Subj : Re: Compiling and using SpiderMonkey with Mac OS X
To   : Heath Raftery <hraftery@myrealbox.com>
From : Brendan Eich <brendan@meer.net>
Date : Tue Jul 29 2003 10:34 pm

You shouldn't have to change any sources.  You need to define both 
XP_MAC and XP_UNIX for OS X, I believe.  Brian can speak with authority.

/be

.