I don’t know who thought this was a good idea, but this is the output of a successful build for one of the examples in the libopencm3 project
karlp@tera:~/opencm3_f4$ make clean
karlp@tera:~/opencm3_f4$ make
karlp@tera:~/opencm3_f4$
Really? Realllly? Ok, concise output is good, but this is no output at all!
Probably the same people who think making a stdlib implementation that is GPL….