[GHC] #4123: Control.Concurrent.MVar doesn't need to depend on the Prelude

[GHC]

#4123: Control.Concurrent.MVar doesn't need to depend on the Prelude
---------------------------------+------------------------------------------
    Reporter:  tibbe             |        Owner:                     
        Type:  bug               |       Status:  patch              
    Priority:  high              |    Milestone:  6.14.1             
   Component:  libraries/base    |      Version:  6.13               
    Keywords:                    |   Difficulty:                     
          Os:  Unknown/Multiple  |     Testcase:                     
Architecture:  Unknown/Multiple  |      Failure:  Building GHC failed
---------------------------------+------------------------------------------
Changes (by simonmar):

  * priority:  normal => high
  * milestone:  => 6.14.1


-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4123#comment:2>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler