[gnome-desktop] build: Add AM_MAINTAINER_MODE

[Colin Walters <walters src gnome org>]

commit ead28885444579084bacf303243f3df12c2704c9
Author: Colin Walters <walters verbum org>
Date:   Wed Oct 24 12:07:12 2012 -0400

    build: Add AM_MAINTAINER_MODE
    
    So we have the ability to do rebuild-Makefile-on-Makefile.am changes
    for developers.

 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 269cd97..5c3a473 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,6 +13,7 @@ AC_INIT([gnome-desktop], gnome_version,
 AC_CONFIG_SRCDIR([libgnome-desktop])
 
 AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz tar-ustar])
+AM_MAINTAINER_MODE([enable])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 AC_CONFIG_HEADERS([config.h])