From 25b0e0e8ab4276d8051fb621912d47cb39fd7d21 Mon Sep 17 00:00:00 2001
From: Keith Winstein <keithw@mit.edu>
Date: Mon, 16 Apr 2012 00:28:48 -0400
Subject: [PATCH] Make new pipe2() test work properly when pipe2() undefined
 (e.g. on OS X).

---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index be6daf2..98f9b2b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -244,7 +244,7 @@ if test -z "$poll_LIBS"; then
 fi
 
 AC_MSG_CHECKING([whether pipe2(..., O_CLOEXEC) is supported])
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
+AC_LINK_IFELSE([AC_LANG_PROGRAM([[#define _GNU_SOURCE
 #include <unistd.h>
 #include <fcntl.h>
 int pipefd[2];