configure: avoid compiler warning in pipe2 detection
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 <brogers@suse.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/configure b/configure
index 34ba9c7..37f712d 100755
--- a/configure
+++ b/configure
@@ -2399,8 +2399,7 @@
int main(void)
{
int pipefd[2];
- pipe2(pipefd, O_CLOEXEC);
- return 0;
+ return pipe2(pipefd, O_CLOEXEC);
}
EOF
if compile_prog "" "" ; then
