More Win32 fixes. The Configure script used to give *lots* of warnings about use of undefined variables: kludge so they all get initialised. Also avoid use of POSIX module.
More Win32 fixes. The Configure script used to give *lots* of warnings about
use of undefined variables: kludge so they all get initialised. Also avoid use
of POSIX module.

openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl,openssl/openssl