ubuntu@ubuntu:~/opendps$ make -C libopencm3/
make: Entering directory '/home/ubuntu/opendps/libopencm3'
  GENHDR  include/libopencm3/vf6xx/irq.json
  GENHDR  include/libopencm3/stm32/l4/irq.json
  GENHDR  include/libopencm3/stm32/l1/irq.json
  GENHDR  include/libopencm3/stm32/l0/irq.json
  GENHDR  include/libopencm3/stm32/f7/irq.json
  GENHDR  include/libopencm3/stm32/f4/irq.json
  GENHDR  include/libopencm3/stm32/f3/irq.json
  GENHDR  include/libopencm3/stm32/f2/irq.json
  GENHDR  include/libopencm3/stm32/f1/irq.json
  GENHDR  include/libopencm3/stm32/f0/irq.json
  GENHDR  include/libopencm3/sam/d/irq.json
  GENHDR  include/libopencm3/sam/3x/irq.json
  GENHDR  include/libopencm3/sam/3u/irq.json
  GENHDR  include/libopencm3/sam/3s/irq.json
  GENHDR  include/libopencm3/sam/3n/irq.json
  GENHDR  include/libopencm3/sam/3a/irq.json
  GENHDR  include/libopencm3/lpc43xx/m4/irq.json
  GENHDR  include/libopencm3/lpc43xx/m0/irq.json
  GENHDR  include/libopencm3/lpc17xx/irq.json
  GENHDR  include/libopencm3/lpc13xx/irq.json
  GENHDR  include/libopencm3/lm3s/irq.json
  GENHDR  include/libopencm3/efm32/tg/irq.json
  GENHDR  include/libopencm3/efm32/lg/irq.json
  GENHDR  include/libopencm3/efm32/gg/irq.json
  GENHDR  include/libopencm3/efm32/g/irq.json
  BUILD   lib/stm32/f0
  CC      flash.c
make[1]: arm-none-eabi-gcc: Command not found
../../Makefile.include:44: recipe for target 'flash.o' failed
make[1]: *** [flash.o] Error 127
Makefile:63: recipe for target 'lib/stm32/f0' failed
make: *** [lib/stm32/f0] Error 2
make: Leaving directory '/home/ubuntu/opendps/libopencm3'
ubuntu@ubuntu:~/opendps$