#!/usr/bin/perl

$r = join '|', map { chop; $l{$_} = 1; quotemeta } `rpm -qa --queryformat "%{NAME}\n"`;
$R = qr/ $r/;
open F, "/etc/urpmi/depslist" or die "can't find depslist\n";
$R && /(\S+)-[^-]+-[^-]+ / && delete $l{$1} foreach <F>;
print "$_\n" foreach keys %l;