format_function_t format_mpls_unicast_label;
format_function_t format_mpls_encap_index;
-vlib_node_registration_t mpls_input_node;
-vlib_node_registration_t mpls_policy_encap_node;
+extern vlib_node_registration_t mpls_input_node;
+extern vlib_node_registration_t mpls_policy_encap_node;
vnet_device_class_t mpls_gre_device_class;