TGIFPICS := $(patsubst %.obj,%.eps,$(wildcard *.obj))
SVGPICS := $(patsubst %.svg,%.eps,$(wildcard *.svg))
EPSPICS = 

slides.pdf: $(TGIFPICS) $(SVGPICS) slides.tex
	pdflatex slides

%.eps: %.obj
	tgif -print -eps -reqcolor -gray $*

%.eps: %.svg
	inkscape --export-type=eps $<