> -----Original Message-----
> From: netbsd-users-owner@NetBSD.org 
> [mailto:netbsd-users-owner@NetBSD.org] On Behalf Of Robert Elz
> Sent: 21 January 2005 12:03
> To: Gary Parker
> Cc: netbsd-users@NetBSD.org
> Subject: Re: Some questions about CVS and keeping up-to-date
> 
> You need to do a "build world" (ie: compile everything) at least once.
> After that, when updates happen, you will normally be able to just
> recompile what has changed (but for that, you have to keep all the .o
> files hanging around).   That's likely to work well if you're just
> tracking netbsd-2-0 (the 2.0.x versions) - and will probably work for
> netbsd-2.   Occasionally however, changes happen in such a way that
> the build system needs everything discarded and a rebuild 
> from nothing.
> They shouldn't, and really indicate bugs in the Makefiles, but they
> do happen, sometimes.
> 
> kre

Thanks Robert...all very helpful stuff...

Gary