+sub set_thumb($) {
+ my ($app_dir) = @_;
+
+ return unless ($app_dir =~ m@\.saver/?$@s);
+
+ my @cmd = ("$exec_dir/update-thumbnail.pl", $thumbdir, $app_dir);
+ push @cmd, "-" . ("v" x $verbose) if ($verbose);
+ print STDERR "$progname: exec: " . join(' ', @cmd) . "\n"
+ if ($verbose > 1);
+ system (@cmd);
+ my $exit = $? >> 8;
+ exit ($exit) if $exit;
+}
+
+