anchor.diff:            --prefix LD_LIBRARY_PATH ":" "${curl}/lib" \
             --prefix LD_LIBRARY_PATH ":" "${systemd}/lib" \
             --prefix LD_LIBRARY_PATH ":" "${libmad}/lib" \
  -          --prefix LD_LIBRARY_PATH ":" "${libvdpau}/lib"
  +          --prefix LD_LIBRARY_PATH ":" "${libvdpau}/lib" \
  +          --prefix LD_LIBRARY_PATH ":" "${libcec}/lib"
         done
       '';
   
  
positive.code:     ++ lib.optional usbSupport libusb
      ++ lib.optional sambaSupport samba
      ++ lib.optional vdpauSupport libvdpau
      ++ lib.optional pulseSupport pulseaudio;
  
      dontUseCmakeConfigure = true;
  
  
negative.code: # TODO: librtmp
  , libvdpau ? null, vdpauSupport ? true
  , pulseaudio ? null, pulseSupport ? true
  , libcec ? null, cecSupport ? true
  }:
  
  assert dbusSupport  -> dbus_libs != null;
  