[Qemu-devel] [PATCH 25/43] configure: avoid compiler warning in pipe2 detection

[Michael Roth]

From: Bruce Rogers <address@hidden>

When building qemu-kvm for openSUSE:Factory, I am getting a
warning in the pipe2 detection performed by configure, which
prevents using --enable-werror.

Change detection code to use return value of pipe2.

Signed-off-by: Bruce Rogers <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Signed-off-by: Blue Swirl <address@hidden>
(cherry picked from commit 9bca81624ef9299b9a06013fd29cd6899079aab4)

Signed-off-by: Michael Roth <address@hidden>
---
 configure |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/configure b/configure
index 199a89b..bc95158 100755
--- a/configure
+++ b/configure
@@ -2389,8 +2389,7 @@ cat > $TMPC << EOF
 int main(void)
 {
     int pipefd[2];
-    pipe2(pipefd, O_CLOEXEC);
-    return 0;
+    return pipe2(pipefd, O_CLOEXEC);
 }
 EOF
 if compile_prog "" "" ; then
-- 
1.7.9.5