default: none
%.ppm: %.jpg
	jpegtopnm $< > $@
%.tif: %.ppm
	ppm2tiff -c none $< $@  # no compression on output!
%.txt: %.tif
	tesseract $< $*
%_bylaws.txt: %_bylaws_toc.txt
	cat $< > $@
	for number in i ii iii iv v vi vii viii ix \
	 x xi xii xiii xiv xv xvi xvii xviii xix xx; do \
	 [ -s $*_bylaws_art_$$number.txt ] && \
	 cat $*_bylaws_art_$$number.txt >> $@; done