On 5 Oct 2000, Martin J. Laubach wrote:

>   - The Makefile will invoke 
> 
> 	if [ ! -e files ] ; then
> 		tar -C ../.. -x ../../bigtar.tar this/package
> 
>     and extract all the other files before doing anything else.

How do you know which packages you need to upgrade without looking
into the pkgsrc source files?