all: $(addsuffix .png, $(basename $(wildcard *.dot))) $(addsuffix .pdf, $(basename $(wildcard *.dot))) $(addsuffix .svg, $(basename $(wildcard *.dot)))

# all:
# 	for dot in *.dot; do make $${dot%%.dot}.png; done
# 	for dot in *.dot; do make $${dot%%.dot}.pdf; done
# 	for dot in *.dot; do make $${dot%%.dot}.svg; done

clean:
	rm -f *.png *.pdf *.svg

%.png: %.dot
	dot -Tpng < $< > $@

%.jpg: %.dot
	dot -Tjpg < $< > $@

%.pdf: %.dot
	dot -Tpdf < $< > $@

%.svg: %.dot
	dot -Tsvg < $< > $@