[Hackage] #820: cabal-install clobbers itself on multi-arch platforms

[Hackage]

#820: cabal-install clobbers itself on multi-arch platforms
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  Reporter:  bos                 |        Owner:         
      Type:  defect              |       Status:  new    
  Priority:  normal              |    Milestone:         
 Component:  cabal-install tool  |      Version:  1.8.0.6
  Severity:  normal              |     Keywords:         
Difficulty:  unknown             |   Ghcversion:         
  Platform:                      |  
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 On my Mac, I have 32-bit and 64-bit versions of GHC 7.0.2 installed, and
 cabal installs the object and interface files into the same directory.

 The {{{$arch}}} variable looks like it should do the right thing, but in
 fact it's expanded to whatever architecture cabal-install was built for,
 not the architecture that's supported by GHC itself.

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/820>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects