From 3f39e6a95f5a20b41ed8c18e7d1d464c75fac7eb Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Wed, 5 Oct 2011 14:29:01 -0500
Subject: [PATCH] build: check for nl80211.h too

---
 configure.ac | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index ccc816c2b2..ac691c4977 100644
--- a/configure.ac
+++ b/configure.ac
@@ -208,7 +208,7 @@ if ! test x"$ac_distver" = x""; then
   AC_DEFINE_UNQUOTED(NM_DIST_VERSION, "$ac_distver", [Define the distribution version string])
 fi
 
-AC_MSG_CHECKING([Linux Wireless Extensions >= 18])
+AC_MSG_CHECKING([Linux kernel WEXT headers])
 AC_COMPILE_IFELSE(
 	[AC_LANG_PROGRAM(
               [[#ifndef __user
@@ -225,7 +225,25 @@ AC_COMPILE_IFELSE(
         [ac_have_iwevgenie=no])
 AC_MSG_RESULT($ac_have_iwevgenie)
 if test "$ac_have_iwevgenie" = no; then
-	AC_MSG_ERROR(Linux kernel development headers not installed or not functional)
+	AC_MSG_ERROR(Linux kernel development header linux/wireless.h not installed or not functional)
+fi
+
+AC_MSG_CHECKING([Linux kernel nl80211 headers])
+AC_COMPILE_IFELSE(
+	[AC_LANG_PROGRAM(
+              [[#ifndef __user
+                #define __user
+                #endif
+                #include <sys/types.h>
+                #include <linux/types.h>
+                #include <sys/socket.h>
+                #include <linux/nl80211.h>]],
+              [[int a = NL80211_RATE_INFO_BITRATE;]])],
+        [ac_have_nl80211=yes],
+        [ac_have_nl80211=no])
+AC_MSG_RESULT($ac_have_nl80211)
+if test "$ac_have_nl80211" = no; then
+	AC_MSG_ERROR(Linux kernel development header linux/nl80211.h not installed or not functional)
 fi
 
 dnl