Cannot install readline on Mac OS X

[Yitzchak Gale]

After a recent upgrade of Mac OS X from Tiger to
Snow Leopard, I installed the Haskell Platform. I
installed genuine readline using MacPorts.

Now I cannot install the readline package,
due to the well-known problem that configure finds
the fake readline that comes with Mac OS X and
refuses to proceed.

I have tried the various solutions suggested in:

http://hackage.haskell.org/trac/ghc/ticket/3121
http://www.haskell.org/pipermail/libraries/2009-May/011595.html
http://hackage.haskell.org/trac/hackage/ticket/631

and various combinations of them. Nothing helped, the
same problem always occurred.

Any new ideas?

Thanks,
Yitz