CVSUP and 5.2.1 RELEASE

[Randy Bush]

>> let me ask a different question.  what is the need for 'make world'?
> It is mentioned in approximately 22900 hits on google:

so is george bush, but i am hoping we don't keep him.

i meant my question seriously.  when should i use 'make world',
as opposed to the sequence to which i am used
  make buildworld
  make kernel
  boot -sw
  make installworld
  mergemaster
  reboot

randy