--- bind-9.9.5b1/configure.in.orig	2013-12-12 06:59:59.000000000 +0100
+++ bind-9.9.5b1/configure.in	2014-03-25 09:33:41.000000000 +0100
@@ -352,7 +352,7 @@ case "$host" in
 	# as it breaks how the two halves (Basic and Advanced) of the IPv6
 	# Socket API were designed to be used but we have to live with it.
 	# Define _GNU_SOURCE to pull in the IPv6 Advanced Socket API.
-	*-linux* | *-kfreebsd*-gnu)
+	*-linux* | *-kfreebsd*-gnu | *-gnu*)
 		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
 		CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 		;;
--- bind-9.9.5b1/configure.orig	2013-12-12 06:59:59.000000000 +0100
+++ bind-9.9.5b1/configure	2014-03-25 09:33:41.000000000 +0100
@@ -352,7 +352,7 @@ case "$host" in
 	# as it breaks how the two halves (Basic and Advanced) of the IPv6
 	# Socket API were designed to be used but we have to live with it.
 	# Define _GNU_SOURCE to pull in the IPv6 Advanced Socket API.
-	*-linux* | *-kfreebsd*-gnu)
+	*-linux* | *-kfreebsd*-gnu | *-gnu*)
 		STD_CDEFINES="$STD_CDEFINES -D_GNU_SOURCE"
 		CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 		;;
--- bind-9.9.5b1/lib/isc/unix/net.c.orig	2013-12-12 06:59:59.000000000 +0100
+++ bind-9.9.5b1/lib/isc/unix/net.c	2014-03-25 10:21:08.000000000 +0100
@@ -130,6 +130,9 @@ try_proto(int domain) {
 #ifdef EAFNOSUPPORT
 		case EAFNOSUPPORT:
 #endif
+#ifdef EPFNOSUPPORT
+		case EPFNOSUPPORT:
+#endif
 #ifdef EPROTONOSUPPORT
 		case EPROTONOSUPPORT:
 #endif