[GHC] #4198: waitForProcess fails with "Bad file descriptor"

[GHC]

#4198: waitForProcess fails with "Bad file descriptor"
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    Reporter:  yugr               |        Owner:                             
        Type:  bug                |       Status:  new                        
    Priority:  normal             |    Milestone:                             
   Component:  libraries/process  |      Version:  6.12.3                     
    Keywords:  waitForProcess     |   Difficulty:                             
          Os:  Windows            |     Testcase:                             
Architecture:  x86_64 (amd64)     |      Failure:  Incorrect result at runtime
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Comment(by simonmar):

 Did you compile with or without `-threaded`?

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4198#comment:3>
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