SSL: logging levels of "unsupported protocol", "version too low". Starting with OpenSSL 1.1.0, SSL_R_UNSUPPORTED_PROTOCOL instead of SSL_R_UNKNOWN_PROTOCOL is reported when a protocol is disabled via an SSL_OP_NO_* option. Additionally, SSL_R_VERSION_TOO_LOW is reported when using MinProtocol or when seclevel checks (as set by @SECLEVEL=n in the cipher string) rejects a protocol, and this is what happens with SSLv3 and @SECLEVEL=1, which is the default. There is also the SSL_R_VERSION_TOO_HIGH error code, but it looks like it is not possible to trigger it.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


all:
	cd $(OPENSSL)

	perl Configure VC-WIN32 no-shared				\
		--prefix="%cd%/openssl" 				\
		--openssldir="%cd%/openssl/ssl" 			\
		$(OPENSSL_OPT)

	if exist ms\do_ms.bat (						\
		ms\do_ms						\
		&& $(MAKE) -f ms\nt.mak					\
		&& $(MAKE) -f ms\nt.mak install				\
	) else (							\
		$(MAKE)							\
		&& $(MAKE) install_sw					\
	)