From 0904c7b73d3f86c013ec085e81ddc52a14a07011 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Fri, 16 Mar 2012 10:39:39 -0700
Subject: [PATCH] configure: fix warnings

Finally!

Signed-off-by: Sage Weil <sage@newdream.net>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 5e9f70fcb59..30cd7b95112 100644
--- a/configure.ac
+++ b/configure.ac
@@ -58,7 +58,7 @@ AC_DEFUN([AC_CHECK_CC_FLAG],
 	my_cflags_save="$CFLAGS"
 	CFLAGS="$my_cflags_save $1"
 	AC_MSG_CHECKING([whether $CC accepts $1])
-	AC_COMPILE_IFELSE(AC_LANG_PROGRAM(),
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ ]])],
 			  [AC_MSG_RESULT([yes]); AC_SUBST([$2], ["$1"])],
 			  [AC_MSG_RESULT([no])]
 			 )