[GHC] #4523: unix package does not check properly for sem_close

[GHC]

#4523: unix package does not check properly for sem_close
---------------------------------+------------------------------------------
    Reporter:  bos               |       Owner:                     
        Type:  bug               |      Status:  new                
    Priority:  normal            |   Component:  libraries/unix     
     Version:  7.0.1             |    Keywords:                     
    Testcase:                    |   Blockedby:                     
          Os:  Linux             |    Blocking:                     
Architecture:  Unknown/Multiple  |     Failure:  Building GHC failed
---------------------------------+------------------------------------------
Changes (by bos):

  * failure:  None/Unknown => Building GHC failed


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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4523#comment:1>
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