freebsd-7.0-release AMD cvsup question

[John .]

Hi,

When getting sources through cvsup, my cvsup file has a line like this:

*default  tag=RELENG_7_0

Do I have to do anything special with this because I want the stuff for amd64?

Also, when building, I go into /usr/src and buildworld like usual. Do
I *require* lines in make.conf to take advantage of the architecture?

(been with freebsd for a while, but this is my first 64-bit build)

cheers
-- 
John