$NetBSD: patch-configure.ac,v 1.2 2013/04/14 00:30:02 cheusov Exp $

automake-1.13 compat.

--- configure.ac.orig	2012-10-04 13:30:51.000000000 +0000
+++ configure.ac
@@ -86,7 +86,7 @@ AC_CONFIG_SRCDIR([Makefile.am])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([dist-bzip2])
 
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 TODAY="`LC_ALL=C date +'%a, %d %b %Y %X %z'`"