+progress.png: stats.txt progress.gnuplot
+ awk '{print $$1, $$2, $$5, $$8}' < stats.txt > stats.csv
+ gnuplot progress.gnuplot
+ rm stats.csv
+
+# Have to disable --postvalid, when using xref with xrefstyle.
+# See <URL: http://bugs.debian.org/682944 > for the bug report.
+XMLLINTOPTS = --nonet --noout --xinclude --postvalid
+lint: freeculture.xml
+ xmllint $(XMLLINTOPTS) freeculture.xml
+
+lint.nb: freeculture.nb.xml
+ xmllint $(XMLLINTOPTS) freeculture.nb.xml
+
+images/cc.svg:
+ wget -O $@ http://upload.wikimedia.org/wikipedia/commons/9/97/CC_some_rights_reserved_new_2.svg