This function is documented to be deprecated since OpenSSL 1.1.0. We
need to make it so in openssl/ssl.h as well.
Fixes #6565
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6588)
# define SSL_VERIFY_CLIENT_ONCE 0x04
# define SSL_VERIFY_POST_HANDSHAKE 0x08
-# define OpenSSL_add_ssl_algorithms() SSL_library_init()
# if OPENSSL_API_COMPAT < 0x10100000L
+# define OpenSSL_add_ssl_algorithms() SSL_library_init()
# define SSLeay_add_ssl_algorithms() SSL_library_init()
# endif