[GHC] #1426: warning about `import Control.Monad.Fix` being unused when mdo is used

[GHC]

#1426: warning about `import Control.Monad.Fix` being unused when mdo is used
-----------------------------+----------------------------------------------
    Reporter:  Isaac Dupree  |        Owner:         
        Type:  bug           |       Status:  new    
    Priority:  normal        |    Milestone:         
   Component:  Compiler      |      Version:  6.6.1  
    Severity:  normal        |   Resolution:         
    Keywords:                |   Difficulty:  Unknown
          Os:  Unknown       |     Testcase:         
Architecture:  Unknown       |  
-----------------------------+----------------------------------------------
Comment (by Isaac Dupree):

 At one time it was believed that the import might help some
 implementations deal with mdo.  (In particular, a Haskell preprocessor
 that translates mdo would prefer not to have to bring mfix into scope
 itself.)

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1426>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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