Definition of memset is not found if string.h is not included anywhere Signed-off-by: Piyush Shah <piyush@espressif.com>
@@ -39,6 +39,7 @@
#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
#include <stddef.h> /* for size_t */
+#include <string.h> /* for FD_ZERO */
#include "lwip/ip_addr.h"
#include "lwip/err.h"