[GHC] #7531: after manualy installing array-0.4.0.1

[GHC]

#7531: after manualy installing array-0.4.0.1
-------------------------------+--------------------------------------------
    Reporter:  guest           |       Owner:              
        Type:  bug             |      Status:  new         
    Priority:  normal          |   Milestone:              
   Component:  Package system  |     Version:  7.6.1       
    Keywords:                  |          Os:  Windows     
Architecture:  x86_64 (amd64)  |     Failure:  None/Unknown
  Difficulty:  Unknown         |    Testcase:              
   Blockedby:                  |    Blocking:              
     Related:                  |  
-------------------------------+--------------------------------------------
Changes (by igloo):

  * difficulty:  => Unknown


Old description:

> After manually installing array-0.4.0.1 installation manually of Cabal
> -1.16.0.3 print:
> c:\download\archive\Cabal\1.16.0.3\Cabal-1.16.0.3>runghc Setup.hs install
> ghc: panic! (the 'impossible' happened)
>   (GHC version 7.4.2 for i386-unknown-mingw32):
>         interactiveUI:setBuffering2
>
> Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

New description:

 After manually installing array-0.4.0.1 installation manually of Cabal
 -1.16.0.3 print:
 {{{
 c:\download\archive\Cabal\1.16.0.3\Cabal-1.16.0.3>runghc Setup.hs install
 ghc: panic! (the 'impossible' happened)
   (GHC version 7.4.2 for i386-unknown-mingw32):
         interactiveUI:setBuffering2

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

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7531#comment:3>
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