.SUFFIXES: .obj .eps .png

.obj.png:
	tgif -print -png $<

.obj.eps:
	tgif -print -eps -color $<

.png.eps:
	pngtopnm $< |pnmtops -noturn >$@

IMAGES = class_diagram.png communication.png edit_focus.png scroll.png

all: $(IMAGES)

clean:
	rm -f *.aux *.log *.dvi
	rm -f $(IMAGES)