different ways of building kernel

This pertains to -current.

Apart from the usual way (make buildkernel) there is also the other,
older way:

cd /usr/src/sys/$arch/conf
config KERNELNAME
cd ../../KERNELNAME && make cleandepend && make depend

If make depend is run in this way and *then*
cd /usr/src && make buildkernel

1. are the contents of ../../KERNELNAME used in the buildkernel step
2. if filemon & meta mode is enabled and loaded, are they used in the 'make depend'
    step above?

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