settings_find question/problem

Hello,

I'm trying to port Irssix (native OS X GUI for irsssi) to RC4 and I 'm 
having a problem.  The settings_find method fails because it can't find 
term_charset.  When I try to connect to an irc server in the GUI.  
Here's the error:

command: [/connect "irc.freenode.net" "6667" ""]

** (process:23986): WARNING (recursed) **: 
settings_get_default_str(term_charset) : unknown setting
aborting...
Abort trap

What makes this odd is that the command line version of RC4 connects 
fine to servers.

Any suggestions on why this would be happening?  On OS X the locale 
command doesn't exist, so I would think that the term_charset setting 
would fail on the command line as well...

Thanks,

Adhamh