+sub _tmp_cfg { # for lei -c <name>=<value> ...
+ my ($self) = @_;
+ my $cfg = _lei_cfg($self, 1);
+ require File::Temp;
+ my $ft = File::Temp->new(TEMPLATE => 'lei_cfg-XXXX', TMPDIR => 1);
+ my $tmp = { '-f' => $ft->filename, -tmp => $ft };
+ $ft->autoflush(1);
+ print $ft <<EOM or return fail($self, "$tmp->{-f}: $!");
+[include]
+ path = $cfg->{-f}
+EOM
+ $tmp = $self->{cfg} = bless { %$cfg, %$tmp }, ref($cfg);
+ for (@{$self->{opt}->{c}}) {
+ /\A([^=\.]+\.[^=]+)(?:=(.*))?\z/ or return fail($self, <<EOM);
+`-c $_' is not of the form -c <name>=<value>'
+EOM
+ my $name = $1;
+ my $value = $2 // 1;
+ _config($self, '--add', $name, $value);
+ if (defined(my $v = $tmp->{$name})) {
+ if (ref($v) eq 'ARRAY') {
+ push @$v, $value;
+ } else {
+ $tmp->{$name} = [ $v, $value ];
+ }
+ } else {
+ $tmp->{$name} = $value;
+ }
+ }
+}
+