Erik Schnetter writes:
> 
> I recently received the following error message from ghc 3.00 on
> Linux-86:
> 
> /home/erik/ghc-3.00/bin/ghc -fglasgow-exts -H16M -c Parser.hs
> 
> panic! (the `impossible' happened):
>       unifyKinds: length mis-match
> 

Hi,

thanks for the report - this bug has been fixed in 3.01. Here's what
it will tell you when it is fed Parser.hs:
 
Parser.hs:84:
    Class `StateMonad' should have 2 arguments, but has been given 1
    In the context `(StateMonad p)'
    In the class declaration for `ParserC'

--Sigbjorn

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