I just installed Haskell from it's official site. After that, following it's quick-start tutorial.
I run:
cabal update
Which shows this message:
Downloading the latest package list from hackage.haskell.org
Note: there is a new version of cabal-install available.
To upgrade, run: cabal install cabal-install
I run:
cabal install cabal-install
and check if the update was successful with
cabal update
The result, it shows me the same message from the start:
Downloading the latest package list from hackage.haskell.org
Note: there is a new version of cabal-install available.
To upgrade, run: cabal install cabal-install
So, did I upgrade the cabal-install or not? How do I check my cabal's version?
Important: I'm using the 64 bits version for Mac OS X.
I had a similar issue after installing the Haskell platform 2012.4.0.0 on OSX. When I ran cabal install cabal-install, it ended with:
cabal: ../ghc-7.4.2/lib/cabal-install-1.16.0.2/bin/cabal: does not exist
So I guessed it got its paths mixed up somewhere. However the executable was actually built successfully (check for ~/Library/Haskell/ghc-7.4.2/lib/cabal-install-1.16.0.2/bin/cabal) and I just copied it from there to ~/Library/Haskell/bin which is on my path.
Thereafter everything ran OK:
$ which cabal
/Users/luke/Library/Haskell/bin/cabal
$ cabal update
Downloading the latest package list from hackage.haskell.org
$ cabal --version
cabal-install version 1.16.0.2
using version 1.16.0.3 of the Cabal library