Latest update.

crypto/ui/ui_lib.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -15,6 +15,8 @@
 #include <openssl/err.h>
 #include "ui_local.h"
 
+DEFINE_STACK_OF(UI_STRING)
+
 UI *UI_new(void)
 {
     return UI_new_method(NULL);