This is a shelved port plan
Who is BMAKE:
BSD Make (pmake or bmake) which is derived from Adam de Boor's work on a version of Make capable of building targets in parallel, and survives with varying degrees of modification in FreeBSD, NetBSD and OpenBSD.[citation needed] Distinctively, it has conditionals and iterative loops which are applied at the parsing stage and may be used to conditionally and programmatically construct the makefile, including generation of targets at runtime.
bmake origin sources: http://www.crufty.net/ftp/pub/sjg/