[gnome-desktop] Fix srcdir != builddir

[Giovanni Campagna <gcampagna src gnome org>]

commit 93ecd4ad2ad5a5890f98f708f1ad06b3af7eff86
Author: Giovanni Campagna <gcampagn redhat com>
Date:   Mon Aug 19 10:05:52 2013 +0200

    Fix srcdir != builddir

 libgnome-desktop/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/libgnome-desktop/Makefile.am b/libgnome-desktop/Makefile.am
index 2fba034..fa95bb3 100644
--- a/libgnome-desktop/Makefile.am
+++ b/libgnome-desktop/Makefile.am
@@ -57,7 +57,7 @@ $(dbus_xrandr_built_sources) : Makefile.am xrandr.xml
                --interface-prefix org.gnome.Mutter                                     \
                --c-namespace MetaDBus                                                  \
                --generate-c-code meta-dbus-xrandr                                      \
-               xrandr.xml
+               $(srcdir)/xrandr.xml
 
 BUILT_SOURCES = $(dbus_xrandr_built_sources)