Make sure "CRYPTO_mem_leaks_fp" doesn't itself create a reportable memory

	BIO *b;

	if (mh == NULL) return;

	/* Need to turn off memory checking when allocated BIOs ... especially

	 * as we're creating them at a time when we're trying to check we've not

	 * left anything un-free()'d!! */

	MemCheck_off();

	if ((b=BIO_new(BIO_s_file())) == NULL)

		return;

	MemCheck_on();

	BIO_set_fp(b,fp,BIO_NOCLOSE);

	CRYPTO_mem_leaks(b);

	BIO_free(b);