[Hackage] #696: better error message for when /tmp is mounted noexec

[Hackage]

#696: better error message for when /tmp is mounted noexec
----------------------------+-----------------------------------------------
  Reporter:  duncan         |        Owner:         
      Type:  defect         |       Status:  new    
  Priority:  normal         |    Milestone:         
 Component:  Cabal library  |      Version:  1.6.0.3
  Severity:  normal         |     Keywords:         
Difficulty:  unknown        |   Ghcversion:         
  Platform:                 |  
----------------------------+-----------------------------------------------
 See also http://hackage.haskell.org/trac/ghc/ticket/4110

 If /tmp is mounted noexec then we get a poor error message when we fail to
 compile and execute `Setup`, or anything else like pre-processors or
 tests.

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/696>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects