: mvs.390 ldd
case $# in
1)	header=0 ;;
*)	header=1 ;;
esac
for file
do	case $header in
	1)	echo "$file:"
		header=2
		;;
	2)	echo
		echo "$file:"
		;;
	esac
	strings $file |
	sed -e '/\<[[:lower:]][[:alnum:]]*\.dll\>/!d' -e 's/^/	/' |
	sort -u
done