re PR bootstrap/54479 (Bootstrap with release-checking broken)

	PR bootstrap/54479
	* vec.h (vec_t::copy): Add cast in call to reserve_exact.

From-SVN: r190937

gcc/ChangeLog

+2012-09-04   Diego Novillo  <dnovillo@google.com>
+
+	PR bootstrap/54479
+	* vec.h (vec_t::copy): Add cast in call to reserve_exact.
+
 2012-09-04  Richard Guenther  <rguenther@suse.de>
 
 	* tree-ssa-pre.c (add_to_exp_gen): Adjust.

gcc/vec.h

@@ -699,7 +699,8 @@ vec_t<T>::copy (ALONE_MEM_STAT_DECL)
 
   if (len)
     {
-      new_vec = vec_t<T>::reserve_exact<A> (NULL, len PASS_MEM_STAT);
+      new_vec = vec_t<T>::reserve_exact<A> (static_cast<vec_t<T> *> (NULL),
+					    len PASS_MEM_STAT);
       new_vec->embedded_init (len, len);
       memcpy (new_vec->address (), vec_, sizeof (T) * len);
     }