diff --git a/make-includes/build_lecture_rules.make b/make-includes/build_lecture_rules.make
index 2e72e58..174f9eb 100755
--- a/make-includes/build_lecture_rules.make
+++ b/make-includes/build_lecture_rules.make
@@ -111,7 +111,7 @@
 #
 slides: $(SLIDES_PREREQS)
 
-$(SLIDES).pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS)
+$(SLIDES).pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS) $(SLIDE_FILES)
 	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{beamer}\input{$(SLIDES)}'
 	pdflatex --jobname=$(SLIDES) '\documentclass[$(LATEX_OPTS)]{beamer}\input{$(SLIDES)}'
 
@@ -135,7 +135,7 @@
 #
 slides-notes: slides-notes.pdf
 
-slides-notes.pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS)
+slides-notes.pdf: $(SLIDES).tex $(SLIDE_IMAGES) $(SLIDE_BACKGROUNDS) $(SLIDE_FILES)
 	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{beamer}\input{$(SLIDES)}'
 	pdflatex --jobname=slides-notes '\documentclass[$(LATEX_OPTS),notes=onlyslideswithnotes]{beamer}\input{$(SLIDES)}'
 
@@ -208,7 +208,7 @@
 
 figures: $(FIGURES).pdf
 
-$(FIGURES).pdf: $(FIGURES).tex $(FIG_IMAGES)
+$(FIGURES).pdf: $(FIGURES).tex $(FIG_IMAGES) $(FIG_FILES)
 	pdflatex $<
 	pdflatex $<
 
@@ -246,7 +246,9 @@
 	@echo "GLOBAL_HANDBOOK_INCLUDE = [$(GLOBAL_HANDBOOK_INCLUDE)]"
 	@echo "SLIDE_IMAGES = [$(SLIDE_IMAGES)]"
 	@echo "SLIDE_BACKGROUNDS = [$(SLIDE_BACKGROUNDS)]"
+	@echo "SLIDE_FILES = [$(SLIDE_FILES)]"
 	@echo "FIG_IMAGES = [$(FIG_IMAGES)]"
+	@echo "FIG_FILES = [$(FIG_FILES)]"
 	@echo "TIDY_FILES = [$(TIDY_FILES)]"
 	@echo "CLEAN_FILES = [$(CLEAN_FILES)]"
 	@echo "DRAFT = [$(DRAFT)]"
@@ -303,11 +305,26 @@
 	@echo "$(notdir $<): regenerate $(notdir $@)"
 	@exit 1
 #
+# Various bitmap types embedded in OmniGraffle. (We can't automate this.)
+#
+%.graffle: %.png
+	@echo "$(notdir $@): reinsert $(notdir $<)"
+	@exit 1
+
+%.graffle: %.jpg
+	@echo "$(notdir $@): reinsert $(notdir $<)"
+	@exit 1
+#
 # PNG from TIFF.
 #
 %.png: %.tif
 	convert "$<" $(IMGDIR)/$@
 #
+# PNG from PICT.
+#
+%.png: %.pict
+	convert "$<" $(IMGDIR)/$@
+#
 # PDF from Ploticus.
 #
 %.pdf: %.plo
@@ -322,4 +339,3 @@
 #
 %.pdf: %.eps
 	ps2eps --ignoreBB --nohires --loose < $< | ps2pdf -dEPSCrop - $(IMGDIR)/$@
-