X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/0a87b5ffbf4b00e4d280aa85b4e4051603027dab..d8af39f3e4177dcf1eaae8148e1578a75936cac0:/scripts/config.pl

diff --git a/scripts/config.pl b/scripts/config.pl
index dcebfe62c..53b8f1102 100755
--- a/scripts/config.pl
+++ b/scripts/config.pl
@@ -23,7 +23,7 @@ sub load_config($) {
 			next;
 		};
 		/^# CONFIG_(.+?) is not set/ and do {
-			$config{$1} = -1;
+			$config{$1} = "#undef";
 			next;
 		};
 		/^#/ and next;
@@ -49,15 +49,17 @@ sub config_and($$) {
 }
 
 
-sub config_add($$) {
+sub config_add($$$) {
 	my $cfg1 = shift;
 	my $cfg2 = shift;
+	my $mod_plus = shift;
 	my %config;
 	
 	for ($cfg1, $cfg2) {
 		my %cfg = %$_;
 		
 		foreach my $config (keys %cfg) {
+			next if $mod_plus and $config{$config} and $config{$config} eq "y";
 			$config{$config} = $cfg{$config};
 		}
 	}
@@ -91,7 +93,7 @@ sub config_sub($$) {
 sub print_cfgline($$) {
 	my $name = shift;
 	my $val = shift;
-	if ($val eq '-1') {
+	if ($val eq '#undef') {
 		print "# CONFIG_$name is not set\n";
 	} else {
 		print "CONFIG_$name=$val\n";
@@ -123,7 +125,11 @@ sub parse_expr($) {
 	} elsif ($arg =~ /^\+/) {
 		my $arg1 = parse_expr($pos);
 		my $arg2 = parse_expr($pos);
-		return config_add($arg1, $arg2);
+		return config_add($arg1, $arg2, 0);
+	} elsif ($arg =~ /^m\+/) {
+		my $arg1 = parse_expr($pos);
+		my $arg2 = parse_expr($pos);
+		return config_add($arg1, $arg2, 1);
 	} elsif ($arg eq '>') {
 		my $arg1 = parse_expr($pos);
 		my $arg2 = parse_expr($pos);