custom chains were never reached on DROP/REJECT policy, fixes #4004 #4029

[openwrt.git] / scripts / metadata.pl

diff --git a/scripts/metadata.pl b/scripts/metadata.pl
index d920f59..bee3020 100755 (executable)
--- a/scripts/metadata.pl
+++ b/scripts/metadata.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 use FindBin;
 use lib "$FindBin::Bin";
 use strict;
@@ -472,7 +472,7 @@ sub print_package_config_category($) {
 
 sub gen_package_config() {
        parse_package_metadata($ARGV[0]) or exit 1;
-       print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n";
+       print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n" if %preconfig;
        foreach my $preconfig (keys %preconfig) {
                foreach my $cfg (keys %{$preconfig{$preconfig}}) {
                        my $conf = $preconfig{$preconfig}->{$cfg}->{id};