From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1NZmGj-0002Uy-7H
	for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:19:49 -0500
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1NZmGe-0002Na-IA
	for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:19:48 -0500
Received: from [199.232.76.173] (port=60021 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1NZmGd-0002NK-RV
	for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:19:43 -0500
Received: from mx1.redhat.com ([209.132.183.28]:35591)
	by monty-python.gnu.org with esmtp (Exim 4.60)
	(envelope-from <mst@redhat.com>) id 1NZmGd-00007B-A0
	for qemu-devel@nongnu.org; Tue, 26 Jan 2010 09:19:43 -0500
Date: Tue, 26 Jan 2010 16:16:32 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
Message-ID: <20100126141632.GA20173@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Subject: [Qemu-devel] [PATCH] configure: verify stdio.h
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: weil@mail.berlios.de, hpoussin@reactos.org, lcapitulino@redhat.com, Anthony Liguori <anthony@codemonkey.ws>, qemu-devel@nongnu.org, berrange@redhat.com

Verify that stdio.h supports %ll and %z
Some migw variants don't unless requested explicitly (see
http://www.mail-archive.com/mingw-w64-public@lists.sourceforge.net/msg00417.html)
), detect them early.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 configure |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index 5631bbb..7bbe4bc 100755
--- a/configure
+++ b/configure
@@ -123,6 +123,31 @@ else
     exit 1
 fi
 
+# Check that stdio.h compiler is sane: some
+# mingw variants do not support %z %l that we rely on
+cat > $TMPC <<EOF
+#include <stddef.h>
+#include <stdio.h>
+size_t z = 1;
+long long ll = 2;
+int main(void) {
+  printf("z=%zd;ll=%lld;\n", z, ll);
+  return 0;
+}
+EOF
+
+if compile_prog && ($TMPE | grep "z=1;ll=2;" > /dev/null); then
+  : C compiler works ok
+else
+    echo "ERROR: \"$cc\" does not have a working stdio.h"
+    exit 1
+fi
+
+cat > $TMPC << EOF
+#include <unistd.h>
+int main(void) { return fdatasync(0); }
+EOF
+
 check_define() {
 cat > $TMPC <<EOF
 #if !defined($1)
-- 
1.6.6.144.g5c3af