use xmalloc_uncollectable in make_cl_data

* src/gtkutil.c (make_cl_data): Allocate the callback data with
  `xmalloc_uncollectable'.

diff --git a/src/gtkutil.c b/src/gtkutil.c
index b01382a..b43901b 100644 (file)
--- a/src/gtkutil.c
+++ b/src/gtkutil.c
@@ -2119,7 +2119,7 @@ make_cl_data (xg_menu_cb_data *cl_data, struct frame *f, GCallback highlight_cb)
 {
   if (! cl_data)
     {
-      cl_data = xmalloc (sizeof *cl_data);
+      cl_data = xmalloc_uncollectable (sizeof *cl_data);
       cl_data->f = f;
       cl_data->menu_bar_vector = f->menu_bar_vector;
       cl_data->menu_bar_items_used = f->menu_bar_items_used;