#!/bin/bash

sort targets/$1/_jhbuild/packagedb.xml > /tmp/packagedb.xml.a
sort targets/$2/_jhbuild/packagedb.xml > /tmp/packagedb.xml.b

COUNT=`diff -u  /tmp/packagedb.xml.a /tmp/packagedb.xml.b | grep "^-" --count --max-count 2`

rm /tmp/packagedb.xml.{a,b}

exit $((COUNT - 1))