if (CPACK_GENERATOR MATCHES "DEB")
  set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}_${CPACK_PACKAGE_VERSION}_amd64")
elseif (CPACK_GENERATOR MATCHES "RPM")
  set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}.x86_64")
endif()