re PR ada/13142 (gnat1 generating call to library 'setjmp', not using __buitin_setjmp)

	PR ada/13142
	* utils.c (init_gigi_decls): Change name of built-in setjmp to
	__builtin_setjmp, since this is apparently needed by recent
	non Ada changes.

From-SVN: r73881

gcc/ada/utils.c

@@ -675,7 +675,7 @@ init_gigi_decls (tree long_long_float_type, tree exception_type)
      a jmpbuf.  */
   setjmp_decl
     = create_subprog_decl
-      (get_identifier ("setjmp"), NULL_TREE,
+      (get_identifier ("__builtin_setjmp"), NULL_TREE,
        build_function_type (integer_type_node,
 			    tree_cons (NULL_TREE,  jmpbuf_ptr_type, endlink)),
        NULL_TREE, 0, 1, 1, 0);