[gnome-system-monitor] Silence automake warning

[Robert Roth <robertroth src gnome org>]

commit cde25dd0bdaaea6e3c26c88391772d144be41cb5
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Sun Jul 21 00:00:58 2013 +0200

    Silence automake warning
    
    Silence a warning about $(shell) being non-POSIX
    
    https://bugzilla.gnome.org/show_bug.cgi?id=704624

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index e2765b0..17b645f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,7 +10,7 @@ AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([configure.ac])
 AC_CONFIG_MACRO_DIR([m4])
 
-AM_INIT_AUTOMAKE([1.11.1 no-dist-gzip dist-xz])
+AM_INIT_AUTOMAKE([1.11.1 no-dist-gzip dist-xz foreign])
 AM_SILENT_RULES([yes])
 
 AM_MAINTAINER_MODE([enable])