exact same declaration for random_url[]
see
@@ -37,7 +37,7 @@ char model_description[] = ROOTDEV_MODELDESCRIPTION;
char model_url[] = ROOTDEV_MODELURL;
#endif /* ENABLE_MANUFACTURER_INFO_CONFIGURATION */
#ifdef RANDOMIZE_URLS
-char random_url[] = "RANDOM";
+char random_url[RANDOM_URL_MAX_LEN] = "RANDOM";
#endif /* RANDOMIZE_URLS */
unsigned int upnp_configid = 666;
