[libnotify] Use m4 dir

[William Jon McCann <mccann src gnome org>]

commit 7b7cf7319ec4a0cf4a6cab730fd0456ed4c58d8e
Author: William Jon McCann <jmccann redhat com>
Date:   Thu Jun 24 03:33:12 2010 -0400

    Use m4 dir

 configure.ac |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7333517..d16243a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,6 +7,8 @@ AC_INIT([libnotify],[0.5.0],[https://bugzilla.gnome.org/enter_bug.cgi?product=li
 AC_PREREQ(2.50)
 AC_CONFIG_SRCDIR(config.h.in)
 
+AC_CONFIG_MACRO_DIR([m4])
+
 dnl ################################################################
 dnl # Version information
 dnl ################################################################