execute_process(COMMAND chmod +x
                        ${CMAKE_CURRENT_LIST_DIR}/util/makeself/makeself.sh)
execute_process(
  COMMAND
    ${CMAKE_CURRENT_LIST_DIR}/util/makeself/makeself.sh --header
    ${CMAKE_CURRENT_LIST_DIR}/util/makeself/makeself-header.sh --help-header
    ./help.info --gzip --complevel 4 --nomd5 --sha256 ./
    ${CPACK_PACKAGE_FILE_NAME} "version:1.0" ./install.sh
  WORKING_DIRECTORY ${CPACK_TEMPORARY_DIRECTORY}
  RESULT_VARIABLE EXEC_RESULT
  ERROR_VARIABLE EXEC_ERROR)
if(NOT "${EXEC_RESULT}x" STREQUAL "0x")
  message(FATAL_ERROR "CPack Command error: ${EXEC_RESULT}\n${EXEC_ERROR}")
endif()
execute_process(
  COMMAND cp ${CPACK_EXTERNAL_BUILT_PACKAGES} ${CPACK_PACKAGE_DIRECTORY}/
  COMMAND echo
          "Copy ${CPACK_EXTERNAL_BUILT_PACKAGES} to ${CPACK_PACKAGE_DIRECTORY}/"
  WORKING_DIRECTORY ${CPACK_TEMPORARY_DIRECTORY})