[Hackage] #230: setup haddock ignores LANGUAGE CPP pragma

[Hackage]

#230: setup haddock ignores LANGUAGE CPP pragma
----------------------------------+-----------------------------------------
  Reporter:  ross at soi.city.ac.uk  |        Owner:         
      Type:  defect               |       Status:  new    
  Priority:  normal               |    Milestone:         
 Component:  Cabal library        |      Version:  1.2.3.0
  Severity:  normal               |     Keywords:         
Difficulty:  normal               |   Ghcversion:  6.8.2  
  Platform:                       |  
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 `setup haddock` preprocesses sources with cpp if `CPP` is included in the
 `extensions` field, but not if a source file starts with
 {{{
 {-# LANGUAGE CPP #-}
 }}}
 This is confusing, because that works with `setup build`.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/230>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects