\documentclass{book}
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\begin{document}

\chapter{Environment Variables}

\section*{Wrapper}

All wrapper are called \textit{lct\_*}. They either expect \textit{libcontra} 
at the default path in \textit{/usr/lib/\$HOSTTYPE/libcontra.so} or at the 
location defined by \textit{\$CONTRA\_LIBRARY}. 


\end{document}
