time cat /dev/urandom | head -c 100000 | iconv -f latin1 -t utf-8 | $(PROG) >/dev/null; done
_site/spec.html: spec.txt
(echo "% CommonMark Spec\n";\
for vers in $(shell cd _site; ls -d -1 0.* | sort -r -g) ; do \
if [ "$$vers"!= "$(SPECVERSION)"]; then \
perl -p -i -e 's/<div id="watermark">.*?<\/div>/<div id="watermark" style="background-color:black">This is an older version of the spec. For the most recent version, see <a href="http:\/\/spec.commonmark.org">http:\/\/spec.commonmark.org<\/a>.<\/div>/' _site/$$vers/index.html ; \