commit 1405b6290fa2143e02dcede90b116d8d663ae669
author Stefan Weil <sw@weilnetz.de> Sat May 11 21:46:58 2013 +0200
committer Anthony Liguori <aliguori@us.ibm.com> Wed May 15 08:49:28 2013 -0500
tree f257d4290f7caaa279d990a7b2bdf03c203c66e2
parent 2d16c8e9885d4344a264c68feae28ae1e5f1c993

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

diff --git a/configure b/configure
index 29b5589..5ae7e4a 100755
--- a/configure
+++ b/configure
@@ -1346,6 +1346,7 @@
 int main(void)
 {
   int val = 42;
+  val = __sync_val_compare_and_swap(&val, 0, 1);
   sfaa(&val);
   return val;
 }