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From: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Date: Mon, 19 Dec 2011 11:12:37 +0000
Message-Id: <1324293158-25433-17-git-send-email-stefanha@linux.vnet.ibm.com>
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References: <1324293158-25433-1-git-send-email-stefanha@linux.vnet.ibm.com>
Subject: [Qemu-devel] [PATCH 16/17] configure: Fix compiler warnings in
	config.log (statement without effect)
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To: qemu-devel@nongnu.org
Cc: Stefan Weil <sw@weilnetz.de>, Anthony Liguori <aliguori@us.ibm.com>, Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>

From: Stefan Weil <sw@weilnetz.de>

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
---
 configure |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/configure b/configure
index bd6f10f..36ee849 100755
--- a/configure
+++ b/configure
@@ -2074,7 +2074,7 @@ cat > $TMPC <<EOF
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <unistd.h>
-int main(void) { preadv; }
+int main(void) { return preadv == preadv; }
 EOF
 preadv=no
 if compile_prog "" "" ; then
@@ -2107,7 +2107,7 @@ if test "$opengl" != "no" ; then
 #include <X11/Xlib.h>
 #include <GL/gl.h>
 #include <GL/glx.h>
-int main(void) { GL_VERSION; return 0; }
+int main(void) { return GL_VERSION != 0; }
 EOF
   if compile_prog "" "-lGL" ; then
     opengl=yes
@@ -2369,8 +2369,7 @@ int main(void)
      * warning but not an error, and will proceed to fail the
      * qemu compile where we compile with -Werror.)
      */
-    epoll_create1;
-    return 0;
+    return epoll_create1 == epoll_create1;
 }
 EOF
 if compile_prog "$ARCH_CFLAGS" "" ; then
-- 
1.7.7.3