freeaddrinfo().

and build directories, just in case somebody previously configured
things in the source directory.

are not so good.

show expected time to complete.  That's kind of inconsistent, but
people can probably cope.  Hopefully we'll get more consistent and
complete progress reporting soon. (Cameron Simpson)

utilities we might need.  (Like 'whoami' in this case.)

Lee Eakin.

reports.  (We mostly want to know if they're root or not.)

running the test case.

  that when we reap it and log a message.

  continue trying to read to see if an error message comes across
  explaining why the socket is closed.  I'm not sure if this would
  work, but it would certainly make our messages more helpful.