use strict;
.
.
my $file = 'cfg.cfg';
my %cfg;
my $return = do $file;
unless ($return) {
	die "couldn't parse $file: $@" if $@;
	die "couldn't do $file: $!"    unless defined $return;
	die "couldn't run $file"       unless $return;
}

%cfg =  %{$return};