bug in 6.8.1-candidate

[Serge D. Mechveliani]

Dear GHC developers,

I am preparing a bug report for the compiler of  ghc-6.8.0.20070928-src:

------------------
GBasFld_.hs:387:45: Warning: Defined but not used: `t'
ghc-6.8.0.20070928: panic! (the 'impossible' happened)
  (GHC version 6.8.0.20070928 for i386-unknown-linux):
        initC: srt_lbl

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

This happens in the middle of the DoCon-2.11 `make'.
Can you wait with  ghc-6.8.1 ?

Another point:  
the module  Char_  exports several instances, 
and the module  DPrelude  has  `module Char_'  in its export list,
and   ghc-6.8.0.20070928-src  reports that this latter decl 
"exports nothing". 
Probably, it must report 
  "exports nothing, besides maybe, some instances"
?

Regards,

-----------------
Serge Mechveliani
mechvel at botik.ru