SSL: clear error queue after OPENSSL_init_ssl(). The function may leave error in the error queue while returning success, e.g., when taking a DSO reference to itself as of OpenSSL 1.1.0d: https://git.openssl.org/?p=openssl.git;a=commit;h=4af9f7f Notably, this fixes alert seen with statically linked OpenSSL on some platforms. While here, check OPENSSL_init_ssl() return value.

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


all:
	cd $(OPENSSL)

	perl Configure BC-32 no-shared --prefix=openssl $(OPENSSL_OPT)

	ms\do_nasm

	$(MAKE) -f ms\bcb.mak
	$(MAKE) -f ms\bcb.mak install

	# Borland's make does not expand "[ch]" in
	#    copy "inc32\openssl\*.[ch]" "openssl\include\openssl"
	copy inc32\openssl\*.h openssl\include\openssl