All current examples use 'make -Bnd ...', but the tool actually works fine without the '-B' flag. In fact, using '-B' can be counterproductive when the main Makefile includes other Makefiles for which rules exist (i.e., when files are generated internally rather than being standalone external ones).
It would be helpful if the documentation included examples without '-B' to illustrate typical use cases where the tool performs best with special scenarios.