From 87994d3bb45e001dc2bdbd223b0a23d828dec876 Mon Sep 17 00:00:00 2001
From: Our Air Quality <info@ourairquality.org>
Date: Sat, 19 Aug 2017 14:52:56 +1000
Subject: [PATCH] http_get example: fix compilation with ipv6 disabled.

---
 examples/http_get/http_get.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/examples/http_get/http_get.c b/examples/http_get/http_get.c
index f59aa8e..766dd81 100644
--- a/examples/http_get/http_get.c
+++ b/examples/http_get/http_get.c
@@ -48,6 +48,7 @@ void http_get_task(void *pvParameters)
             continue;
         }
 
+#if LWIP_IPV6
         {
             struct netif *netif = sdk_system_get_netif(0);
             int i;
@@ -57,14 +58,17 @@ void http_get_task(void *pvParameters)
                     printf("  ip6 addr %d = %s\n", i, ip6addr_ntoa(netif_ip6_addr(netif, i)));
             }
         }
+#endif
 
         struct sockaddr *sa = res->ai_addr;
         if (sa->sa_family == AF_INET) {
             printf("DNS lookup succeeded. IP=%s\r\n", inet_ntoa(((struct sockaddr_in *)sa)->sin_addr));
         }
+#if LWIP_IPV6
         if (sa->sa_family == AF_INET6) {
             printf("DNS lookup succeeded. IP=%s\r\n", inet6_ntoa(((struct sockaddr_in6 *)sa)->sin6_addr));
         }
+#endif
 
         int s = socket(res->ai_family, res->ai_socktype, 0);
         if(s < 0) {