Hi all, I'm trying to get a program that uses the Data.Generics module to compile under the head version of GHC, but I am having trouble getting the syb package installed. I believe I am using the most recent version of cabal:

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/.cabal/bin/cabal --version cabal-install version 0.8.0 using version 1.8.0.1 of the Cabal library

When I ask cabal to install the syb package, I get the following error:

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/.cabal/bin/cabal install -w ~/sw/ghc-head/bin/ghc Resolving dependencies... Downloading mtl-1.1.0.2... Configuring mtl-1.1.0.2... Preprocessing library mtl-1.1.0.2... ... Registering syb-0.1.0.3... cabal: ghc-pkg: <stdin>: hGetContents: invalid argument (invalid UTF-8 byte sequence) cabal: Error: some packages failed to install: language-c-quote-0.1 depends on syb-0.1.0.3 which failed to install. syb-0.1.0.3 failed during the building phase. The exception was: exit: ExitFailure 1

The full trace is included below. Here's the version information for the ghc I am running.

Kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/sw/ghc-head/bin/ghc --version The Glorious Glasgow Haskell Compilation System, version 6.13.20100210

The cabal website suggests sending questions to this list... Any suggestions for how to fix this problem? Kathleen

kfisher-laptop:/Users/kfisher/pads/dirpads/language-c-quote>~/.cabal/bin/cabal install -w ~/sw/ghc-head/bin/ghc Resolving dependencies... Downloading mtl-1.1.0.2... Configuring mtl-1.1.0.2... Preprocessing library mtl-1.1.0.2... Building mtl-1.1.0.2... [ 1 of 21] Compiling Control.Monad.Identity ( Control/Monad/Identity.hs, dist/build/Control/Monad/Identity.o )

Control/Monad/Cont.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Cont/Class.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Error.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Error/Class.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/List.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/RWS/Lazy.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/RWS/Strict.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Reader.hs:2:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Reader/Class.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/State/Lazy.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/State/Strict.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Writer.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Writer/Class.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Writer/Lazy.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead

Control/Monad/Writer/Strict.hs:1:12: Warning: -fallow-undecidable-instances is deprecated: use -XUndecidableInstances or pragma {-# LANGUAGE UndecidableInstances #-} instead [ 2 of 21] Compiling Control.Monad.Writer.Class ( Control/Monad/Writer/Class.hs, dist/build/Control/Monad/Writer/Class.o ) [ 3 of 21] Compiling Control.Monad.Error.Class ( Control/Monad/Error/Class.hs, dist/build/Control/Monad/Error/Class.o ) [ 4 of 21] Compiling Control.Monad.State.Class ( Control/Monad/State/Class.hs, dist/build/Control/Monad/State/Class.o ) [ 5 of 21] Compiling Control.Monad.Reader.Class ( Control/Monad/Reader/Class.hs, dist/build/Control/Monad/Reader/Class.o ) [ 6 of 21] Compiling Control.Monad.RWS.Class ( Control/Monad/RWS/Class.hs, dist/build/Control/Monad/RWS/Class.o ) [ 7 of 21] Compiling Control.Monad.Trans ( Control/Monad/Trans.hs, dist/build/Control/Monad/Trans.o )

Control/Monad/Trans.hs:26:1: Warning: The import of `System.IO' is redundant except perhaps to import instances from `System.IO' To import instances alone, use: import System.IO() [ 8 of 21] Compiling Control.Monad.Cont.Class ( Control/Monad/Cont/Class.hs, dist/build/Control/Monad/Cont/Class.o ) [ 9 of 21] Compiling Control.Monad.Reader ( Control/Monad/Reader.hs, dist/build/Control/Monad/Reader.o ) [10 of 21] Compiling Control.Monad.Error ( Control/Monad/Error.hs, dist/build/Control/Monad/Error.o )

Control/Monad/Error.hs:63:1: Warning: The import of `System.IO' is redundant except perhaps to import instances from `System.IO' To import instances alone, use: import System.IO() [11 of 21] Compiling Control.Monad.List ( Control/Monad/List.hs, dist/build/Control/Monad/List.o ) [12 of 21] Compiling Control.Monad.RWS.Lazy ( Control/Monad/RWS/Lazy.hs, dist/build/Control/Monad/RWS/Lazy.o ) [13 of 21] Compiling Control.Monad.RWS ( Control/Monad/RWS.hs, dist/build/Control/Monad/RWS.o ) [14 of 21] Compiling Control.Monad.RWS.Strict ( Control/Monad/RWS/Strict.hs, dist/build/Control/Monad/RWS/Strict.o ) [15 of 21] Compiling Control.Monad.State.Lazy ( Control/Monad/State/Lazy.hs, dist/build/Control/Monad/State/Lazy.o ) [16 of 21] Compiling Control.Monad.State ( Control/Monad/State.hs, dist/build/Control/Monad/State.o ) [17 of 21] Compiling Control.Monad.State.Strict ( Control/Monad/State/Strict.hs, dist/build/Control/Monad/State/Strict.o ) [18 of 21] Compiling Control.Monad.Writer.Lazy ( Control/Monad/Writer/Lazy.hs, dist/build/Control/Monad/Writer/Lazy.o ) [19 of 21] Compiling Control.Monad.Writer ( Control/Monad/Writer.hs, dist/build/Control/Monad/Writer.o ) [20 of 21] Compiling Control.Monad.Writer.Strict ( Control/Monad/Writer/Strict.hs, dist/build/Control/Monad/Writer/Strict.o ) [21 of 21] Compiling Control.Monad.Cont ( Control/Monad/Cont.hs, dist/build/Control/Monad/Cont.o ) Registering mtl-1.1.0.2... Installing library in /Users/kfisher/.cabal/lib/mtl-1.1.0.2/ghc-6.13.20100210 Registering mtl-1.1.0.2... Configuring syb-0.1.0.3... Preprocessing library syb-0.1.0.3... Building syb-0.1.0.3... [1 of 7] Compiling Data.Generics.Basics ( src/Data/Generics/Basics.hs, dist/build/Data/Generics/Basics.o ) [2 of 7] Compiling Data.Generics.Instances ( src/Data/Generics/Instances.hs, dist/build/Data/Generics/Instances.o )

src/Data/Generics/Instances.hs:34:1: Warning: In the use of `mkNorepType' (imported from Data.Data): Deprecated: "Use mkNoRepType instead"

src/Data/Generics/Instances.hs:38:1: Warning: Module `GHC.IOBase' is deprecated: use GHC.IO instead [3 of 7] Compiling Data.Generics.Aliases ( src/Data/Generics/Aliases.hs, dist/build/Data/Generics/Aliases.o ) [4 of 7] Compiling Data.Generics.Schemes ( src/Data/Generics/Schemes.hs, dist/build/Data/Generics/Schemes.o ) [5 of 7] Compiling Data.Generics.Text ( src/Data/Generics/Text.hs, dist/build/Data/Generics/Text.o )

src/Data/Generics/Text.hs:30:1: Warning: The import of `Data.Maybe' is redundant except perhaps to import instances from `Data.Maybe' To import instances alone, use: import Data.Maybe()

src/Data/Generics/Text.hs:91:10: Warning: A do-notation statement discarded a result of type Char. Suppress this warning by saying "_ <- char '('", or by using the flag -fno-warn-unused-do-bind

src/Data/Generics/Text.hs:101:10: Warning: A do-notation statement discarded a result of type Char. Suppress this warning by saying "_ <- char ')'", or by using the flag -fno-warn-unused-do-bind [6 of 7] Compiling Data.Generics.Twins ( src/Data/Generics/Twins.hs, dist/build/Data/Generics/Twins.o ) [7 of 7] Compiling Data.Generics ( src/Data/Generics.hs, dist/build/Data/Generics.o )

src/Data/Generics.hs:40:1: Warning: The import of `Prelude' is redundant except perhaps to import instances from `Prelude' To import instances alone, use: import Prelude() Registering syb-0.1.0.3... cabal: ghc-pkg: <stdin>: hGetContents: invalid argument (invalid UTF-8 byte sequence) cabal: Error: some packages failed to install: language-c-quote-0.1 depends on syb-0.1.0.3 which failed to install. syb-0.1.0.3 failed during the building phase. The exception was: exit: ExitFailure 1