make buildword problem/documentation

[Jim Stapleton]

First of all, where do I find "make buildworld" documentation? It's
mantioned a lot, but I can't find it in the handbook. I'm assuming the
process is just "make buildworld", "make installworld", and that's it,
which will update all the non-ports core software packages on a
machine, but not the kernel itself.

The second part is, when I have this in my make.conf file,
uncommented, make buildworld fails, when it is commented, make
buildworld works fine (when it fails, it complains about not being
able to find/load various header files):
#CFLAGS=-finline-functions -msse -msse2 -msse3 -m3dnow -mfpmath=sse
#CXXFLAGS=-finline-functions -msse -msse2 -msse3 -m3dnow -mfpmath=sse


thanks,
-Jim Stapleton