shell not allocating tty on OS X

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I'm using the Carbon build of Emacs from 
http://mindlube.com/download/files/emacs-osx-10-25-03.dmg, and I'm having 
a bunch of problems with the shell.  I think that all of them can be 
traced to the fact that unlike other builds of emacs I've used, this one 
doesn't allocate a tty to the shell.

I'm suprised that I'm the only person running into this problem, but I've 
searched about everywhere I could think of and haven't turned up any 
suggestions.

Can anybody tell me how I can get emacs to allocate a tty for the shell?  
I'm comfortable modifying sources if necessary.

Thanks.

Andrew

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