[Hackage] #405: cabal-install finds non-existent conflict due to picking base 3

[Hackage]

#405: cabal-install finds non-existent conflict due to picking base 3
---------------------------------+------------------------------------------
  Reporter:  dreixel             |        Owner:       
      Type:  defect              |       Status:  new  
  Priority:  normal              |    Milestone:       
 Component:  cabal-install tool  |      Version:  HEAD 
  Severity:  normal              |     Keywords:       
Difficulty:  normal              |   Ghcversion:  6.8.3
  Platform:                      |  
---------------------------------+------------------------------------------
 While creating a new package syb-0.2 (which supersedes syb-0.1), we have
 in the .cabal file:

 {{{
 build-depends:          base >= 4.0
 }}}

 'cabal configure -v' outputs:

 {{{
 (...)
 Configuring syb-0.2...
 Dependency base >=4.0: using base-4.0.0.0
 Dependency mtl >=1.1.0.2: using mtl-1.1.0.2
 Using Cabal-1.6.0.1 compiled by ghc-6.10
 (...)
 }}}

 'cabal install -v' outputs:

 {{{
 (...)
 Reading available packages...
 Resolving dependencies...
 selecting syb-0.2 (hackage) and discarding mtl-1.0, 1.1.0.0 and 1.1.0.1
 selecting mtl-1.1.0.2 (installed or hackage)
 selecting
 cabal: dependencies conflict: base-3.0.3.0 requires syb ==0.1.0.0 however
 syb-0.1.0.0 was excluded because syb-0.2 was selected instead
 syb-0.1.0.0 was excluded because of the top level dependency syb ==0.2
 }}}

 However, 'runghc Setup.hs install' proceeds without problems.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/405>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects