initial suggestions re. compiler server (bug #6565)

[Roland McGrath]

> * The networking aspect of it need not go through xinetd.  If we can't
>   find a suitable shell-script-invokable tool to create/attach-to
>   listening sockets, then perhaps a few-liner perl script could do the

nc does this, and stunnel if one wanted a trivially SSLified version.
There are perl modules that make this trivial too, so just hacker's taste.