[gdlmm] Set silent compilation

[Fabien Parent <fparent src gnome org>]

commit 7a0d944907c7dbbe0f37d9debbd40b4f3a4efa7c
Author: Fabien Parent <parent f gmail com>
Date:   Mon Sep 5 19:17:35 2011 +0200

    Set silent compilation

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index fa8de64..6e29aa7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,6 +26,7 @@ AC_CONFIG_HEADERS([build/config.h gdl/gdlmmconfig.h])
 AM_INIT_AUTOMAKE([1.9 -Wno-portability check-news dist-bzip2 no-define nostdinc tar-ustar])
 AM_MAINTAINER_MODE
 AC_ARG_VAR([ACLOCAL_FLAGS], [aclocal flags, e.g. -I <macro dir>])
+m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 
 MM_PREREQ([0.8])
 MM_INIT_MODULE([gdlmm-3.0])