There's a Make rule to generate .cpp from .asm but the .cpp is included
in the source. Presumably the timestamps of these two files in the tmp
dir are different when Hydra is building, but not on my system. This
causes Make to try to rebuild .cpp, but the tools needed for that are missing.
BOSSA is a flash programming utility for Atmel's SAM family of flash-based ARM microcontrollers. The motivation behind
BOSSA is to create a simple, easy-to-use, open source utility to replace Atmel's SAM-BA software. BOSSA is an acronym
for Basic Open Source SAM-BA Application to reflect that goal.