On 15 March 2011 08:24, Yitzchak Gale
I installed the 64-bit version of the recent Haskell Platform release on Mac OS X 10.6.6.
$ cabal --version cabal-install version 0.10.2 using version 1.10.1.0 of the Cabal library
As always in the past, and as cabal install itself has often suggested, the first thing I did was to run 'cabal install cabal-install' to make sure I have the latest version.
To my surprise, cabal install began installing an *older* version of itself, together with older versions of dependent libraries to support that.
This is because the "default" version of cabal-install on hackage remains at 0.8.x. As soon as I bump this to 0.10.x then all existing users will get prompted to upgrade. I'd like a bit of confidence that this will not break everyone's existing setup, so I've not done it yet.
Downloading time-1.1.4... <command line>: cannot satisfy -package Cabal-1.10.1.0: Cabal-1.10.1.0-6289829715de7a109def1f0c286a5dc4 is unusable due to missing or recursive dependencies: process-1.0.1.5-3e412eee765d141be15796c32f22f7a3
This is part of the problem that cabal does not understand that there can be two instances of the same version of a package registered at once. We will shortly be working on a new solver that does understand this. Duncan