIF(FLEX_FOUND)
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