added swig dependency
@@ -65,7 +65,10 @@ This note describes how to install {\tt CCL} (Section \ref{sec:install}), its fu
\section{Installation}
\label{sec:install}
\subsection{Dependencies}
-{\tt CCL} requires the GNU Scientific Library {\ttGSL}\footnote{\url{https://www.gnu.org/software/gsl/}}, {\tt GSL-2.1} or higher.
+\begin{itemize}
+\item GNU Scientific Library {\tt GSL}\footnote{\url{https://www.gnu.org/software/gsl/}}, {\tt GSL-2.1} or higher
+\item Simplified Wrapper and Interface Generator {\tt SWIG}\footnote{\url{http://www.swig.org/}}
+\end{itemize}
\subsection{Installation Procedure}
{\tt CCL} can be installed through an {\tt autotools}-generated configuration file. UNIX users should be familiar with the process: navigate to the directory containing the library and type
\begin{verbatim}
