test for recursive required

tests/test_whatdepends.sh

+#!/bin/sh
+
+. `dirname $0`/../share/eterbuild/functions/common
+
+get_wd()
+{
+	apt-cache whatdepends $1 | grep "^  [a-zA-Z]" | sed -e "s|^ *||g"
+}
+list_wd()
+{
+	for i in $@ ; do
+		#echo i=$i
+		get_wd `echo $i | sed "s|-[0-9].*||g"`
+	done
+}
+
+	USEDBY=$(get_wd libmpfr)
+	echo "Required by:"
+	print_list $USEDBY
+	echo "Second required by:"
+	print_list `list_wd $USEDBY`