yap(1) on Linux
The text 1a8add238409, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it. The page shows this text now.
prolog interpreter and compiler
Flags it lists
-
-- -
-? -
-L -
-b -
-g -
-h -
-l -
-s -
-t -
-z