--- src/liboping.c
+++ src/liboping.c
@@ -375,6 +375,7 @@
 # endif
 #endif
 
+#if defined(HAVE_NETINET_ICMP6_H)
 static pinghost_t *ping_receive_ipv6 (pingobj_t *obj, char *buffer,
 		size_t buffer_len)
 {
@@ -442,6 +443,7 @@
 
 	return (ptr);
 }
+#endif /* HAVE_NETINET_ICMP6_H */
 
 static int ping_receive_one (pingobj_t *obj, const pinghost_t *ph,
 		struct timeval *now)
@@ -575,12 +577,14 @@
 		if (host == NULL)
 			return (-1);
 	}
+#if defined(HAVE_NETINET_ICMP6_H)
 	else if (ph->addrfamily == AF_INET6)
 	{
 		host = ping_receive_ipv6 (obj, payload_buffer, payload_buffer_len);
 		if (host == NULL)
 			return (-1);
 	}
+#endif
 	else
 	{
 		dprintf ("ping_receive_one: Unknown address family %i.\n",
@@ -828,6 +832,7 @@
 	return (0);
 }
 
+#if defined(HAVE_NETINET_ICMP6_H)
 static int ping_send_one_ipv6 (pingobj_t *obj, pinghost_t *ph)
 {
 	struct icmp6_hdr *icmp6;
@@ -872,6 +877,7 @@
 
 	return (0);
 }
+#endif /* HAVE_NETINET_ICMP6_H */
 
 static int ping_send_all (pingobj_t *obj)
 {
@@ -903,6 +909,7 @@
 			dprintf ("timer set for hostname = %s\n", ptr->hostname);
 		}
 
+#if defined(HAVE_NETINET_ICMP6_H)
 		if (ptr->addrfamily == AF_INET6)
 		{	
 			dprintf ("Sending ICMPv6 echo request to `%s'\n", ptr->hostname);
@@ -913,7 +920,9 @@
 				continue;
 			}
 		}
-		else if (ptr->addrfamily == AF_INET)
+		else
+#endif /* HAVE_NETINET_ICMP6_H */
+		if (ptr->addrfamily == AF_INET)
 		{
 			dprintf ("Sending ICMPv4 echo request to `%s'\n", ptr->hostname);
 			if (ping_send_one_ipv4 (obj, ptr) != 0)