[epiphany-extensions] build: enable silent build with automake 1.11

[Diego Escalante Urrelo <diegoe src gnome org>]

commit c98b47615906e17fbc813e762dfe63c493cb5858
Author: Diego Escalante Urrelo <diegoe gnome org>
Date:   Mon Sep 7 14:50:45 2009 -0500

    build: enable silent build with automake 1.11

 configure.ac |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4fd4913..61a2efc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -39,6 +39,9 @@ AC_CONFIG_MACRO_DIR([m4])
 
 AM_INIT_AUTOMAKE([1.9 foreign dist-bzip2 no-dist-gzip tar-ustar])
 
+# Use AM_SILENT_RULES if present
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
 if test -z "$enable_maintainer_mode"; then
   enable_maintainer_mode=yes
 fi