[GHC] #2782: Data instance for ratio changed, now incompatible

[GHC]

#2782: Data instance for ratio changed, now incompatible
------------------------------+---------------------------------------------
 Reporter:  NeilMitchell      |          Owner:                  
     Type:  bug               |         Status:  closed          
 Priority:  normal            |      Milestone:                  
Component:  libraries/base    |        Version:  6.10.1          
 Severity:  normal            |     Resolution:  fixed           
 Keywords:                    |     Difficulty:  Unknown         
 Testcase:                    |   Architecture:  Unknown/Multiple
       Os:  Unknown/Multiple  |  
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Changes (by igloo):

  * component:  Compiler => libraries/base
  * difficulty:  => Unknown
  * status:  new => closed
  * resolution:  => fixed

Comment:

 I've changed the `undefined` as you suggest. If you want the actual
 behaviour changed, then can you please file a proposal?
 http://www.haskell.org/haskellwiki/Library_submissions

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2782#comment:3>
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