Alex> In other words, you are saying that I want a feature, first class
    Alex> polymorphism, that is now available in Hugs1.3c and from the docs,
    Alex> GHC4.0?.

Yes.

    Alex> Since I am doing development in Hugs 1.4, I guess the question is when
    Alex> will Hugs1.4  have this feature and is this feature
    Alex> compatible with Derive?

As far as I know, the Hugs 1.4 folks are working on it. Derive is only 
a preprocessor for data type declarations, I don't know whether it
works with existentially typed or polymorphic constructor
arguments. If you don't have these, then I don't see any problems.

    Alex> Alternatively, since GHC 4.0 is there a way to run just the type-checker
    Alex> part of GHC 4.0 without waiting for it to compile everything?

    Alex> Also, has anyone manageed to build GHC4.0 for win32?

Sorry, beats me.

-Peter


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