[glib] Prevent unused variable warnings from G_DEFINE_DYNAMIC_TYPE

[Matthias Clasen <matthiasc src gnome org>]

commit 6fe2f5f11b5dee144658e25c2b152fa2f0edd7eb
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jan 28 12:26:23 2011 -0500

    Prevent unused variable warnings from G_DEFINE_DYNAMIC_TYPE

 gobject/gtypemodule.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gobject/gtypemodule.h b/gobject/gtypemodule.h
index 464531c..4e02520 100644
--- a/gobject/gtypemodule.h
+++ b/gobject/gtypemodule.h
@@ -193,7 +193,7 @@ type_name##_get_type (void) \
 static void \
 type_name##_register_type (GTypeModule *type_module) \
 { \
-  GType g_define_type_id; \
+  GType g_define_type_id G_GNUC_UNUSED; \
   const GTypeInfo g_define_type_info = { \
     sizeof (TypeName##Class), \
     (GBaseInitFunc) NULL, \