C preprocessor + WinHugs

[Simon Marlow]

On 31 October 2005 09:36, Ross Paterson wrote:

> On Mon, Oct 31, 2005 at 09:02:58AM +0000, Malcolm Wallace wrote:
>> There was talk at one stage of a standard language-extensions pragma,
>> corresponding to your third option.
>>     {-# LANGUAGE cpp MPTC fundeps #-}
>> I think SimonM has just implemented it for ghc, the rest of us are
>> lagging behind.
> 
> {-# LANGUAGE CPP #-} has been supported for Hugs since last year,
> but only when building via Cabal.  That is, the Cabal library handles
> it for --hugs, but assumes the compilers will handle it themselves.

The GHC version allows a list of the extensions from
Language.Haskell.Extension to be given:

 {-# LANGUAGE CPP, ForeignFunctionInterface,
              MultiParamTypeClasses #-}

I'm not sure the commas are a good idea, but it's written this way in
the Cabal documentation.  It's not too late to change this.

Cheers,
	Simon