POSTIN

/bin/sh

/sbin/ldconfig
/usr/bin/dot -c

# if there is no dot after everything else is done, then remove config

POSTUN

/bin/sh

if [ $1 -eq 0 ]; then
        rm -f /usr/lib/graphviz/config || :
fi
/sbin/ldconfig

# run "dot -c" to generate plugin config in /usr/lib/graphviz/config