[network-manager-applet] configure.ac: require automake 1.11

[Dan Winship <danw src gnome org>]

commit b7bc1dd48fbd91a8a9abdf9ae67ee7a388098c06
Author: Dan Winship <danw gnome org>
Date:   Mon May 13 10:39:55 2013 -0400

    configure.ac: require automake 1.11
    
    Require automake 1.11, since lots of other packages do now (in
    particular, NetworkManager). This also lets us unconditionalize
    AM_SILENT_RULES.

 configure.ac |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 464d912..10d73a1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7,13 +7,9 @@ AC_INIT([nm-applet],
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE([1.10 subdir-objects no-dist-gzip dist-bzip2 -Wno-portability])
+AM_INIT_AUTOMAKE([1.11 subdir-objects no-dist-gzip dist-bzip2 -Wno-portability])
 AM_MAINTAINER_MODE([enable])
-
-# Support silent build rules, requires at least automake-1.11. Disable
-# by either passing --disable-silent-rules to configure or passing V=1
-# to make
-m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([no])])
+AM_SILENT_RULES([yes])
 
 dnl
 dnl Require programs