How to build a single package for specific configuration ?

Hi,

I am trying to rebuild a single package for my
configuration using the command:

./scripts/Build-Pkg -cfg MYCFG -root auto busybox

But the package is installed in the root of my
host system (actually it makes a mess because
all symlinks of busybox are installed in my
system)

How do I specify for the package to be installed
in the root of the build of my configuration ?


Regards,
Claudio