diff --git a/configure.in b/configure.in
index e865b04..478b689 100644
--- a/configure.in
+++ b/configure.in
@@ -3,8 +3,11 @@ dnl $Id: configure.in,v 1.23 2014-03-18 06:33:20 knok Exp $
 
 AC_INIT
 AC_CONFIG_SRCDIR([src/kakasi.c])
+AC_CONFIG_MACRO_DIRS([m4])
 AC_PREREQ([2.50])
 AM_INIT_AUTOMAKE(kakasi, 2.3.6)
+AM_GNU_GETTEXT_VERSION([0.21])
+AM_GNU_GETTEXT([external])
 
 AM_MAINTAINER_MODE