From c08026342782ead8a1be70171046654ece6ed5b9 Mon Sep 17 00:00:00 2001
From: Eric Garver <e@erig.me>
Date: Mon, 22 Jan 2018 14:10:04 -0500
Subject: [PATCH] acinclude: check for IP_CT_UNTRACKED

IP_CT_UNTRACKED is fairly new, but used by the kernel datapath ct_clear
action.

Signed-off-by: Eric Garver <e@erig.me>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
---
 acinclude.m4 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/acinclude.m4 b/acinclude.m4
index 16a57a341b7..c04c2c65bcd 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -793,6 +793,8 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
   OVS_FIND_FIELD_IFELSE([$KSRC/include/linux/netfilter.h], [nf_hook_ops],
                         [list],
                         [OVS_DEFINE([HAVE_LIST_IN_NF_HOOK_OPS])])
+  OVS_GREP_IFELSE([$KSRC/include/uapi/linux/netfilter/nf_conntrack_common.h],
+                  [IP_CT_UNTRACKED])
 
   if cmp -s datapath/linux/kcompat.h.new \
             datapath/linux/kcompat.h >/dev/null 2>&1; then