From 1de11efadd0083469f26c8782be3d55073829767 Mon Sep 17 00:00:00 2001
From: Christoph Baechler <cbaechler@gmail.com>
Date: Mon, 6 Nov 2023 10:50:33 +0100
Subject: [PATCH] dns: fix init with only ipv4 enabled

---
 src/core/dns.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/core/dns.c b/src/core/dns.c
index bd02aa832..29b3b1733 100644
--- a/src/core/dns.c
+++ b/src/core/dns.c
@@ -325,7 +325,9 @@ dns_init(void)
   /* initialize fallback dns DNS server address */
   ip_addr_t dnsserver;
   FALLBACK_DNS_SERVER_ADDRESS(&dnsserver);
+#if LWIP_IPV4 && LWIP_IPV6
   dnsserver.type = IPADDR_TYPE_V4;
+#endif
   dns_setserver(DNS_FALLBACK_SERVER_INDEX, &dnsserver);
 #endif /* FALLBACK_DNS_SERVER_ADDRESS */