This link was posted on the list:
It is in one of the docs.
From: Dave Horsfall
Sent: Thursday, 26 July 2018 02:24
To: The Eunuchs Hysterical Society
Subject: [TUHS] That tour through the C compiler...
My DuckDuckGo-fu appears to be on the blink (and I refuse to use Google
out of privacy concerns); is there a PDF/PS/groff somewhere? I don't use
fancy-wanky markup languages.