m4(1) on FreeBSD
The text bbee389ea8a6, as FreeBSD 3.5.1-RELEASE, FreeBSD 3.5-RELEASE shipped it.
macro language processor
Flags it lists
-
-D -
-U
The text bbee389ea8a6, as FreeBSD 3.5.1-RELEASE, FreeBSD 3.5-RELEASE shipped it.
macro language processor
-D
-U