Houston, I've got a problem. Having the latest GHC from darcs installed, I cannot configure xmonad any more. vvv@fun:~/src/xmonad$ runhaskell Setup.lhs clean cleaning... vvv@fun:~/src/xmonad$ runhaskell Setup.lhs configure --user --prefix=$HOME Configuring xmonad-0.4... Setup.lhs: At least the following dependencies are missing: base <3, unix -any vvv@fun:~/src/xmonad$ runhaskell Setup.lhs configure --prefix=$HOME Configuring xmonad-0.4... Setup.lhs: At least the following dependencies are missing: X11 ==1.4.0, mtl -any The dependencies are actually there, AFAIU: vvv@fun:~/src/xmonad$ ghc-pkg list /home/vvv/lib/ghc-6.9.20071125/package.conf: Cabal-1.3, array-0.1, base-3.0, bytestring-0.9, containers-0.1, directory-1.0, filepath-1.1, (ghc-6.9.20071125), haskell98-1.0.1, hpc-0.5, old-locale-1.0, old-time-1.0, packedstring-0.1, pretty-1.0, process-1.0, random-1.0, readline-1.0.1, rts-1.0, template-haskell-2.2, unix-2.2 /home/vvv/.ghc/i386-linux-6.9.20071125/package.conf: X11-1.4.0, mtl-1.1.0.0 A hint is highly welcome. ;) -- vvv