On Sun, Sep 16, 2007 at 10:45:39PM +0200, Bas van Dijk wrote:
> On 9/16/07, Mads Lindstrøm <[EMAIL PROTECTED]> wrote:
> > But what if I want to "apply" the 'b' ? How do I do that ?
>
> The following uses type families (functions) and compiles under GHC HEAD:
>
> {-# OPTIONS_GHC -XTypeFamilies -XEmptyDataDecls -XTypeSynonymInstances #-}
Eek!
That should be:
{-# LANGUAGE TypeFamilies, EmptyDataDecls, TypeSynonymInstances #-}
Modulo the fact that only GHC support type families at the moment, the
latter will be portable...
(Ian/Simon: I've seen this several times now. Maybe there should be a
warning for -X in OPTIONS? Is that even feasable?)
Stefan
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