[planner] Cleaner build thanks to new silent rule

[Alexandre Franke <afranke src gnome org>]

commit e06805e13cc9d24af07d09fc91dcbc51fba11f0e
Author: Alexandre Franke <alexandre franke gmail com>
Date:   Mon Nov 9 00:05:55 2009 +0100

    Cleaner build thanks to new silent rule

 configure.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.in b/configure.in
index 0bf4855..e2912fa 100644
--- a/configure.in
+++ b/configure.in
@@ -4,6 +4,7 @@ AC_PREREQ(2.54)
 
 AC_INIT(AUTHORS)
 AM_INIT_AUTOMAKE(planner, 0.14.4)
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 AM_CONFIG_HEADER(config.h)
 
 AM_MAINTAINER_MODE