Latest update.

test/verify_extra_test.c

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2020 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
@@ -16,6 +16,8 @@
 #include <openssl/err.h>
 #include "testutil.h"
 
+DEFINE_STACK_OF(X509)
+
 static const char *roots_f;
 static const char *untrusted_f;
 static const char *bad_f;