$ runhaskell Setup.lhs configure
Configuring xmonad-0.2...
configure: Dependency base>=1.0: using base-2.1.1
configure: Dependency X11>=1.2.1: using X11-1.2.1
configure: Dependency X11-extras>=0.2: using X11-extras-0.2
configure: Dependency mtl>=1.0: using mtl-1.0.1
configure: Dependency unix>=1.0: using unix-2.1
configure: Using install prefix: /usr/local
configure: Binaries installed in: /usr/local/bin
configure: Libraries installed in: /usr/local/lib/xmonad-0.2/ghc-6.6.1
configure: Private binaries installed in: /usr/local/libexec
configure: Data files installed in: /usr/local/share/xmonad-0.2
configure: Using compiler: /usr/bin/ghc
configure: Compiler flavor: GHC
configure: Compiler version: 6.6.1
configure: Using package tool: /usr/bin/ghc-pkg
configure: Using ar found on system at: /usr/bin/ar
configure: No haddock found
configure: No pfesetup found
configure: Using ranlib found on system at: /usr/bin/ranlib
configure: Using runghc found on system at: /usr/bin/runghc
configure: Using runhugs found on system at: /usr/bin/runhugs
configure: No happy found
configure: No alex found
configure: Using hsc2hs: /usr/bin/hsc2hs
configure: No c2hs found
configure: No cpphs found
configure: No greencard found
$ runhaskell Setup.lhs build
Preprocessing executables for xmonad-0.2...
Building xmonad-0.2...
[1 of 6] Compiling StackSet         ( StackSet.hs, dist/build/xmonad/xmonad-tmp/StackSet.o )

StackSet.hs:270:31:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty

StackSet.hs:275:33:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty

StackSet.hs:280:30:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty

StackSet.hs:285:32:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty

StackSet.hs:368:11:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty

StackSet.hs:390:34:
    Warning: Pattern match(es) are non-exhaustive
             In a case alternative: Patterns not matched: Empty
[2 of 6] Compiling XMonad           ( XMonad.hs, dist/build/xmonad/xmonad-tmp/XMonad.o )
[3 of 6] Compiling Config[boot]     ( Config.hs-boot, nothing )
[4 of 6] Compiling Operations       ( Operations.hs, dist/build/xmonad/xmonad-tmp/Operations.o )
[5 of 6] Compiling Config           ( Config.hs, dist/build/xmonad/xmonad-tmp/Config.o )
[6 of 6] Compiling Main             ( Main.hs, dist/build/xmonad/xmonad-tmp/Main.o )
Linking dist/build/xmonad/xmonad ...
$ runhaskell Setup.lhs install
Installing: /usr/local/lib/xmonad-0.2/ghc-6.6.1 & /usr/local/bin xmonad-0.2...