From 439cb93ce98ecc1d6a864d63d35baad9e761bb28 Mon Sep 17 00:00:00 2001
From: Tobias Brunner <tobias@strongswan.org>
Date: Tue, 4 Oct 2011 18:46:51 +0200
Subject: [PATCH] Check for RTA_TABLE in configure.

---
 configure.in                                          | 11 +++++++++++
 .../plugins/kernel_netlink/kernel_netlink_net.c       |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/configure.in b/configure.in
index 1f6529c81..051b609b5 100644
--- a/configure.in
+++ b/configure.in
@@ -459,6 +459,17 @@ AC_TRY_COMPILE(
 	[AC_MSG_RESULT([no])]
 )
 
+AC_MSG_CHECKING([for RTA_TABLE])
+AC_TRY_COMPILE(
+	[#include <sys/socket.h>
+	#include <linux/netlink.h>
+	#include <linux/rtnetlink.h>],
+	[int rta_type = RTA_TABLE;
+	 return rta_type;],
+	[AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_RTA_TABLE])],
+	[AC_MSG_RESULT([no])]
+)
+
 AC_MSG_CHECKING([for gcc atomic operations])
 AC_TRY_RUN(
 [
diff --git a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
index 9d67a6007..219657541 100644
--- a/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libhydra/plugins/kernel_netlink/kernel_netlink_net.c
@@ -933,12 +933,14 @@ static host_t *get_route(private_kernel_netlink_net_t *this, host_t *dest,
 								rta_oif = *(u_int32_t*)RTA_DATA(rta);
 							}
 							break;
+#ifdef HAVE_RTA_TABLE
 						case RTA_TABLE:
 							if (RTA_PAYLOAD(rta) == sizeof(rta_table))
 							{
 								rta_table = *(u_int32_t*)RTA_DATA(rta);
 							}
 							break;
+#endif /* HAVE_RTA_TABLE*/
 					}
 					rta = RTA_NEXT(rta, rtasize);
 				}