m4(1) on FreeBSD
The text a9b76a431f42, as FreeBSD 4.5-RELEASE, FreeBSD 4.4-RELEASE shipped it.
macro language processor
Flags it lists
-
-D -
-U
The text a9b76a431f42, as FreeBSD 4.5-RELEASE, FreeBSD 4.4-RELEASE shipped it.
macro language processor
-D
-U