wpkg --no-force-overwrite-dir | --refuse-overwrite-dir ...

The --no-force-overwrite-dir option cancels the effect of the --force-overwrite-dir option wherever it appears on the command line (before or after the --force-overwrite-dir option). It prevents the installation of packages if any file is to overwrite a directory or vice versa.

The --refuse-overwrite-dir option is an exact equivalent.