GHCi on Mac OS X

[Wolfgang Thaller]

>> I know that I must install the readline library seperately;
>> can anybody tell me how to do this?
>
> It may be that you have the wrong version of the readline library
> installed.

Probably no version at all...

Go to
http://www.gnu.org/order/ftp.html
choose a mirror, download the sources for version 4.3.
Unpack it, and use the usual commands for building & installing GNU 
software:
./configure
make
sudo make install

If there are any problems, e-mail me (auf Deutsch).

Cheers,

Wolfgang Thaller