Dataword \Arg{tools} means the technology of building temporary system,
used in \texttt{LFS} before version 10.0.

All datawords in configuration can be checked with command \Prog{auserdd}:
\begin{verbatim}
    # first stage
    auserdd lfs,pass1
    # main stage
    auserdd lfs
\end{verbatim}

%%% src_config
String with \Prog{ause} means the block below will be executed, if dataword \Arg{tools}
is present in configuration.

String with \Prog{ause\_notenable} means the given option will not be added,
if \Arg{tools} is present in configuration.
