make(1) on OpenBSD
The text a1d9d6096d5c, as OpenBSD 5.3 shipped it.
maintain program dependencies
Flags it lists
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-B -
-D -
-I -
-S -
-V -
-d -
-e -
-f -
-i -
-j -
-k -
-m -
-n -
-p -
-q -
-r -
-s -
-t