#!/usr/bin/perl
#
#	Return RPM variable value
#     

use strict;
my $showrc_output = `rpm --showrc`;
my $findvar;
$findvar = sub {
    my $var = shift;
    if ($showrc_output =~ /^\-\d+\:\s+\Q$var\E\s+(.*)$/m) {
	my $value = $1;
	$value =~ s/\%\{(.*?)\}/&$findvar($1)/eg;
	$value;
    } else {
	print STDERR "Unknown RPM variable: $var\n";
	exit 1;
    }
};

my $val = &$findvar($ARGV[0]);
print "$val\n";
exit 0;