$self->externals_each(\&prep_ext, $lxs, $ex);
$opt->{remote} //= !($lxs->locals - $opt->{'local'});
$lxs->{locals} = \@ilocals if !$opt->{'local'};
$self->externals_each(\&prep_ext, $lxs, $ex);
$opt->{remote} //= !($lxs->locals - $opt->{'local'});
$lxs->{locals} = \@ilocals if !$opt->{'local'};