When using ghc-6.6.x, with some packages, cabal-install tries to upgrade

#174: cabal-install tries to upgrade the base package ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install | Version: 1.2.2.0 Severity: normal | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.6 | Platform: Linux ----------------------------+----------------------------------------------- Comment (by guest): Replying to [ticket:174 duncan]: the base package to satisfy dependnecies. This is obviously impossible. The dependency resolution mechanism needs to be taught this fact. Here's what I tried: $ cabal install fastcgi Data/List.hs:18:1: lexical error at character 'i' $ cabal info fastcgi Requested: fastcgi -any Using: fastcgi-3000.0.0 Depends: base >=2.0, cgi >=3000.0.0 Options: Location: http://hackage.haskell.org/packages/archive/fastcgi/3000.0.0/fastcgi-3000.0.... Local: *Not downloaded Requested: base >=2.0 Installed: base-2.1.1 Requested: cgi >=3000.0.0 Using: cgi-3001.1.5.1 Depends: base >=3, old-time -any, old-locale -any, containers -any, base >=2&&<3, network >=2.0, parsec >=2.0, mtl >=1.0, xhtml >=3000.0.0 Options: Location: http://hackage.haskell.org/packages/archive/cgi/3001.1.5.1/cgi-3001.1.5.1.ta... Local: *Not downloaded Requested: base >=3 Using: base-3.0.0.0 Depends: Options: Location: http://hackage.haskell.org/packages/archive/base/3.0.0.0/base-3.0.0.0.tar.gz Local: /home/abram/.cabal/packages/hackage.haskell.org/base/3.0.0.0/base-3.0.0.0.tar.gz Requested: old-time -any Using: old-time-1.0.0.0 Depends: base -any, old-locale -any Options: Location: http://hackage.haskell.org/packages/archive/old- time/1.0.0.0/old-time-1.0.0.0.tar.gz Local: *Not downloaded Requested: base -any Installed: base-2.1.1 Requested: old-locale -any Using: old-locale-1.0.0.0 Depends: base -any Options: Location: http://hackage.haskell.org/packages/archive/old- locale/1.0.0.0/old-locale-1.0.0.0.tar.gz Local: *Not downloaded Requested: containers -any Using: containers-0.1.0.0 Depends: base -any, array -any Options: Location: http://hackage.haskell.org/packages/archive/containers/0.1.0.0/containers-0.... Local: *Not downloaded Requested: array -any Using: array-0.1.0.0 Depends: base -any Options: Location: http://hackage.haskell.org/packages/archive/array/0.1.0.0/array-0.1.0.0.tar.... Local: *Not downloaded Requested: base >=2&&<3 Installed: base-2.1.1 Requested: network >=2.0 Installed: network-2.1.0.0 Requested: parsec >=2.0 Installed: parsec-2.0 Requested: mtl >=1.0 Installed: mtl-1.1.0.0 Requested: xhtml >=3000.0.0 Using: xhtml-3000.0.2.1 Depends: base -any Options: Location: http://hackage.haskell.org/packages/archive/xhtml/3000.0.2.1/xhtml-3000.0.2.... Local: *Not downloaded These packages would be installed: base-3.0.0.0, old-locale-1.0.0.0, old-time-1.0.0.0, array-0.1.0.0, containers-0.1.0.0, xhtml-3000.0.2.1, cgi-3001.1.5.1, fastcgi-3000.0.0 -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/174#comment:1 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects

#174: cabal-install tries to upgrade the base package ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install | Version: 1.2.2.0 Severity: normal | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.6 | Platform: Linux ----------------------------+----------------------------------------------- Comment (by duncan): Replying to [comment:2 ross@soi.city.ac.uk]:

Maybe base-3.0.0.0 should be removed from HackageDB.

I don't think that is the problem. Look at the output of cabal info, it thinks cgi depends on two versions of the base lib. It's just flattening the configurations incorrectly. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/174#comment:3 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects

#174: cabal-install tries to upgrade the base package ----------------------------+----------------------------------------------- Reporter: duncan | Owner: Type: defect | Status: new Priority: normal | Milestone: Component: cabal-install | Version: 1.2.2.0 Severity: normal | Resolution: Keywords: | Difficulty: normal Ghcversion: 6.6 | Platform: Linux ----------------------------+----------------------------------------------- Comment (by ross@soi.city.ac.uk): I added base-3.0.0.0 because I hoped to build Hugs with released packages. However the package doesn't work for that purpose, so I've removed it. -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/174#comment:5 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects

#174: cabal-install tries to upgrade the base package ---------------------------------+------------------------------------------ Reporter: duncan | Owner: Type: defect | Status: closed Priority: normal | Milestone: Component: cabal-install tool | Version: 1.2.2.0 Severity: normal | Resolution: fixed Keywords: | Difficulty: normal Ghcversion: 6.6 | Platform: Linux ---------------------------------+------------------------------------------ Changes (by duncan): * status: new => closed * resolution: => fixed Comment: {{{ Wed May 21 16:37:00 BST 2008 Duncan Coutts * Hide any available base and ghc-prim packages from the dep resolver Previously if the base package was available on hackage then the dep resolver might try to upgrade it. Unfortunately that's almost certainly technically impossible at the moment. So now since the dep resolver does not see these available packages it cannot pick them. This should fix ticket #174. }}} -- Ticket URL: http://hackage.haskell.org/trac/hackage/ticket/174#comment:7 Hackage http://haskell.org/cabal/ Hackage: Cabal and related projects