PREUN

/bin/sh

if [ "$1" = "0" ] ; then # last uninstall
 if [ -x /sbin/install-info ]; then
   /sbin/install-info --delete /usr/share/info/gnuplot.info.gz /usr/share/info/dir
 fi
fi

POSTIN

/bin/sh

if [ "$1" = "1" ] ; then  # first install
 if [ -x /sbin/install-info ]; then
   /sbin/install-info /usr/share/info/gnuplot.info.gz /usr/share/info/dir
 fi
fi