\begin{table}
\begin{center}
\begin{tabular}{llp{3.3in}}
{\bf Variable} & {\bf Command line option} & {\bf Description} \\
% --------------------------------------
{\tt CC}
&
{\tt --with-cc={\em cc}}
&
Use {\em CC} as the C compiler. \\
% --------------------------------------
{\tt CFLAGS}
&
{\em none}
&
The command line flags to use with the C compiler.
Note: Do not set this variable unless you know what you are doing!
It overrides C compiler flags that are set by \configure to correspond
to libflame feature options. \\
% --------------------------------------
{\tt EXTRA\_CFLAGS}
&
{\tt --with-extra-cflags={\em flags}}
&
Use {\em flags} in addition to the C compiler flags that are set
internally by \configurens.
Most users that need extra flags passed in to the C compiler will
want to set {\tt EXTRA\_CFLAGS} instead of {\tt CFLAGS}. \\
% --------------------------------------
{\tt AR}
&
{\tt --with-ar={\em ar}}
&
Use {\em AR} to create and fill static library archives. \\
% --------------------------------------
{\tt RANLIB}
&
{\tt --with-ranlib={\em ranlib}}
&
Use {\em RANLIB} to generate the index to the static library archive.
Note: In modern environments, the functionality of \ranlib has been
superceded by \arns; GNU \ranlib is equivalent to running {\tt ar -s}.  \\
% --------------------------------------
{\tt FIND}
&
{\em none}
&
The {\tt find} utility is needed by the \clean targets defined in the \makefilens. \\
% --------------------------------------
{\tt XARGS}
&
{\em none}
&
\xargsns, like \find, is needed by the \clean targets defined in the \makefilens. \\
% --------------------------------------
% --------------------------------------
\end{tabular}
\end{center}
\caption{
A list of the environment variables supported by \configurens.
Those environment variables which have corresponding command line options
are listed with entries in the middle column.
Note: Environment variables {\em always} override their corresponding
command line option, if one exists, and provided that it is passed in at
configure-time.
}
\label{fig:tool-env-vars}
\end{table}
