In article <pnq760lia7gr01nur2rin3dgcm4umsdk7h / 4ax.com>,
gabriele renzi  <surrender_it / remove.yahoo.it> wrote:
>il Thu, 25 Mar 2004 20:02:22 -0700, "Ara.T.Howard"
><ahoward / fattire.ngdc.noaa.gov> ha scritto::
>
>>On 26 Mar 2004, Phil Tomson wrote:
>>
>>> How do you get the up arrow to give prior commands in irb on OSX?
>>> 
>>> When I try to use the up arrow I just get garbage characters...
>>
>>you need to compile with readline.  probably readline is not installed or was
>>not found when you installed.  this should be in the config logs if you
>>look...
>>
>
>sidenote: I'm a windows user (ok, blame me ) and I think that irb has
>support for up-arrow even without readline (but no completion). It
>sounds strange that on *nix this does not work :/

Generally it does work.  On my Linux box it works fine.

It might well work with the Ruby 1.6.8 that comes out of the box with 
Panther, but I've gotten 1.8.1 from DarwinPorts.

Phil