[gnome-online-accounts] build: Fix build failure due to missing IT_PROG_INTLTOOL

[Debarshi Ray <debarshir src gnome org>]

commit 3919de047d3ad0434d1824b6531bb49d4a43efce
Author: Seán de Búrca <leftmostcat gmail com>
Date:   Mon Aug 12 17:39:27 2013 +0200

    build: Fix build failure due to missing IT_PROG_INTLTOOL
    
    Add the m4 subdirectory to ACLOCAL_AMFLAGS and AC_CONFIG_MACRO_DIR.
    
    Fixes: https://bugzilla.gnome.org/705366

 Makefile.am  |    2 ++
 configure.ac |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index ddbb4a1..4a15473 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,6 +3,8 @@ NULL =
 
 SUBDIRS = data src doc po
 
+ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
+
 # introspection and docs doesn't work with src != build
 DISTCHECK_CONFIGURE_FLAGS=--disable-introspection --disable-gtk-doc
 
diff --git a/configure.ac b/configure.ac
index b571717..9fa6678 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,6 +15,7 @@ AC_INIT([GNOME Online Accounts],
         [gnome-online-accounts])
 
 AM_INIT_AUTOMAKE([1.9 foreign dist-xz no-dist-gzip tar-ustar])
+AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([src])
 AC_CONFIG_HEADERS([config.h])