It goes into your make.conf along with the cxxflags, chost, etc...
You could take a look at the make.conf.example and just uncomment what you need. It has excellent remarks in it to help ya out too.
Have fun with gentoo, I just installed it a few days back and am loving it. Be prepared for when you emerge Xorg and KDE/Gnome (if you need it) because thats what really took HOURS
Last edited by justanothersteve; 01-30-2006 at 08:05 PM.