From e22d5dc07350b81006ca6b9bf5fd7b517e2574ee Mon Sep 17 00:00:00 2001
From: Michael Tokarev <mjt@tls.msk.ru>
Date: Fri, 1 Aug 2014 23:20:24 +0400
Subject: [PATCH] l2tpv3 (configure): it is linux-specific

Some non-linux systems, for example a system with
FreeBSD kernel and glibc, may declare struct mmsghdr
(in glibc) but may not have linux-specific header
file linux/ip.h.  The actual implementation in qemu
includes this linux-specific header file unconditionally,
so compilation fails if it is not present.  Include
this header in the configure test too.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit bff6cb72961f1bd2c766efe85ff5850fd8d7e77d)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index f7685b565cf..f49e61888e3 100755
--- a/configure
+++ b/configure
@@ -1723,6 +1723,7 @@ fi
 
 cat > $TMPC <<EOF
 #include <sys/socket.h>
+#include <linux/ip.h>
 int main(void) { return sizeof(struct mmsghdr); }
 EOF
 if compile_prog "" "" ; then
-- 
2.39.5