*** setup configure

Creating dist/setup (and its parents)
/usr/local/bin/ghc --make Setup.lhs -o dist/setup/setup -odir dist/setup -hidir dist/setup
[1 of 1] Compiling Main             ( Setup.lhs, dist/setup/Main.o )
Linking dist/setup/setup ...
dist/setup/setup configure --ghc --user --prefix=/usr/local/tmp/archive/install --haddock-option=--use-contents=http://hackage.haskell.org/cgi-bin/hackage-scripts/package/xmonad-0.4.1 --verbose
Configuring xmonad-0.4.1...
Warning: No 'build-type' specified. If you do not need a custom Setup.hs or
./configure script then use 'build-type: Simple'.
Dependency X11==1.3.0: using X11-1.3.0
Dependency base>=2.0: using base-3.0.1.0
Dependency mtl>=1.0: using mtl-1.1.0.1
Dependency unix>=1.0: using unix-2.3.0.0
Using Cabal-1.4.0.2 compiled by ghc-6.8
Using compiler: ghc-6.8.2
Using install prefix: /usr/local/tmp/archive/install
Binaries installed in: /usr/local/tmp/archive/install/bin
Libraries installed in:
/usr/local/tmp/archive/install/lib/xmonad-0.4.1/ghc-6.8.2
Private binaries installed in: /usr/local/tmp/archive/install/libexec
Data files installed in: /usr/local/tmp/archive/install/share/xmonad-0.4.1
Documentation installed in:
/usr/local/tmp/archive/install/share/doc/xmonad-0.4.1
Using alex version 2.0.1 found on system at: /usr/local/bin/alex
Using ar found on system at: /usr/bin/ar
Using c2hs version 0.15.1 found on system at: /usr/local/bin/c2hs
Using cpphs version 0.7 found on system at: /usr/bin/cpphs
Using ffihugs found on system at: /usr/local/bin/ffihugs
Using ghc version 6.8.2 found on system at: /usr/local/bin/ghc
Using ghc-pkg version 6.8.2 found on system at: /usr/local/bin/ghc-pkg
No greencard found
Using haddock version 2.1.0 found on system at: /usr/local/bin/haddock
Using happy version 1.17 found on system at: /usr/local/bin/happy
No hmake found
Using hsc2hs version 0.66 found on system at: /usr/local/bin/hsc2hs
Using hscolour version 1.9 found on system at: /usr/local/bin/HsColour
Using hugs found on system at: /usr/local/bin/hugs
No jhc found
Using ld found on system at: /usr/bin/ld
No nhc98 found
Using pkg-config version 0.22 found on system at: /usr/bin/pkg-config
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /bin/tar

*** setup build

dist/setup/setup build --verbose
Creating dist/build (and its parents)
Creating dist/build/autogen (and its parents)
Preprocessing executables for xmonad-0.4.1...
Building xmonad-0.4.1...
Building executable: xmonad...
Creating dist/build/xmonad (and its parents)
Creating dist/build/xmonad/xmonad-tmp (and its parents)
/usr/local/bin/ghc -o dist/build/xmonad/xmonad --make -hide-all-packages -i -idist/build/xmonad/xmonad-tmp -i. -idist/build/autogen -Idist/build/xmonad/xmonad-tmp -odir dist/build/xmonad/xmonad-tmp -hidir dist/build/xmonad/xmonad-tmp -stubdir dist/build/xmonad/xmonad-tmp -package X11-1.3.0 -package base-3.0.1.0 -package mtl-1.1.0.1 -package unix-2.3.0.0 -O -funbox-strict-fields -O2 -fasm -Wall -optl-Wl,-s -XGeneralizedNewtypeDeriving ./Main.hs

XMonad.hs:42:17:
    Could not find module `Data.Set':
      it is a member of package containers-0.1.0.0, which is hidden