[Hackage] #209: Implement "package()" configurations predicate

[Hackage]

#209: Implement "package()" configurations predicate
----------------------------+-----------------------------------------------
  Reporter:  duncan         |        Owner:  nominolo      
      Type:  enhancement    |       Status:  new           
  Priority:  normal         |    Milestone:  Cabal-1.4     
 Component:  Cabal library  |      Version:  1.2.3.0       
  Severity:  normal         |   Resolution:                
  Keywords:                 |   Difficulty:  hard (< 1 day)
Ghcversion:  6.8.2          |     Platform:                
----------------------------+-----------------------------------------------
Comment (by ross at soi.city.ac.uk):

 Another variant would be to support anonymous flags directly, allowing a
 syntax like:
 {{{
 library
   if _
     build-depends: base >= 3, containers
   else
     build-depends: base < 3
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/209#comment:3>
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