[glib] Fix 'make report'

[Matthias Clasen <matthiasc src gnome org>]

commit 21aff13d22257ae786bbf39bd68f24f448205bfc
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Aug 16 23:23:16 2012 -0400

    Fix 'make report'
    
    Turns out this doesn't work unless every Makefile.am includes
    Makefile.decl.

 gio/gdbus-2.0/codegen/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gio/gdbus-2.0/codegen/Makefile.am b/gio/gdbus-2.0/codegen/Makefile.am
index 9974005..39349ce 100644
--- a/gio/gdbus-2.0/codegen/Makefile.am
+++ b/gio/gdbus-2.0/codegen/Makefile.am
@@ -1,3 +1,4 @@
+include $(top_srcdir)/Makefile.decl
 
 NULL =
 bin_SCRIPTS =