ghc-6.0: panic on a simple example
I've just installed ghc-6 and started to play with it.
I defined an infinite list of integers in the following
way:
-- increment a list of integer by one
incl :: [ Integer ] -> [ Integer ]
incl [] = []
incl (x:l) = (x+1:(incl l))
-- infinite list of integers
il = ( 1 : (incl il))
the list prints nicely, however ghc has problems with
this simple pattern-matching extraction of the first
element:
*Main> let (a:x) = il in a
ghc-6.0: panic! (the `impossible' happened, GHC version
6.0):
getLinkDeps No iface for [<pkg>]GHCziErr
Please report it as a compiler bug to
glasgow-haskell-bugs@haskell.org,
or http://sourceforge.net/projects/ghc/.
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