*** setup configure

Reading installed packages...
/usr/local/bin/ghc-pkg dump --global
/usr/local/bin/ghc-pkg dump --user
/usr/local/bin/ghc --print-libdir
Creating setup (and its parents)
/usr/local/bin/ghc -package Cabal-1.8.0.6 --make Setup.lhs -o setup/setup -odir setup -hidir setup

Distribution/ShellHarness.hs:11:7:
    Ambiguous module name `System.FilePath':
      it was found in multiple packages:
      system-filepath-0.1.1 filepath-1.1.0.4

*** Trying again with preferred-versions

*** setup configure

Reading installed packages...
/usr/local/bin/ghc-pkg dump --global
/usr/local/bin/ghc-pkg dump --user
/usr/local/bin/ghc --print-libdir
Creating setup (and its parents)
/usr/local/bin/ghc -package Cabal-1.8.0.6 --make Setup.lhs -o setup/setup -odir setup -hidir setup

Distribution/ShellHarness.hs:11:7:
    Ambiguous module name `System.FilePath':
      it was found in multiple packages:
      system-filepath-0.1.1 filepath-1.1.0.4