Index: examples/tiny.c
--- examples/tiny.c.orig
+++ examples/tiny.c
@@ -88,6 +88,9 @@ get_session(const char *group) {
   memset(&hints, 0, sizeof(struct addrinfo));
   hints.ai_family = AF_UNSPEC;    /* Allow IPv4 or IPv6 */
   hints.ai_socktype = SOCK_DGRAM; /* Coap uses UDP */
+#ifndef AI_ALL
+#define AI_ALL 0
+#endif
   hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST | AI_NUMERICSERV | AI_ALL;
 
   s = getaddrinfo(group, NULL, &hints, &result);