From 2536f3bbf0c7d5fc3ef14a21c11e07efea6cf294 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Sun, 31 Jan 1999 00:19:45 +0000
Subject: Autoconfigure detection of whether we have 2.2.

svn path=/trunk/; revision=2358
---
 configure.in | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index 56098371..d637ddd1 100644
--- a/configure.in
+++ b/configure.in
@@ -183,6 +183,17 @@ AC_TRY_LINK([#include <signal.h>
   [AC_DEFINE(SYS_SIGLIST_DECLARED) AC_MSG_RESULT(yes)],
   AC_MSG_RESULT(no))
 
+dnl Figure out whether we're using a 2.2 kernel (assuming this is Linux)
+AC_MSG_CHECKING(OS kernel major version)
+set -- `uname -r | tr '.' ' '`
+release="${1}.${2}"
+AC_MSG_RESULT($release)
+if expr "$release" '>=' '2.2' >/dev/null
+then
+	AC_DEFINE(HAVE_NEWPROCNETDEV)
+	AC_MSG_RESULT("assuming new /proc/dev/net format")
+fi
+
 # Find the right directory to put the root-mode PID file in
 for dir in "/var/run" "/etc"
 do
-- 
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