--- ./configure.ac~	2009-07-01 05:48:03.000000000 +0900
+++ ./configure.ac	2010-08-05 16:35:57.000000000 +0900
@@ -20,6 +20,7 @@
 AC_INIT
 AC_CONFIG_SRCDIR([lib/iconv.c])
 AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([libiconv], [1.13.1])
 AC_CONFIG_HEADERS([config.h lib/config.h])
 AC_PROG_MAKE_SET
--- ./libcharset/configure.ac~	2009-06-21 20:17:33.000000000 +0900
+++ ./libcharset/configure.ac	2010-08-05 16:37:15.000000000 +0900
@@ -23,6 +23,7 @@
 
 AC_INIT([lib/localcharset.c])
 AC_CONFIG_AUX_DIR([build-aux])
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADER([config.h])
 AC_PROG_MAKE_SET
 AC_SUBST([PACKAGE])
--- ./preload/configure.ac~	2009-06-21 20:17:33.000000000 +0900
+++ ./preload/configure.ac	2010-08-05 16:44:42.000000000 +0900
@@ -23,6 +23,7 @@
 
 AC_INIT([configure.ac])
 AC_CONFIG_AUX_DIR([../build-aux])
+AC_CONFIG_MACRO_DIR([../m4])
 AC_PROG_MAKE_SET
 AC_SUBST([PACKAGE])
 AC_SUBST([VERSION])