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-rw-r--r--network_io/unix/multicast.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/network_io/unix/multicast.c b/network_io/unix/multicast.c
index 8667a1bb3..6ae962902 100644
--- a/network_io/unix/multicast.c
+++ b/network_io/unix/multicast.c
@@ -38,11 +38,13 @@ static void fill_mip_v4(struct ip_mreq *mip, apr_sockaddr_t *mcast,
}
}
-#if APR_HAVE_IPV6
+/* This function is only interested in AF_INET6 sockets, so a noop
+ * "return 0" implementation for the !APR_HAVE_IPV6 build is
+ * sufficient. */
static unsigned int find_if_index(const apr_sockaddr_t *iface)
{
unsigned int index = 0;
-#ifdef HAVE_GETIFADDRS
+#if defined(HAVE_GETIFADDRS) && APR_HAVE_IPV6
struct ifaddrs *ifp, *ifs;
/**
@@ -73,6 +75,7 @@ static unsigned int find_if_index(const apr_sockaddr_t *iface)
return index;
}
+#if APR_HAVE_IPV6
static void fill_mip_v6(struct ipv6_mreq *mip, const apr_sockaddr_t *mcast,
const apr_sockaddr_t *iface)
{