Index: /trunk/src/VBox/ValidationKit/bootsectors/Config.kmk
===================================================================
--- /trunk/src/VBox/ValidationKit/bootsectors/Config.kmk	(revision 59783)
+++ /trunk/src/VBox/ValidationKit/bootsectors/Config.kmk	(revision 59784)
@@ -86,5 +86,8 @@
 		-M -MP
 endef
-
+if "$(KBUILD_HOST)" == "darwin" \
+ || "$(VBOX_NASM_allow_64_bit)" != ""
+ BS3KIT_NASM_allow_64_bit = --allow-64-bit
+endif
 
 #
@@ -328,5 +331,5 @@
 TEMPLATE_VBoxBS3KitImg_MODE         = 0644
 TEMPLATE_VBoxBS3KitImg_ASTOOL       = VBoxNasm
-TEMPLATE_VBoxBS3KitImg_ASFLAGS      = -f obj -g --allow-64bit-code-anywhere -w+orphan-labels
+TEMPLATE_VBoxBS3KitImg_ASFLAGS      = -f obj -g $(BS3KIT_NASM_allow_64_bit) -w+orphan-labels
 TEMPLATE_VBoxBS3KitImg_ASDEFS       = ASM_FORMAT_OMF RT_NOINC_SEGMENTS __NASM__
 TEMPLATE_VBoxBS3KitImg_DEFS         = ARCH_BITS=16 IN_BS3KIT
@@ -436,5 +439,5 @@
 TEMPLATE_VBoxBS3KitImg32_INSTTYPE     = none
 TEMPLATE_VBoxBS3KitImg32_ASTOOL       = VBoxNasm
-TEMPLATE_VBoxBS3KitImg32_ASFLAGS      = -f obj -g --allow-64bit-code-anywhere -w+orphan-labels
+TEMPLATE_VBoxBS3KitImg32_ASFLAGS      = -f obj -g $(BS3KIT_NASM_allow_64_bit) -w+orphan-labels
 TEMPLATE_VBoxBS3KitImg32_ASDEFS       = ASM_FORMAT_OMF RT_NOINC_SEGMENTS __NASM__
 TEMPLATE_VBoxBS3KitImg32_DEFS         = ARCH_BITS=32 IN_BS3KIT
@@ -456,5 +459,5 @@
 TEMPLATE_VBoxBS3KitImg64_INSTTYPE     = none
 TEMPLATE_VBoxBS3KitImg64_ASTOOL       = VBoxNasm
-TEMPLATE_VBoxBS3KitImg64_ASFLAGS      = -f obj -g --allow-64bit-code-anywhere -w+orphan-labels
+TEMPLATE_VBoxBS3KitImg64_ASFLAGS      = -f obj -g $(BS3KIT_NASM_allow_64_bit) -w+orphan-labels
 TEMPLATE_VBoxBS3KitImg64_ASDEFS       = ASM_FORMAT_OMF RT_NOINC_SEGMENTS __NASM__
 TEMPLATE_VBoxBS3KitImg64_DEFS         = IN_BS3KIT ARCH_BITS=64