the OS/2 API call. Unfortunately this only works on socket handles which will
break probe_writable_fds() so I'll have to find a way to fix that too.
Submitted by: Brian Havard
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@83796 13f79535-47bb-0310-9956-ffa450edef68