Win32: Work around bug in Win32 select on network reads. Select

can indicate a socket has data to read, but the subsequent read
can return WSAEWOULDBLOCK. This problem has been observed
when running with SSL enabled Apache, specifically, browsers
sometimes cannot complete the SSL handshake when an SGC
certificate is used, receiving a network error message.

Submitted by:	Richard Scholz <richard.scholz@subito.de>
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@86166 13f79535-47bb-0310-9956-ffa450edef68