make continent

[Jonathan]

Hi all,

Yes, a rather strange subject I grant you, but...

Having been using FreeBSD for a fair few years now, I quite happily do a 
buildworld every now and then but one of the mysteries for me is how to 
rebuild parts of the OS in isolation.

My only interest in this is when a security update comes out and it 
might only affect a certain part of the source tree.

I appreciate that in the BSD model, the idea is that a widget can get 
changed and making world will allow the new features of that widget to 
permeate to all code, but is there any information on how to go into the 
various "continents" and build those on their own?

- J