POSTIN

/bin/sh

if ! grep -q /etc/sgml/sgml-docbook-3.1.cat /etc/sgml/catalog ; then
	/usr/bin/install-catalog --add /etc/sgml/sgml-docbook-3.1.cat /usr/share/sgml/docbook/sgml-dtd-3.1/catalog > /dev/null
fi

POSTUN

/bin/sh

if [ "$1" = "0" ] ; then
	/usr/bin/install-catalog --remove /etc/sgml/sgml-docbook-3.1.cat /usr/share/sgml/docbook/sgml-dtd-3.1/catalog > /dev/null
fi

Triggers

docbook-dtd31-sgml < 1.0-13

/bin/sh

if ! grep -q /etc/sgml/sgml-docbook-3.1.cat /etc/sgml/catalog ; then
	/usr/bin/install-catalog --add /etc/sgml/sgml-docbook-3.1.cat /usr/share/sgml/docbook/sgml-dtd-3.1/catalog > /dev/null
fi