m4(1) on OpenBSD
The text 4aeda9814202, as OpenBSD 5.3, OpenBSD 5.2, OpenBSD 5.1, OpenBSD 5.0, OpenBSD 4.9 shipped it.
macro language processor
Flags it lists
-
-D -
-I -
-P -
-U -
-d -
-g -
-o -
-s -
-t