X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=m4%2Fopenvswitch.m4;h=e6d03a6bfb5dd473b7ab4068e9b4a0f30e3839a2;hb=5160ab34f8e97de8985d75d77c029324e4bccdab;hp=077c29b97a8a97935ba36004089177c22970c0a4;hpb=7c9b00732c633ddd35b9d92fb9fa4c4f8e3ce390;p=openvswitch

diff --git a/m4/openvswitch.m4 b/m4/openvswitch.m4
index 077c29b9..e6d03a6b 100644
--- a/m4/openvswitch.m4
+++ b/m4/openvswitch.m4
@@ -1,6 +1,6 @@
 # -*- autoconf -*-
 
-# Copyright (c) 2008, 2009, 2010 Nicira Networks.
+# Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -46,6 +46,25 @@ AC_DEFUN([OVS_CHECK_NDEBUG],
      [ndebug=false])
    AM_CONDITIONAL([NDEBUG], [test x$ndebug = xtrue])])
 
+dnl Checks for struct rtnl_link_stats64.
+dnl
+dnl (OVS checks for this structure in both kernel and userspace headers.  This
+dnl is not redundant, because the kernel and userspace builds have completely
+dnl different include paths.  It is possible for the kernel to have this
+dnl structure but not userspace, and vice versa.)
+AC_DEFUN([OVS_CHECK_RTNL_LINK_STATS64],
+  [AC_REQUIRE([OVS_CHECK_NETLINK])
+   if test $HAVE_NETLINK = yes; then
+     AC_CHECK_MEMBER(
+       [struct rtnl_link_stats64.tx_packets],
+       [AC_DEFINE([HAVE_RTNL_LINK_STATS64], [1],
+                  [Define to 1 if <linux/if_link.h> defines
+                   struct rtnl_link_stats64.])],
+       [], [#include <sys/socket.h>     /* Provides sa_family_t. */
+#include <linux/if_link.h>
+])
+   fi])
+
 dnl Checks for Netlink support.
 AC_DEFUN([OVS_CHECK_NETLINK],
   [AC_CHECK_HEADER([linux/netlink.h],