--- a/Build.PL	Thu Jun 30 15:19:02 2011 +0200
+++ b/Build.PL	Thu Jun 30 15:19:33 2011 +0200
@@ -38,7 +38,7 @@
         "Net::DNS::SEC"    => "0",
     },
     script_files => [glob "bin/*"],    # avoid .swp files
-    sbin_files => { map { $_ => $_ unless /.(bak|orig)$/ } glob("sbin/*") },
+    sbin_files => { map { /\.(bak|orig)$/ ? () : ( $_ => $_ ) } glob("sbin/*") },
     nagios_files => { 'dnsnagios/check_dnssec' => 'sbin/check_dnssec' },
 );