Fixed a build issue without MME option.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5002 818b1a75-f10b-46b9-bf7c-635c3b92a50f

openair2/ENB_APP/enb_config.c

@@ -128,11 +128,15 @@ int enb_config_init(char* lib_config_file_name_pP, Enb_properties_t **enb_proper
           setting_enb = config_setting_get_elem(setting, i);
 
           if(! config_setting_lookup_int(setting_enb, ENB_CONFIG_STRING_ENB_ID, &enb_id)) {
+              /* Calculate a default eNB ID */
+# if defined(ENABLE_USE_MME)
               uint32_t hash;
 
-              /* Calculate a default eNB ID */
               hash = s1ap_generate_eNB_id ();
               enb_id = i + (hash & 0xFFFF8);
+# else
+              enb_id = i;
+# endif
           }
 
           if(  !(       config_setting_lookup_string(setting_enb, ENB_CONFIG_STRING_CELL_TYPE,           &cell_type)