src/liboping.c: Check if IPPROTO_IPV6 and IPV6_RECVHOPLIMIT are defined.

diff --git a/src/liboping.c b/src/liboping.c
index 88244bb..51071ad 100644 (file)
--- a/src/liboping.c
+++ b/src/liboping.c
@@ -1352,6 +1352,7 @@ int ping_host_add (pingobj_t *obj, const char *host)
                        setsockopt (ph->fd, IPPROTO_IP, IP_RECVTTL,
                                        &opt, sizeof (opt));
                }
+#if defined(IPPROTO_IPV6) && defined(IPV6_RECVHOPLIMIT)
                else if (ph->addrfamily == AF_INET6)
                {
                        int opt = 1;
@@ -1359,6 +1360,7 @@ int ping_host_add (pingobj_t *obj, const char *host)
                        setsockopt (ph->fd, IPPROTO_IPV6, IPV6_RECVHOPLIMIT,
                                        &opt, sizeof (opt));
                }
+#endif
 
                break;
        }