dpkg/debian/dpkg.prerm

#!/bin/sh -e
# This script can be called in the following ways:
#
# Before the package is removed:
#	<prerm> remove
#
# Before an upgrade:
#	<old-prerm> upgrade <new-version>
# if that fails:
#	<new-prerm> failed-upgrade <old-version>
#
#
# Before package is deconfigured while dependency is replaced due to conflict:
#	<prerm> deconfigure in-favour <new-package> <version>
#		removing <old-package> <version>
#
# Before the package is replaced due to conflict:
#	<prerm> remove in-favour <new-package> <version>


case "$1" in
    remove|upgrade)
	;;

    failed-upgrade|deconfigure)
	;;

    *)
	echo "$0 called with unknown argument \`$1'" 1>&2
	exit 1
	;;
esac

#DEBHELPER#
exit 0