From 3d11e595785fcb0728e58d9c0a6d3cd70df8ae53 Mon Sep 17 00:00:00 2001
From: Simon Lelievre <simon@lelievre.me>
Date: Wed, 7 Sep 2016 13:22:58 +0200
Subject: [PATCH] Add backward compatibility for MPTCP_ENABLED (#1) (#807)

---
 src/netutils.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/netutils.h b/src/netutils.h
index e9bc3947..d80bf265 100644
--- a/src/netutils.h
+++ b/src/netutils.h
@@ -52,9 +52,13 @@
 
 #endif
 
-/* Define the flag MPTCP_ENABLED if not defined*/
+/* Backward compatibility for MPTCP_ENABLED between kernel 3 & 4 */
 #ifndef MPTCP_ENABLED
+#ifdef TCP_CC_INFO
 #define MPTCP_ENABLED 42
+#else
+#define MPTCP_ENABLED 26
+#endif
 #endif
 
 /** byte size of ip4 address */