compiler bug report

[Simon Marlow]

Hi there,

Thanks for the report.  I can't repro the bug though - after I commented
out the definition of beginWithBy at the end of Util.hs (it had some
type errors), and tried the exact same sequence of commands in ghci, it
happily re-loaded Util.o at the end.

Is there any more information you can provide that will help us to repro
it?

Cheers,
	Simon

> Here is a transcript:
> ----------------
> enescu:/nfs/isd/hdaume/stat-sum-ulf 54% ghci -package lang
> ghci -package lang
>    ___         ___ _
>   / _ \ /\  /\/ __(_)
>  / /_\// /_/ / /  | |      GHC Interactive, version 5.00.2, 
> For Haskell
> 98.
> / /_\\/ __  / /___| |      http://www.haskell.org/ghc/
> \____/\/ /_/\____/|_|      Type :? for help.
> 
> Loading package std ... linking ... done.
> Loading package lang ... linking ... done.
> Prelude> :l Util
> :l Util
> Skipping  Util             ( Util.hs, ./Util.o )
> Ok, modules loaded: Util.
> Util> List.[]
> List.[]
> 
> Ambiguous type variable(s) `t' in the constraint `PrelShow.Show t'
> arising from use of `PrelIO.print' at <No locn>
> in a `do' expression pattern binding: PrelIO.print it
> Util> `eq`
> `eq`
> <no file>:0: parse error on input ``'
> Util> 3 `eq` 4
> 3 `eq` 4
> 
> <no file>:0: Variable not in scope: `eq'
> Util> :l Util
> :l Util
> unloadObj: can't find `./Util.o' to unload
> ghc-5.00.2: panic! (the `impossible' happened, GHC version 5.00.2):
>         unloadObj: failed
> 
> Please report it as a compiler bug to 
> glasgow-haskell-bugs at haskell.org,
> or http://sourceforge.net/projects/ghc/.
> 
> 
> Util> 
> -------------
> 
> I'm not sure exactly what went wrong, but here's a copy of Util.hs...
> 
> -- 
> Hal Daume III
> 
>  "Computer science is no more about computers    | hdaume at isi.edu
>   than astronomy is about telescopes." -Dijkstra | www.isi.edu/~hdaume
>