I'm trying to write a ruby extension which accesses the 
AddressBook.framework on OS X.  I can get the extension to compile but 
get undefined symbol errors for each of the AddressBook APIs when I 
load the extension.  It's pretty clear that it's not able to find the 
AddressBook library module, but I'm not quite sure how to tell it where 
to look.  Anyone have any experience with accessing OS X frameworks in 
this way?

Dave Craine
InfoEther