Breakage with 6.10

[Don Stewart]

Quick summary of the latest hackage state, now hslogger has been
amended.

x86_64/linux/ghc-6.10/cabal-install 0.6/Cabal 1.6

      1 UnpackFailed
      2 DownloadFailed
      2 InstallFailed
     16 ConfigureFailed
     71 DependencyFailed
    138 BuildFailed
    447 InstallOk

So you can see that DependencyFailed is down 30, thanks to hslogger now
working. InstallOk is up about 23.

A breakdown of the remaing causes for DependencyFailed,

      2 Win32-2.1.0.0
      2 Yampa-0.9.2.2
      2 hint-0.2.4.1
      2 hsdns-1.3
      2 plugins-1.3
      3 pandoc-1.0.0.1
      3 stringtable-atom-0.0.4
      4 TypeCompose-0.5
      4 hsql-1.7
      4 hsx-0.4.4
      5 hxt-8.1.0
      6 HAppS-Data-0.9.2.1
      6 arrows-0.4
      6 wxcore-0.10.3

The main thing to fix there is 'arrows', an extra lib, we'll bump that.

arrows fails due to:

    [ 3 of 12] Compiling Control.Arrow.Transformer.CoState ( Control/Arrow/Transformer/CoState.hs, dist/build/Control/Arrow/Transformer/CoState.o )

    Control/Arrow/Transformer/CoState.hs:24:29:
        Module `Control.Arrow' does not export `pure'

Even though cabal-install decided to use base-3.0.3.0

So that means base-3 is *not* exporting quite the same interface as last time.
Were we aware of this?

-- Don