[Hackage] #179: support GHC's main-is extension

[Hackage]

#179: support GHC's main-is extension
----------------------------+-----------------------------------------------
  Reporter:  duncan         |        Owner:         
      Type:  enhancement    |       Status:  new    
  Priority:  low            |    Milestone:  _|_    
 Component:  Cabal library  |      Version:  1.2.2.0
  Severity:  normal         |     Keywords:         
Difficulty:  normal         |   Ghcversion:  6.4.2  
  Platform:  Linux          |  
----------------------------+-----------------------------------------------

Comment(by mcandre):

 It turns out scriptedmain.o must be deleted in order for test.hs to
 compile.

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/179#comment:10>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects