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| -rw-r--r-- | modules/FindFlex.cmake | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/modules/FindFlex.cmake b/modules/FindFlex.cmake new file mode 100644 index 00000000..59831ffd --- /dev/null +++ b/modules/FindFlex.cmake @@ -0,0 +1,32 @@ +# - Try to find Flex +# Once done this will define +# +# FLEX_FOUND - system has Flex +# FLEX_EXECUTABLE - path of the flex executable +# FLEX_VERSION - the version string, like "2.5.31" +# + + +FIND_PROGRAM(FLEX_EXECUTABLE NAMES flex) + +INCLUDE(MacroEnsureVersion) + +IF(FLEX_EXECUTABLE) + SET(FLEX_FOUND TRUE) + + EXECUTE_PROCESS(COMMAND ${FLEX_EXECUTABLE} --version + OUTPUT_VARIABLE _FLEX_VERSION + ) + string (REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" FLEX_VERSION "${_FLEX_VERSION}") +ENDIF(FLEX_EXECUTABLE) + +IF(FLEX_FOUND) + IF(NOT Flex_FIND_QUIETLY) + MESSAGE(STATUS "Found Flex: ${FLEX_EXECUTABLE}") + ENDIF(NOT Flex_FIND_QUIETLY) +ELSE(FLEX_FOUND) + IF(Flex_FIND_REQUIRED) + MESSAGE(FATAL_ERROR "Could not find Flex") + ENDIF(Flex_FIND_REQUIRED) +ENDIF(FLEX_FOUND) + |