+
+%.pdf: %.xml
+ xmlto pdf $<
+
+# special formatting rules
+tutorial.html : %.html : %.txt
+ $(ASCIIDOC) -b xhtml11 -d article -f tutorial.conf $(ASCIIDOC_EXTRA) $<
+tutorial.xml : %.xml : %.txt
+ $(ASCIIDOC) -b docbook -d article -f tutorial.conf $<