[gnome-disk-utility] Use AM_SILENT_RULES if available

[David Zeuthen <davidz src gnome org>]

commit 8d2075fb02fe0c6b0e097b30c8c287936122fce6
Author: David Zeuthen <davidz redhat com>
Date:   Fri Jun 19 19:25:52 2009 -0400

    Use AM_SILENT_RULES if available

 configure.ac |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 878918c..01b9c68 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,6 +23,8 @@ AC_ISC_POSIX
 AC_HEADER_STDC
 AC_PROG_LIBTOOL
 
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
 #### gcc warning flags
 
 AC_ARG_ENABLE(ansi,             [  --enable-ansi           enable -ansi -pedantic gcc flags],enable_ansi=$enableval,enable_ansi=no)