Check old system kernel header files

diff --git a/configure.ac b/configure.ac
index 85073f4de3588f958c3db374b78bb67043427440..f8b920a333cf2f3a4d8421c38dafb4a29d10a1e3 100644 (file)
--- 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>