Netlink: Add workaround for older kernel headers

diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c
index 71b290fd0811abcdce3a4f540fcd429d79e145e5..27b1a6178d77d3340fbfac041d427e5e3203556b 100644 (file)
--- a/sysdep/linux/netlink.c
+++ b/sysdep/linux/netlink.c
@@ -69,6 +69,10 @@
 #define RTA_ENCAP  22
 #endif
 
+#ifndef NETLINK_GET_STRICT_CHK
+#define NETLINK_GET_STRICT_CHK 12
+#endif
+
 #define krt_ipv4(p) ((p)->af == AF_INET)
 #define krt_ecmp6(p) ((p)->af == AF_INET6)