all: squash.dvi squash.ps squash.ps.gz squash.pdf squash.txt

view: squash.pdf
	xpdf $< &

%.dvi: %.tex
	latex $<

%.ps: %.dvi
	dvips $< -o -t a4

%.pdf: %.tex
	pdflatex $<

%.txt: %.pdf
	pdftotext $<

%.gz: %
	gzip -c $< > $@