[Haskell-cafe] Haskell IDEs on Windows; gtk2hs

Alistair Bayley alistair at abayley.org
Fri Feb 12 16:45:10 EST 2010

I thought I'd try some of the Haskell IDEs: eclipsefp, leksah, and yi.
So far, leksah requires gtk2hs (and apparently yi can use it too?),
and the latest gtk2hs installer for Windows doesn't like the latest
Haskell Platform, so I'm going to try building gtk2hs from source,
unless anyone tells me that it's a waste of time.

Building yi fails with:

    Duplicate instance declarations:
      instance Category Accessor.T -- Defined at Yi\Prelude.hs:182:9-38
      instance Category Accessor.T
        -- Defined in data-accessor-
cabal: Error: some packages failed to install:
yi-0.6.1 failed during the building phase. The exception was:
exit: ExitFailure 1

Presumably data-accessor has been updated, but yi has not? What is the
easiest fix? Downgrade to an earlier version of data-accessor?

So that just leaves eclipsefp. Still trying to figure out how to
install eclipse plugins...


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