[ -f debian/patches/00patch-opts ] && . debian/patches/00patch-opts
patch_opts="${patch_opts:--f --no-backup-if-mismatch}"

if [ $# -ne 1 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
       -patch) patch $patch_opts -p1 < $0;;
       -unpatch) patch $patch_opts -p1 -R < $0;;
        *)      
                echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
                exit 1;;
esac

exit 0