[Buildroot] How to rebuild following .config change?

[Grant Edwards <grant.b.edwards@gmail.com>]

Several times in the past week, I've gotten things terminally
broken: where it's impossible to build after doing a "make
menuconfig" or "make uclibc-menuconfg" and changing a
configuration setting.

It appears that you can't reliably make a configuration change
and then do a "make".

Doing a "make clean" doesn't appear to be enough either, since
often a "make" still fails or doesn't rebuild certain things.

You can do a "distclean", but then all the sources get
re-downloaded and toolchains re-built -- which takes a _long_
time.

How does one re-build appropriate packages after a
configuration change.

-- 
Grant Edwards                   grante             Yow! If elected, Zippy
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