anchor.diff:      auth_unix_ro = "none"
       auth_unix_rw = "none"
       ${cfg.extraConfig}
  +  '';
  +  qemuConfigFile = pkgs.writeText "qemu.conf" ''
  +    ${cfg.qemuVerbatimConfig}
     '';
   
   in {
  
positive.code:       description = ''
          Extra contents appended to the libvirtd configuration file,
          libvirtd.conf.
        '';
      };
  
  
negative.code:             cp -npd ${pkgs.libvirt}/var/lib/$i /var/lib/$i
          done
  
          # Copy generated qemu config to libvirt directory
          cp -f ${qemuConfigFile} /var/lib/libvirt/qemu.conf
  
          # libvirtd puts the full path of the emulator binary in the machine
          # config file. But this path can unfortunately be garbage collected
          # while still being used by the virtual machine. So update the
  