YL = $(basename $(wildcard *.yml))

all: $(addsuffix .pdf, $(YL))

PD = \
  -N -s -f markdown -t latex -H ../head.tex \
  -V classoption=a4paper

$(addsuffix .pdf, $(YL)): %.pdf: %.yml %.md
	cat < $*.md | sed -f ../pre.sed | sed -f drop.sed | \
	pandoc $(PD) --metadata-file=$*.yml -o $@