It would appear o/depend can't help with generated files.
@ -69,6 +69,10 @@ o/$(MODE)/tool/calc/%.com.dbg: \
$(APE)
@$(APELINK)
tool/calc/calc.c: \
o/tool/calc/calc.c.inc \
o/tool/calc/calc.h.inc
.PHONY: o/$(MODE)/tool/calc
o/$(MODE)/tool/calc: \
$(TOOL_CALC_BINS) \