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scripts/kconfig.pl: backport changes from trunk

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git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@26535 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2011-04-08 18:55:16 +00:00
parent 0d2ab1ea02
commit 6f99ef9c52
1 changed files with 8 additions and 2 deletions
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10
scripts/kconfig.pl
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@ -80,13 +80,15 @@ sub config_add($$$) {
return \%config;
}
sub config_diff($$) {
sub config_diff($$$) {
my $cfg1 = shift;
my $cfg2 = shift;
my $new_only = shift;
my %config;
foreach my $config (keys %$cfg2) {
if (!defined($cfg1->{$config}) or $cfg1->{$config} ne $cfg2->{$config}) {
next if $new_only and !defined($cfg1->{$config}) and $cfg2->{$config} eq '#undef';
$config{$config} = $cfg2->{$config};
}
}
@ -146,7 +148,11 @@ sub parse_expr {
} elsif ($arg eq '>') {
my $arg1 = parse_expr($pos);
my $arg2 = parse_expr($pos);
return config_diff($arg1, $arg2);
return config_diff($arg1, $arg2, 0);
} elsif ($arg eq '>+') {
my $arg1 = parse_expr($pos);
my $arg2 = parse_expr($pos);
return config_diff($arg1, $arg2, 1);
} elsif ($arg eq '-') {
my $arg1 = parse_expr($pos);
my $arg2 = parse_expr($pos);