[GHC] #4205: Improve Threading Support for FreeBSD

[GHC]

#4205: Improve Threading Support for FreeBSD
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    Reporter:  pgj               |       Owner:                
        Type:  feature request   |      Status:  new           
    Priority:  normal            |   Component:  Runtime System
     Version:  6.13              |    Keywords:                
          Os:  FreeBSD           |    Testcase:                
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown  
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 Some functions are not implemented for FreeBSD which are required to run
 concurrent programs properly.  One of them is getting the number of CPUs
 on the given system -- this can be done in the same way as on Darwin
 systems (by using the sysctl(3) interface), and the other one is setting
 the affinity for threads -- it can be implemented by using the CPU set
 functions introduced in FreeBSD 7.1.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4205>
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