[GHC] #7470: Patch to enable GHC runtime system with thr_debug_p options...

[GHC]

#7470: Patch to enable GHC runtime system with thr_debug_p options...
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    Reporter:  MichalGajda        |       Owner:                  
        Type:  bug                |      Status:  new             
    Priority:  normal             |   Milestone:                  
   Component:  Build System       |     Version:  7.4.2           
    Keywords:  RTS, BuildOptions  |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple   |     Failure:  None/Unknown    
  Difficulty:  Unknown            |    Testcase:                  
   Blockedby:                     |    Blocking:                  
     Related:                     |  
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Changes (by simonmar):

  * difficulty:  => Unknown


Comment:

 I'm interested - why is `thr_debug_p` important for you?

 Note that `thr_debug` is already enabled, a few lines below your patch.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7470#comment:1>
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