PREIN

/bin/sh

if [ $1 -gt 1 ]; then
    # Upgrade
    # => deregister extension with old name if it exists
    unopkg remove --shared org.openoffice.legacy.writer2latex.uno.pkg > /dev/null 2>&1 || :
    # => deregister extension with new name if it exists
    unopkg remove --shared org.openoffice.da.writer2latex.oxt > /dev/null 2>&1 || :
fi

PREUN

/bin/sh

if [ $1 -eq 0 ]; then
    # not upgrading => deregister
    unopkg remove --shared org.openoffice.da.writer2latex.oxt || :
fi

POSTIN

/bin/sh

    # register extension
    unopkg add --shared --force --link /usr/share/openoffice.org/extensions/writer2latex.oxt || :

POSTUN

/bin/sh

    # clear disk cache
    unopkg list --shared > /dev/null 2>&1 || :