33 lines
804 B
CMake
33 lines
804 B
CMake
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# - Try to find Bison
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# Once done this will define
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#
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# BISON_FOUND - system has Bison
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# BISON_EXECUTABLE - path of the bison executable
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# BISON_VERSION - the version string, like "2.5.31"
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#
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FIND_PROGRAM(BISON_EXECUTABLE NAMES bison)
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#INCLUDE(MacroEnsureVersion)
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IF(BISON_EXECUTABLE)
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SET(BISON_FOUND TRUE)
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EXECUTE_PROCESS(COMMAND ${BISON_EXECUTABLE} --version
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OUTPUT_VARIABLE _BISON_VERSION
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)
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string (REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" BISON_VERSION "${_bison_VERSION}")
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ENDIF(BISON_EXECUTABLE)
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IF(BISON_FOUND)
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IF(NOT Bison_FIND_QUIETLY)
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MESSAGE(STATUS "Found Bison: ${BISON_EXECUTABLE}")
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ENDIF(NOT Bison_FIND_QUIETLY)
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ELSE(BISON_FOUND)
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IF(Bison_FIND_REQUIRED)
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MESSAGE(FATAL_ERROR "Could not find Bison")
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ENDIF(Bison_FIND_REQUIRED)
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ENDIF(BISON_FOUND)
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