[Hackage] #597: non-exhaustive patterns when trying to install base

Hackage cvs-ghc at haskell.org
Mon Apr 9 16:44:50 CEST 2012

#597: non-exhaustive patterns when trying to install base
  Reporter:  guest               |        Owner:                    
      Type:  defect              |       Status:  new               
  Priority:  normal              |    Milestone:  cabal-install-0.16
 Component:  cabal-install tool  |      Version:           
  Severity:  minor               |     Keywords:                    
Difficulty:  easy (<4 hours)     |   Ghcversion:  6.10.1            
  Platform:                      |  
Changes (by kosmikus):

  * milestone:  cabal-install-0.14 => cabal-install-0.16


 This is still present with the topdown solver, but the modular solver
 handles it ok:
 $ cabal install base-
 Resolving dependencies...
 cabal: Could not resolve dependencies:
 next goal: base (user goal)
 rejecting: base-, (global constraint requires ==
 rejecting: base- (only already installed instances can be used)
 rejecting: base-,,,,,,,,, (global constraint requires

 There's still an issue here to figure out a sensible way to specify non-
 upgradeable packages per compiler.

Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/597#comment:6>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects

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