--- src/VBox/Devices/PC/ipxe/Makefile.kmk.orig	2020-07-10 02:55:33.000000000 +1000
+++ src/VBox/Devices/PC/ipxe/Makefile.kmk	2020-08-22 12:06:18.150715000 +1000
@@ -35,7 +35,7 @@
 iPxeBiosBin_CLEAN    = \
 	$(iPxeBiosBin_0_OUTDIR)/iPxeBiosBin.c \
 
-if1of ($(KBUILD_TARGET), darwin os2 solaris win)
+if1of ($(KBUILD_TARGET), darwin bsdsunix freebsd os2 solaris win)
  $$(iPxeBiosBin_0_OUTDIR)/iPxeBiosBin.c: $(PATH_SUB_CURRENT)/iPxeBiosBin.rom $(VBOX_BIN2C) | $$(dir $$@)
 	$(call MSG_TOOL,bin2c,iPxeBiosBin,$<,$@)
 	$(QUIET)$(VBOX_BIN2C) -min 32 -max 56 -mask 0x1ff -export NetBiosBinary $< $@
@@ -106,7 +106,11 @@
 ifeq ($(KBUILD_TARGET), freebsd)
  TEMPLATE_iPxe_LDFLAGS += -m elf_i386_fbsd
 else
- TEMPLATE_iPxe_LDFLAGS += -m elf_i386
+ ifeq $(KBUILD_TARGET), bsdsunix)
+  TEMPLATE_iPxe_LDFLAGS += -m elf_i386_bsdsux
+ else
+  TEMPLATE_iPxe_LDFLAGS += -m elf_i386
+ endif
 endif
  TEMPLATE_iPxe_LNK_DEPS = $(VBOX_PATH_IPXE_SRC)/src/arch/i386/scripts/i386.lds
  TEMPLATE_iPxe_CFLAGS  = \