[Haskell] macports, cabal, cabal-install difficulty

[Matthew Fairtlough]

Hello, I'm new to this list and to hackage/cabal/cabal-install and 
haskell on the mac generally.  I don't dare post on cabal-devel because 
I'm a newbie.

I came to this question because I haven't been able to install the unix 
package properly (some packages I want depend on it) but I've posted 
separately in haskell-cafe on that.
I've port version 1.9.2 and haskell-platform @2009.2.0.2 (devel, haskell)

My question: Is cabal currently out-of-the-box compatible with 
macports?  I seem to have problems with cabal-install, in particular the 
ld warning and the fact that cabal doesn't seem to know what version of 
cabal-install is installed.

bash-3.2# cabal info cabal
* Cabal            (library)
     Synopsis:      A framework for packaging Haskell software
     Latest version available: 1.10.0.0
     Latest version installed: 1.10.0.0

bash-3.2# cabal install cabal-install-0.8.2
Resolving dependencies...
Configuring cabal-install-0.8.2...
Preprocessing executables for cabal-install-0.8.2...
Building cabal-install-0.8.2...
....<lots of build information deleted>...
[40 of 40] Compiling Main             ( Main.hs, 
dist/build/cabal/cabal-tmp/Main.o )
Linking dist/build/cabal/cabal ...
ld: warning: -read_only_relocs cannot be used with x86_64
Installing executable(s) in /Users/matthew/.cabal/bin

bash-3.2# cabal info cabal-install
* cabal-install    (program)
     Synopsis:      The command-line interface for Cabal and Hackage.
     Latest version available: 0.8.2
     Latest version installed: [ Unknown ]

....and lots more:...

     Homepage:      http://www.haskell.org/cabal/
     Bug reports:   http://hackage.haskell.org/trac/hackage/
     Description:   The \'cabal\' command-line program simplifies the 
process of
                    managing Haskell software by automating the fetching,
                    configuration, compilation and installation of Haskell
                    libraries and programs.
     Category:      Distribution
     License:       BSD3
     Author:        Lemmih <lemmih at gmail.com>
                    Paolo Martini <paolo at nemail.it>
                    Bjorn Bringert <bjorn at bringert.net>
                    Isaac Potoczny-Jones <ijones at syntaxpolice.org>
                    Duncan Coutts <duncan at haskell.org>
     Maintainer:    cabal-devel at haskell.org
     Source repo:   http://darcs.haskell.org/cabal-install/
     Executables:   cabal
     Flags:         old-base, bytestring-in-base
     Dependencies:  unix >=1.0 && <2.5, Win32 ==2.*, bytestring >=0.9,
                    base <2.0 || >=3.0, base >=2.0 && <2.2, old-time >=1 
&& <1.1,
                    array >=0.1 && <0.4, containers >=0.1 && <0.4,
                    random >=1 && <1.1, pretty >=1 && <1.1,
                    directory >=1 && <1.1, process >=1 && <1.1, base >=3,
                    base <3, time ==1.1.*, zlib >=0.4 && <0.6,
                    HTTP >=4000.0.2 && <4001, network >=1 && <3, 
filepath >=1.0,
                    Cabal ==1.8.*, base >=2 && <5
     Cached:        Yes