To finish the install of mod_auth_pgsql, you need
to enable the module using the following command

  /usr/local/sbin/mod_auth_pgsql-enable

You should also read
  /usr/local/share/doc/mod_auth_pgsql/mod_auth_pgsql.html

If you already have Apache running on your machine,
you should not use "apachectl restart" - instead,
you should fully stop and then restart the server.
