From cb3caf1e61126fd18fa63e2a0e91bf71ab4ac3c9 Mon Sep 17 00:00:00 2001
From: Josh Haberman <jhaberman@gmail.com>
Date: Tue, 17 Feb 2015 18:23:41 -0800
Subject: Integrate changes from Google open-source branch.

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

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index d1fde9d5..b68468e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,7 +54,7 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_LANG([C++])
 ACX_USE_SYSTEM_EXTENSIONS
-AM_PROG_AR
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
 AM_CONDITIONAL(GCC, test "$GCC" = yes)   # let the Makefile know if we're gcc
 
 # test_util.cc takes forever to compile with GCC and optimization turned on.
-- 
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