+.PHONY: Documentation/all
+Documentation/all: $(man_roff) $(man_html)
+
+Documentation/substvars: $(bup_deps)
+ echo "s,%BUP_VERSION%,$$(./bup version --tag),g" > $@
+ echo "s,%BUP_DATE%,$$(./bup version --date),g" >> $@
+
+Documentation/%.1: Documentation/%.md Documentation/substvars
+ $(pf); sed -f Documentation/substvars $< \
+ | $(PANDOC) -s -r markdown -w man -o $@
+
+Documentation/%.html: Documentation/%.md Documentation/substvars
+ $(pf); sed -f Documentation/substvars $< \
+ | $(PANDOC) -s -r markdown -w html -o $@
+
+.PHONY: Documentation/clean
+Documentation/clean:
+ cd Documentation && rm -f *~ .*~ *.[0-9] *.html substvars
+