.POSIX:
.SUFFIXES: .tex .pdf

PDFS = mm1.pdf

PDFLATEX = pdflatex
BIBER = biber

all: $(PDFS)

$(PDFS): sources.bib

clean:
	rm -f *.bbl *.blg *.log *.aux *.pdf *.run.xml *.bcf *.out

.tex.pdf:
	$(PDFLATEX) $<
	$(BIBER) $*
	$(PDFLATEX) $<
	$(PDFLATEX) $<

mm1.pdf: yang.jpg

yang.jpg:
	curl -o yang.jpg "https://upload.wikimedia.org/wikipedia/commons/7/7f/Yang-single_%28restoration%29.jpg"