MACRO(CONFIGURE_DOXYGEN_FILE DOXYGEN_CONFIG_FILE FILE_NAME_SUFFIX)
    IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE})
        FILE(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/doxy-${FILE_NAME_SUFFIX}.conf)
        FILE(READ ${CMAKE_CURRENT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE} DOXYFILE_CONTENTS)
        STRING(REGEX REPLACE ";" "\\\\;" DOXYFILE_CONTENTS "${DOXYFILE_CONTENTS}")
        STRING(REGEX REPLACE "\n" ";" DOXYFILE_LINES "${DOXYFILE_CONTENTS}")
        LIST(LENGTH DOXYFILE_LINES ROW)
        MATH(EXPR ROW "${ROW} - 1")
        FOREACH(I RANGE ${ROW})
            LIST(GET DOXYFILE_LINES ${I} LINE)
            IF(LINE STRGREATER "")
                STRING(REGEX MATCH "^[a-zA-Z]([^ ])+" DOXY_PARAM ${LINE})
                IF(DEFINED DOXY_${DOXY_PARAM})
                    SET(LINE "${DOXY_PARAM} = ${DOXY_${DOXY_PARAM}}")
                ENDIF(DEFINED DOXY_${DOXY_PARAM})
            ENDIF()
            FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}/doxy-${FILE_NAME_SUFFIX}.conf "${LINE}\n")
        ENDFOREACH()
    ELSE()
        MESSAGE(SEND_ERROR "Doxygen configuration file '${DOXYGEN_CONFIG_FILE}' not found. Documentation will not be generated")
    ENDIF()
ENDMACRO(CONFIGURE_DOXYGEN_FILE)

MACRO(ADD_DOCUMENTATION TARGET DOXYGEN_CONFIG_FILE)
    FIND_PACKAGE(Doxygen)
    IF(DOXYGEN_FOUND)
        CONFIGURE_DOXYGEN_FILE(${DOXYGEN_CONFIG_FILE} ${TARGET})
        ADD_CUSTOM_TARGET(${TARGET} COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/doxy-${TARGET}.conf)
    ELSE(DOXYGEN_FOUND)
        MESSAGE(STATUS "Doxygen not found. Documentation will not be generated")
    ENDIF(DOXYGEN_FOUND)
ENDMACRO(ADD_DOCUMENTATION)