From 1405b6290fa2143e02dcede90b116d8d663ae669 Mon Sep 17 00:00:00 2001
From: Stefan Weil <sw@weilnetz.de>
Date: Sat, 11 May 2013 21:46:58 +0200
Subject: [PATCH] w32: Fix configure test for -march=i486

The latest version of MinGW needs a test for __sync_val_compare_and_swap
to fix a missing symbol linker error.

Reported-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-id: 1368301619-32097-2-git-send-email-sw@weilnetz.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
 configure | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure b/configure
index 29b5589fa4..5ae7e4a348 100755
--- a/configure
+++ b/configure
@@ -1346,6 +1346,7 @@ static int sfaa(int *ptr)
 int main(void)
 {
   int val = 42;
+  val = __sync_val_compare_and_swap(&val, 0, 1);
   sfaa(&val);
   return val;
 }
-- 
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