From Jeremy: In my previous patch, I "overfixed" hook.c. This patch

removes the changes I made to the searching for loop since those are
extraneous due to the remove function call in the delete for loop.

hw/darwin/quartz/xpr/x-hook.c

@@ -50,19 +50,12 @@ X_PFX (hook_remove) (x_list *lst, x_hook_function *fun, void *data)
 {
     x_list *node, *cell;
     x_list *to_delete = NULL;
-    x_list *prev = NULL;
 
-    for (node = lst; node != NULL; prev = node, node = node->next)
+    for (node = lst; node != NULL; node = node->next)
     {
 	cell = node->data;
 	if (CELL_FUN (cell) == fun && CELL_DATA (cell) == data)
-        {
 	    to_delete = X_PFX (list_prepend) (to_delete, cell);
-            if(lst == node)
-                lst = node->next;
-            else
-                prev->next = node->next;
-        }
     }
 
     for (node = to_delete; node != NULL; node = node->next)