Thanks, Max.  I had seen that thread already, but I don&#39;t understand how it helps me.  I&#39;m on a x64 mac and I have both an i386 and x64 version of readline installed (via macports install readline +universal).  Perhaps cabal is choosing the wrong one.  How do I find out?  How do I tell it which to use?  And which do I want it to use?<div>
<br><div class="gmail_quote">On Wed, Jan 5, 2011 at 11:59 PM, Max Bolingbroke <span dir="ltr">&lt;<a href="mailto:batterseapower@hotmail.com">batterseapower@hotmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 6 January 2011 07:27, Joe Bruce &lt;<a href="mailto:bruce.joe.r@gmail.com">bruce.joe.r@gmail.com</a>&gt; wrote:<br>
&gt; Now I&#39;m stuck on readline again [lambdabot build step 28 of 81]:<br>
&gt; &quot;/Users/joe/.cabal/lib/readline-1.0.1.0/ghc-6.12.3/HSreadline-1.0.1.0.o:<br>
&gt; unknown symbol `_rl_basic_quote_characters&#39;&quot;<br>
<br>
</div>This seems to have been covered on Stack Overflow:<br>
<a href="http://stackoverflow.com/questions/1979612/using-cabal-readline-package-on-i386-macbook-snow-leopard" target="_blank">http://stackoverflow.com/questions/1979612/using-cabal-readline-package-on-i386-macbook-snow-leopard</a><br>

</blockquote></div><br></div>