Parser error on {-# LANGUAGE - #-}

Create a single-line file x.hs with contents

{-# LANGUAGE -FlexibleInstances #-}

And run ghci x.hs.

GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. ghc: panic! (the 'impossible' happened)

(GHC version 6.10.4 for i386-unknown-linux):

getOptions'.parseLanguage(2) went past eof token

Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug

If the dash is removed, {-# LANGUAGE FlexibleInstances #-} the file parses properly.

Trac metadata

Trac field	Value
Version	6.10.4
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler (Parser)
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