exam.pdf: exam.dvi
dvips -f < $< | ps2pdf - > $@
-exam.dvi: exam.tex first.tex second.tex third.tex
+exam.dvi: exam.tex first.tex second.tex third.tex img/1c.eps
latex $<
latex $<
+img/%.eps: img/%.dot
+ dot -Teps < $< > $@
+
clean:
$(RM) -v $(addprefix exam.,pdf aux log dvi)