From 2f4a9abf8842de1d629cc74d67f9a804085e6baa Mon Sep 17 00:00:00 2001
From: Grischa Toedt <grischa.toedt@web.de>
Date: Sat, 7 Jul 2012 22:54:42 +0200
Subject: [PATCH] Fix a build error with automake 1.12 or newer.

Since automake 1.12, the warnings in the category 'extra-portability'
are now enabled by '-Wall'. Because of this change, linking libtool
archives requires the new AM_PROG_AR macro.
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index a41caab..efd2c23 100644
--- a/configure.ac
+++ b/configure.ac
@@ -20,6 +20,9 @@ AC_CONFIG_MACRO_DIR([m4])
 # Initialize automake.
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])
 
+# Fix for automake >= 1.12
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+
 # Initialize libtool.
 LT_PREREQ([2.2.0])
 LT_INIT([win32-dll])