## arg 1: the new package version## arg 2: the old package version
post_upgrade() {
old=`echo$2| sed 's/-[0-9]*$//'`
new=`echo$1| sed 's/-[0-9]*$//'`if[[$old!=$new]];thenecho"New vislcg3 version."echo"Packages dependent on vislcg3 may require rebuilds!"fi}