[GHC] #1963: Pressing ^C at the right moment can trash GHC's package list

[GHC]

#1963: Pressing ^C at the right moment can trash GHC's package list
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 Reporter:  igloo     |          Owner:  igloo      
     Type:  merge     |         Status:  reopened   
 Priority:  normal    |      Milestone:  6.10 branch
Component:  Compiler  |        Version:  6.8.1      
 Severity:  normal    |     Resolution:             
 Keywords:            |     Difficulty:  Unknown    
 Testcase:            |   Architecture:  Unknown    
       Os:  Unknown   |  
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Comment (by igloo):

 `writeFileAtomic` sounds like it belongs in `base`, not `Cabal`.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1963#comment:6>
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