[metacity] Use AM_SILENT_RULES for nicer build status

[Olav Vitters <ovitters src gnome org>]

commit b00210d5c69144431cf3d2fcda91afe033b7c38a
Author: Olav Vitters <olav vitters nl>
Date:   Tue Jun 21 19:30:40 2011 +0200

    Use AM_SILENT_RULES for nicer build status

 configure.in |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.in b/configure.in
index a90480a..ac6ccc6 100644
--- a/configure.in
+++ b/configure.in
@@ -15,6 +15,7 @@ AC_CONFIG_SRCDIR(src/core/display.c)
 AC_CONFIG_HEADERS(config.h)
 
 AM_INIT_AUTOMAKE([1.11.1 no-dist-gzip dist-xz])
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
 AM_MAINTAINER_MODE
 
 # Honor aclocal flags