--- src/VBox/Devices/PC/ipxe/Makefile.kmk.orig	2025-01-21 19:56:40.000000000 +0700
+++ src/VBox/Devices/PC/ipxe/Makefile.kmk	2025-01-23 00:47:50.818978000 +0700
@@ -45,7 +45,7 @@
 iPxeBiosBin_CLEAN    = \
 	$(iPxeBiosBin_0_OUTDIR)/iPxeBiosBin.c \
 
-if1of ($(KBUILD_TARGET).$(KBUILD_TARGET_ARCH), darwin.amd64 darwin.arm64 linux.arm64 os2.x86 solaris.amd64 win.amd64 win.arm64)
+if1of ($(KBUILD_TARGET).$(KBUILD_TARGET_ARCH), darwin.amd64 darwin.arm64 linux.arm64 os2.x86 solaris.amd64 win.amd64 win.arm64 linux.amd64 freebsd.amd64)
  $$(iPxeBiosBin_0_OUTDIR)/iPxeBiosBin.c: $(PATH_SUB_CURRENT)/iPxeBiosBin.rom $(VBOX_BIN2C) | $$(dir $$@)
 	$(call MSG_TOOL,bin2c,iPxeBiosBin,$<,$@)
 	$(QUIET)$(VBOX_BIN2C) -min 32 -max 56 -mask 0x1ff -export NetBiosBinary $< $@
@@ -131,7 +131,7 @@
 	-falign-loops=1 \
 	-Os \
 	-falign-functions=1 \
-	-mpreferred-stack-boundary=2 \
+	-mstack-alignment=2 \
 	-mregparm=3 \
 	-mrtd \
 	-freg-struct-return \
@@ -154,7 +154,7 @@
 	-falign-jumps=1 \
 	-falign-loops=1 \
 	-falign-functions=1 \
-	-mpreferred-stack-boundary=2 \
+	-mstack-alignment=2 \
 	-mregparm=3 \
 	-mrtd \
 	-freg-struct-return \