xmonad unable to compile config file

Binary package hint: xmonad

Getting error while compiling xmonad config file:

andrey@pepelaz:~$ cat > .xmonad/xmonad.hs
import XMonad

main = xmonad defaultConfig
andrey@pepelaz:~$ ghci .xmonad/xmonad.hs
GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( .xmonad/xmonad.hs, interpreted )
Failed to load interface for `Graphics.X11.Xlib.Extras':
  no package matching X11-1.4.1 was found
> Leaving GHCi.
andrey@pepelaz:~$
andrey@pepelaz:~$ lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10
andrey@pepelaz:~$ apt-cache policy xmonad
xmonad:
  Installed: 0.8-1
  Candidate: 0.8-1
  Version table:
 *** 0.8-1 0
        500 http://archive.ubuntu.com intrepid/universe Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
Package: xmonad 0.8-1
ProcEnviron:
 SHELL=/bin/bash
 PATH=/home/username/.oracle/client/instantclient_10_2:/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin:/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
SourcePackage: xmonad
Uname: Linux 2.6.27-7-generic i686