[Hackage] #397: make cabal --cabal-lib-version="" take a dependency or a specific number

[Hackage]

#397: make cabal --cabal-lib-version="" take a dependency or a specific number
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  Reporter:  duncan              |        Owner:         
      Type:  enhancement         |       Status:  new    
  Priority:  low                 |    Milestone:         
 Component:  cabal-install tool  |      Version:  1.2.3.0
  Severity:  minor               |     Keywords:         
Difficulty:  normal              |   Ghcversion:  6.8.3  
  Platform:                      |  
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 The `--cabal-lib-version=` flag currently takes a specific version number.
 It could easily be like `--constraint=` or like `cabal install "foo < 2"`
 and take a dependency or a specific version number.

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Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/397>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects