From http://www.jwz.org/xscreensaver/xscreensaver-5.40.tar.gz
[xscreensaver] / README.hacking
2017-12-22 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.38.tar.gz
2016-10-24 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.36.tar.gz master2
2015-07-02 Zygo BlaxellFrom jwz.org/xscreensaver/xscreensaver-5.33.tar.gz
2013-02-08 Zygo Blaxellwww.jwz.org/xscreensaver/xscreensaver-5.13.tar.gz
2013-02-08 Zygo Blaxellwww.jwz.org/xscreensaver/xscreensaver-5.10.tar.gz
2013-02-08 Zygo Blaxellwww.jwz.org/xscreensaver/xscreensaver-5.07.tar.gz
2013-02-08 Zygo Blaxelltienza.es/crux/src/www.jwz.org/xscreensaver/xscreensave...
2013-02-08 Zygo Blaxelltienza.es/crux/src/www.jwz.org/xscreensaver/xscreensave...
2013-02-08 Zygo Blaxellslackware.bholcomb.com/slackware/slackware-11.0/source...