test/testutil/tu_local.h - third_party/openssl - Git at Google

 /*
  * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */

 #include <stdlib.h>              /* size_t */

 int subtest_level(void);
 int openssl_error_cb(const char *str, size_t len, void *u);
	/*
	* Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
	*
	* Licensed under the OpenSSL license (the "License"). You may not use
	* this file except in compliance with the License. You can obtain a copy
	* in the file LICENSE in the source distribution or at
	* https://www.openssl.org/source/license.html
	*/

	#include <stdlib.h> /* size_t */

	int subtest_level(void);
	int openssl_error_cb(const char str, size_t len, void u);