netkittelnet: warn that legal-info is not implemented

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/netkittelnet/netkittelnet.mk

@@ -48,6 +48,9 @@ $(TARGET_DIR)/$(NETKITTELNET_TARGET_BINARY): $(NETKITTELNET_DIR)/$(NETKITTELNET_
 	#rm -rf $(TARGET_DIR)/share/locale $(TARGET_DIR)/usr/info \
 	# $(TARGET_DIR)/usr/man $(TARGET_DIR)/usr/share/doc
 
+netkittelnet-legal-info:
+	@$(call legal-warning-pkg,netkittelnet,legal-info not yet implemented)
+
 netkittelnet: netkitbase $(TARGET_DIR)/$(NETKITTELNET_TARGET_BINARY)
 
 netkittelnet-clean: