--- kBuild/header.kmk.orig	2017-11-28 16:27:32.000000000 -0500
+++ kBuild/header.kmk	2018-11-07 02:35:39.215179000 -0500
@@ -196,7 +196,7 @@
 # this keyword namespace is shared between OSes, architectures, cpus and
 # build types. (PORTME)
 #
-KBUILD_OSES      := darwin dos dragonfly freebsd gnuhurd gnukfbsd gnuknbsd haiku l4 linux netbsd nt openbsd os2 solaris win os-agnostic
+KBUILD_OSES      := darwin dos dragonfly bsdsunix freebsd gnuhurd gnukfbsd gnuknbsd haiku l4 linux netbsd nt openbsd os2 solaris win os-agnostic
 KBUILD_ARCHES    := x86 amd64 noarch alpha arm32 arm64 hppa32 hppa64 ia64 m68k mips32 mips64 ppc32 ppc64 s390 s390x sh32 sh64 sparc32 sparc64 x32
 KBUILD_ARCHES_64 := amd64 alpha arm64 hppa64 ia64 mips64 ppc64 s390x sh64 sparc64 x32
 KBUILD_ARCHES_32 := x86 arm32 hppa32 m68k mips32 ppc32 s390 sh32 sparc32
@@ -209,6 +209,8 @@
 #
 KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.darwin.x86      = i?86-apple-darwin*
 KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.darwin.amd64    = x86_64-apple-darwin* amd64-apple-darwin*
+KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.bsdsunix.x86    = i?86-*bsdsunix*
+KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.bsdsunix.amd64  = x86_64-*bsdsunix* amd64-*bsdsunix*
 KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.freebsd.x86     = i?86-*freebsd*
 KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.freebsd.amd64   = x86_64-*freebsd* amd64-*freebsd*
 KBUILD_OSARCH_2_GNU_SYSTEM_TYPES.linux.x86       = i?86-*linux-gnu
@@ -602,7 +604,7 @@
 HOSTSUFF_EXE        := .exe
 HOST_PATH_SEP       := $(SEMICOLON)
 
-else if1of ($(KBUILD_HOST), dragonfly freebsd gnukfbsd gnuknbsd linux openbsd netbsd)
+else if1of ($(KBUILD_HOST), dragonfly bsdsunix freebsd gnukfbsd gnuknbsd linux openbsd netbsd)
 # Unix (like) systems with wine.
 EXEC_X86_WIN32      := wine
 HOSTSUFF_EXE        :=
@@ -648,7 +650,7 @@
 SUFF_LIB    := .a
 SUFF_DLL    := .so
 SUFF_EXE    :=
- if1of ($(KBUILD_TARGET), dragonfly freebsd gnukfbsd gnuknbsd linux netbsd openbsd) ## @todo check netbsd, gnuknbsd and openbsd.
+ if1of ($(KBUILD_TARGET), dragonfly bsdsunix freebsd gnukfbsd gnuknbsd linux netbsd openbsd) ## @todo check netbsd, gnuknbsd and openbsd.
 SUFF_SYS    := .ko
  else
 SUFF_SYS    :=
@@ -1382,7 +1384,7 @@
 	/Developer/usr/
  KBUILD_LIB_SEARCH_SUBS  := lib/
 
-else if1of ($(KBUILD_TARGET), freebsd openbsd dragonfly)
+else if1of ($(KBUILD_TARGET), bsdsunix freebsd openbsd dragonfly)
  KBUILD_LIB_SEARCH_ROOTS := \
 	/ \
 	/usr/ \