[gambit-list] More DS porting issues

Okay, I have a repl and it's stable. That wasn't too bad.

I can start web-repl.scm and get to a select statement. That was a pain. I had to do a pretty large refactor spanning quite a bit of the os_XX files. It has a lot of POSIX'ness wired into the assumption.

And ... select() doesn't work in dswifi. Sigh.

Any advice for how to fake a "select" with polling? What kind of repercussions are there going to be if I return from the select too early? Are there going to be implications if the select() for sockets if different from the select() for stderr/stdout?

Thanks, -a