Does the Makefile even check to see whether a compiled map already exists before running? I didn't notice that it does. And to find out how much time it took, just type 'time make maps'. If you're running a multi core/processor setup you might also want to enable parallel compiles with 'make -j maps'. 'time make -j maps' does both at once, and if you want to be compiling maps and still be able to do things without having your computer as laggy as 1400 baud, prefix it with 'nice -n 10', to put it on a lower priority: 'nice -n 10 time make -j maps' if you're getting everything on your hotdog. Note that though you can pass both nice and time simultaneously, it's useless for benchmarking.