cows = $(patsubst Forts/fortune_%.md,Cows/cow-%.txt,$(wildcard Forts/fortune_*.md))

$(cows): Cows/cow-%.txt: Forts/fortune_%.md
	@mkdir -p $(@D)
	cat $< | cowsay > $@

progs += forts
progs += $(cows)
dross += Cows/