[hitori] build: Add AC_CONFIG_MACRO_DIR to configure.ac

[Philip Withnall <pwithnall src gnome org>]

commit d4cbd819d020e3727c7bdab3c74c93b2ca4995a8
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Fri Feb 20 16:26:34 2015 +0000

    build: Add AC_CONFIG_MACRO_DIR to configure.ac

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4c53441..6b2c739 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,6 +2,7 @@ AC_INIT([Hitori],[3.14.2.1],[https://bugzilla.gnome.org/enter_bug.cgi?product=hi
 
 AM_INIT_AUTOMAKE([check-news dist-xz no-dist-gzip subdir-objects])
 AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_MACRO_DIR([m4])
 AM_MAINTAINER_MODE([enable])
 
 AC_PROG_CC