Dependencies:

  You're going to need openssl (0.9.5 or later) and popt (1.6 or later).
  If you're on Linux, everything will probably work fine. OS X and BSD
  (but see below under troubleshooting) now work too. Let us know if
  you get it working elsewhere.

If you got the source from cvs:

  Run "./autogen.sh", which will run the various auto* programs and then
  run ./configure for you. From there, you should be able to run 'make'
  and you'll be on your way.

If you got the source from a tarball:

  Run ./configure and make as usual. There isn't much point in 
  'make install' yet.

If this doesn't work for you / troubleshooting:

  If you couldn't find popt (eg you're on BSD), try
    CPPFLAGS="-I/usr/local/include" LDFLAGS="-L/usr/local/lib" \
    ./configure
  rather than simply ./configure. And install popt if you don't have it.

  Check out the list archives at http://archives.seul.org/or/dev/ and see
  if somebody else has reported your problem. If not, please subscribe
  and let us know what you did to fix it, or give us the details and
  we'll see what we can do.

Once you've got it compiled:

  It's a bit hard to figure out what to do with the binaries. If you
  want to run a local onion proxy (that is, you're a user, not a node
  operator), go into src/config and look at the oprc file. You can run an
  onion proxy by "../or/or -f oprc". In another window, run something like
  "../httpap/httpap -f httpaprc2 -p 9051". See below for how to use it.

  If you want to set up your own test network (that is, act like you're
  a full set of node operators), go into src/config/ and look at the
  routers.or file. Also in that directory are public and private keys for
  various nodes (*-public, *-private) and configuration files for the
  nodes (*-orrc). You can generate your own keypairs with the orkeygen
  program, or use the provided ones for testing.

  Once you've got your config files ready, you're ready to start up your
  network. I recommend using a screen session (man screen), or some
  other way to handle many windows at once. I open a window for each
  onion router, go into the src/config directory, and run something like
  "../or/or -f moria2-orrc". In yet another window, I run something like
  "../httpap/httpap -f httpaprc -p 9051". 

How to use it:

  From here, you can point your browser/etc at localhost:9051 and treat
  it as a web proxy. As a first test, you might telnet to it and enter
  "GET http://seul.org/ HTTP/1.0" (without the quotes), followed by a pair
  of carriage returns (one to separate your request from the headers,
  and another to indicate that you're providing no headers). For more
  convenient command-line use, I recommend making a ~/.wgetrc with
  the line
    http_proxy=localhost:9051
  Then you can do things like "wget seul.org" and watch as it downloads
  from the onion routing network.
  (You can set your Mozilla/etc to use localhost:9051 as a proxy, and it
  will work -- but it will work even better if you tell your Mozilla to
  speak only HTTP 1.0 (the http proxy we include doesn't do 1.1 yet.))

  For fun, you can wget a very large file (a megabyte or more), and
  then ^z the wget a little bit in. The onion routers will continue
  talking for a while, queueing around 500k in the kernel-level buffers.
  When the kernel buffers are full, and the outbuf for the AP connection
  also fills, the internal congestion control will kick in and the exit
  connection will stop reading from the webserver. The circuit will
  wait until you fg the wget -- and other circuits will work just fine
  throughout. Then try ^z'ing the onion routers, and watch how well it
  recovers. Then try ^z'ing several of them at once. :)