ELSEIF(APPLE)
    SET(CMAKE_OTOOL nm)
    IF(CMAKE_OTOOL)
      # Use otool to check if a library is using an external symbol
      EXEC_PROGRAM(${CMAKE_OTOOL} ARGS " ${${MYLIBRARY}} | grep ${SYMBOL}" OUTPUT_VARIABLE OTOOL_SYMBOL)
      IF(NOT OTOOL_SYMBOL MATCHES " U ")
        SET(${SYMBOL_FOUND} TRUE)
      ENDIF(NOT OTOOL_SYMBOL MATCHES " U ")
    ENDIF(CMAKE_OTOOL)
  ELSEIF(UNIX)