*** setup configure

Creating setup (and its parents)
/usr/local/bin/ghc --make Setup.hs -o setup/setup -odir setup -hidir setup

Distribution/Simple/InstallDirs.hs:1:11:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/InstallDirs.hs:4:15:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/Utils.hs:1:11:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/Utils.hs:4:15:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead
[16 of 42] Compiling Distribution.Simple.Utils ( Distribution/Simple/Utils.hs, setup/Distribution/Simple/Utils.o )

Distribution/Simple/Utils.hs:246:2:
    Ambiguous type variable `e1' in the constraint:
      `GHC.Exception.Exception e1'
        arising from a use of `Exception.catch'
                     at Distribution/Simple/Utils.hs:246:2-23
    Probable fix: add a type signature that fixes these type variable(s)

Distribution/Simple/Utils.hs:588:31:
    Ambiguous type variable `e' in the constraint:
      `GHC.Exception.Exception e'
        arising from a use of `Exception.throwIO'
                     at Distribution/Simple/Utils.hs:588:31-51
    Probable fix: add a type signature that fixes these type variable(s)

*** Trying again with preferred-versions

*** setup configure

Creating setup (and its parents)
/usr/local/bin/ghc --make Setup.hs -o setup/setup -odir setup -hidir setup

Distribution/Simple/InstallDirs.hs:1:11:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/InstallDirs.hs:4:15:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/Utils.hs:1:11:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead

Distribution/Simple/Utils.hs:4:15:
    Warning: -fffi is deprecated: use -XForeignFunctionInterface or pragma {-# LANGUAGE ForeignFunctionInterface #-} instead
[16 of 42] Compiling Distribution.Simple.Utils ( Distribution/Simple/Utils.hs, setup/Distribution/Simple/Utils.o )

Distribution/Simple/Utils.hs:246:2:
    Ambiguous type variable `e1' in the constraint:
      `GHC.Exception.Exception e1'
        arising from a use of `Exception.catch'
                     at Distribution/Simple/Utils.hs:246:2-23
    Probable fix: add a type signature that fixes these type variable(s)

Distribution/Simple/Utils.hs:588:31:
    Ambiguous type variable `e' in the constraint:
      `GHC.Exception.Exception e'
        arising from a use of `Exception.throwIO'
                     at Distribution/Simple/Utils.hs:588:31-51
    Probable fix: add a type signature that fixes these type variable(s)