From 2a2334920166d20bf091e3212ae3970154d5b8c2 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sat, 18 Dec 2010 23:32:30 +0100
Subject: Check old system kernel header files

---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 85073f4..f8b920a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -113,6 +113,12 @@ PKG_CHECK_MODULES([libmnl], [libmnl >= 1])
 
 dnl Checks for header files
 
+dnl Checks for declarations
+AC_CHECK_DECLS([NLA_F_NESTED, NLA_F_NET_BYTEORDER, NLA_TYPE_MASK],,
+		[AC_MSG_ERROR([System kernel header files are older than 2.6.24, use CFLAGS for non-default location])],
+		[#include <sys/socket.h>
+#include <linux/netlink.h>])
+
 dnl Checks for typedefs, structures
 AC_CHECK_TYPES([union nf_inet_addr],,,[#include <linux/types.h>
 #include <netinet/in.h>
-- 
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