[GHC] #5167: New POSIX process group API

[GHC]

#5167: New POSIX process group API
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    Reporter:  Favonia           |       Owner:  Favonia          
        Type:  feature request   |      Status:  new              
    Priority:  normal            |   Component:  libraries/process
     Version:  7.0.3             |    Keywords:  process group    
    Testcase:                    |   Blockedby:                   
          Os:  Unknown/Multiple  |    Blocking:                   
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown     
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 API changes to Posix.Process in order to have two new features:

 1. A different type for POSIX process group ID from POSIX process ID

 2. Access to full power of POSIX process group API

 Please see the following page for more information:
 [http://www.haskell.org/haskellwiki/POSIX_process_group_API_reform_proposal
 POSIX process group API reform proposal]

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5167>
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