if [ ! -d ${tmpdir} ]; then
    error "cannot create temporary directory"
fi

# copy sources to working directory
cd ${tmpdir}
if [ "${sources}" = "${default_sources}" ]; then
    cvs -z3 -d:pserver:anonymous@cvs.mtt.sf.net:/cvsroot/mtt export -D now mttroot/mtt
    cvs -z3 -d:pserver:anonymous@mtt.cvs.sf.net:/cvsroot/mtt export -D now mttroot/mtt
else
    mkdir -p ./mttroot
    cp -a ${sources}/mtt ./mttroot/mtt
    for dir in $(find . -type d -name CVS); do
	rm -r $dir
    done
fi