image: Add a default case to switch statement to avoid gcc warnings

diff --git a/gtk/gtkimage.c b/gtk/gtkimage.c
index 2e8136682bb5d3ae95acfadb1b9de9f3052c6a1f..94206e39f8829a96a1fb8c3d2db114c5e6993eaf 100644 (file)
--- a/gtk/gtkimage.c
+++ b/gtk/gtkimage.c
@@ -1736,6 +1736,7 @@ gtk_image_draw (GtkWidget *widget,
          break;
          
         case GTK_IMAGE_EMPTY:
+        default:
           g_assert_not_reached ();
           pixbuf = NULL;
           break;