Unfortunately, code formatters change their behaviour between versions.
The code currently requires astyle version 3.x, so check this before
running astyle. If the wrong version is installed, print an error.
+ @astyle --version | grep -q "Version 3" || (echo 'ERROR: astyle version 3 required!' 1>&2 && exit 1)
astyle --options=.astylerc -nQ *.c *.h
.PHONY: clean astyle
astyle --options=.astylerc -nQ *.c *.h
.PHONY: clean astyle