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Viewing changes to cmake_modules/CMakeUseFlex.cmake

  • Committer: Rodolfo Ochoa
  • Date: 2012-09-08 16:36:08 UTC
  • mfrom: (10937.1.51 zorba)
  • Revision ID: rodolfo.ochoa@gmail.com-20120908163608-mz55ayoa8lznh7i3
Merge from trunk

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Lines of Context:
cmake_modules/CMakeUseFlex.cmake
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    # Extract major and minor versions
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    STRING (REGEX REPLACE "[^0-9]*([0-9]+)..*" "\\1" FLEX_MAJOR_VERSION_TMP ${FLEX_VERSION})
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    STRING (REGEX REPLACE "[^0-9]*[0-9]+\\.([0-9]+).*" "\\1" FLEX_MINOR_VERSION_TMP ${FLEX_VERSION})
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        STRING (REGEX REPLACE "[^0-9]*[0-9]+\\.[0-9]+\\.([0-9]+[a-z]*).*" "\\1" FLEX_REVISION_VERSION_TMP ${FLEX_VERSION})      
 
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    STRING (REGEX REPLACE "[^0-9]*[0-9]+\\.[0-9]+\\.([0-9]+[a-z]*).*" "\\1" FLEX_REVISION_VERSION_TMP ${FLEX_VERSION})
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    MESSAGE(STATUS "Found flex -- ${FLEX_EXECUTABLE}, version: " ${FLEX_MAJOR_VERSION_TMP} "." ${FLEX_MINOR_VERSION_TMP} "." ${FLEX_REVISION_VERSION_TMP})
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    SET (FLEX_MAJOR_VERSION ${FLEX_MAJOR_VERSION_TMP} CACHE STRING "The flex major version" FORCE)
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    SET (FLEX_MINOR_VERSION ${FLEX_MINOR_VERSION_TMP} CACHE STRING "The flex minor version" FORCE)
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        SET (FLEX_REVISION_VERSION ${FLEX_REVISION_VERSION_TMP} CACHE STRING "The flex revision version" FORCE)
 
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    SET (FLEX_REVISION_VERSION ${FLEX_REVISION_VERSION_TMP} CACHE STRING "The flex revision version" FORCE)
 
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    # Find the FlexLexer.h header. Try our best to find the one associated
 
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    # with the flex binary we're actually using.
 
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    GET_FILENAME_COMPONENT(_flex_path "${FLEX_EXECUTABLE}" PATH)
 
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    GET_FILENAME_COMPONENT(_flex_hint "${_flex_path}/../include" ABSOLUTE)
 
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    FIND_PATH(FLEX_INCLUDE_DIR FlexLexer.h HINTS "${_flex_hint}")
 
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  ELSE (FLEX_EXECUTABLE)
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    SET (FLEX_MAJOR_VERSION "0")
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    SET (FLEX_MINOR_VERSION "0")
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          SET (FLEX_REVISION_VERSION "0")
 
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    SET (FLEX_REVISION_VERSION "0")
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  ENDIF(FLEX_EXECUTABLE)
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  SET (FLEX_VERSION_FULL ${FLEX_MAJOR_VERSION}.${FLEX_MINOR_VERSION}.${FLEX_REVISION_VERSION} CACHE STRING "The Flex version" FORCE)
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ENDIF(NOT FLEX_EXECUTABLE)
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    ELSE(FLEX_PREFIX_OUTPUTS)
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      SET(PREFIX "yy")
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    ENDIF(FLEX_PREFIX_OUTPUTS)
 
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    # If we regenerate the scanner, be sure to copy the corresponding
 
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    # FlexLexer.h as well. Put it in the top-level src/ directory since
 
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    # that path is on the include-directories list; also, that way
 
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    # multiple flex'd files will all share the include file.
 
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    SET(FLEXLEXERH "${CMAKE_CURRENT_BINARY_DIR}/FlexLexer.h")
 
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    ADD_CUSTOM_COMMAND(
 
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      OUTPUT "${FLEXLEXERH}"
 
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      COMMAND "${CMAKE_COMMAND}"
 
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      ARGS -E copy_if_different
 
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         "${FLEX_INCLUDE_DIR}/FlexLexer.h"
 
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         "${FLEXLEXERH}")
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    SET(OUTFILE "${CMAKE_CURRENT_BINARY_DIR}/${PATH}/${PREFIX}.cpp")
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    ADD_CUSTOM_COMMAND(
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      OUTPUT "${OUTFILE}"
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      COMMAND "${FLEX_EXECUTABLE}"
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      ARGS -t 
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          "--debug"
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      "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
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      > ${OUTFILE}
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      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}")
 
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      ARGS -t --debug "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
 
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      # flex's --outfile doesn't seem to work right, so redirect stdout
 
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          > "${OUTFILE}"
 
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      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
 
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         "${FLEXLEXERH}")
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    SET_SOURCE_FILES_PROPERTIES("${OUTFILE}" PROPERTIES GENERATED TRUE)
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  ENDMACRO(FLEX_FILE)
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ENDIF(FLEX_EXECUTABLE)