From 03fdb011dd661315a83998af8af779d8f089e3fe Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Wed, 17 Apr 2013 13:33:26 -0700
Subject: [PATCH] ipnetns: fix build on older systems

Debian Squeeze has out of date <sys/mount.h> without the required flags.
---
 ip/ipnetns.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/ip/ipnetns.c b/ip/ipnetns.c
index b047b97..c9bc20a 100644
--- a/ip/ipnetns.c
+++ b/ip/ipnetns.c
@@ -29,6 +29,20 @@
 #define MNT_DETACH	0x00000002	/* Just detach from the tree */
 #endif /* MNT_DETACH */
 
+/* sys/mount.h may be out too old to have these */
+#ifndef MS_REC
+#define MS_REC		16384
+#endif
+
+#ifndef MS_SLAVE
+#define MS_SLAVE	(1 << 19)
+#endif
+
+#ifndef MS_SHARED
+#define MS_SHARED	(1 << 20)
+#endif
+
+
 #ifndef HAVE_SETNS
 static int setns(int fd, int nstype)
 {
-- 
1.8.2.1