[GHC] #2064: problems with duplicate modules

[GHC]

#2064: problems with duplicate modules
----------------------+-----------------------------------------------------
 Reporter:  Frederik  |          Owner:            
     Type:  bug       |         Status:  new       
 Priority:  normal    |      Milestone:  6.8 branch
Component:  Compiler  |        Version:  6.8.2     
 Severity:  normal    |     Resolution:            
 Keywords:            |     Difficulty:  Unknown   
 Testcase:            |   Architecture:  Unknown   
       Os:  Unknown   |  
----------------------+-----------------------------------------------------
Changes (by igloo):

  * difficulty:  => Unknown
  * milestone:  => 6.8 branch

Comment:

 I'm not sure when, if at all, GHC should check for things like this,
 especially if we allow a `package.conf.d` directory, so calling ghc-pkg
 isn't needed to register packages. I think the options are (in order of
 increasing paranoia):
  * Assume Cabal has done the checking for us, and don't do it ourselves
  * Check in ghc-pkg when (if) the package is registered
  * Check in GHC itself when we read the `package.conf`

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2064#comment:2>
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