The usual Cabal installation procedure works:

runghc Setup.lhs configure
runghc Setup.lhs build
runghc Setup.lhs install

The last step may require root privileges.  The default install
location is /usr/local/bin.  This can be changed by supplying a
different "--prefix" option to the configure step (default:
/usr/local).


Emacs installation
~~~~~~~~~~~~~~~~~~

The preliminary Emacs interface is in elisp/typalyze.el.
Add something like this to your Emacs configuration file:


  (add-to-list 'load-path "/path/to/elisp/typalyze.el")
  (require 'typalyze)


Cabal will install the elisp files for version x.y.z under

  /usr/local/share/typalyze-x.y.z/elisp/typalyze.el

by default, for example.