if [ -e "${INSTALL_ROOT}/etc/sgml/dsssl-docbook-stylesheets.cat" ]; then
   install-catalog --remove ${INSTALL_ROOT}/etc/sgml/dsssl-docbook-stylesheets.cat \
     /usr/share/sgml/docbook/dsssl-stylesheets/${VERSION}/catalog                   &&
   install-catalog --remove ${INSTALL_ROOT}/etc/sgml/sgml-docbook.cat \
     /etc/sgml/dsssl-docbook-stylesheets.cat
fi 
