--- a/sys/boot/i386/Makefile.inc	
+++ a/sys/boot/i386/Makefile.inc	
@@ -3,6 +3,7 @@ 
 # $FreeBSD: release/9.0.0/sys/boot/i386/Makefile.inc 224131 2011-07-17 13:50:21Z dim $
 
 BINDIR?=	/boot
+CC_AS_LD?=	no
 
 LOADER_ADDRESS?=0x200000
 CFLAGS+=	-ffreestanding -mpreferred-stack-boundary=2 \
@@ -12,7 +13,11 @@ LDFLAGS+=	-nostdlib
 .if ${MACHINE_CPUARCH} == "amd64"
 CFLAGS+=	-m32 -march=i386
 ACFLAGS+=	-m32
+.if ${CC_AS_LD} == "yes"
+LDFLAGS+=	-Wl,-m,elf_i386_fbsd
+.else
 LDFLAGS+=	-m elf_i386_fbsd
+.endif
 AFLAGS+=	--32
 .endif
 
--- a/sys/boot/i386/boot0/Makefile	
+++ a/sys/boot/i386/boot0/Makefile	
@@ -5,6 +5,7 @@ STRIP=
 BINMODE=${NOBINMODE}
 NO_MAN=
 SRCS=	${PROG}.S
+CC_AS_LD=yes
 
 # Additional options that you can specify with make OPTS="..."
 # (these only apply to boot0.S)
--- a/sys/boot/i386/btx/btx/Makefile	
+++ a/sys/boot/i386/btx/btx/Makefile	
@@ -4,6 +4,7 @@ PROG=	btx
 INTERNALPROG=
 NO_MAN=
 SRCS=	btx.S
+CC_AS_LD=yes
 
 .if defined(BOOT_BTX_NOHANG)
 BOOT_BTX_FLAGS=0x1
--- a/sys/boot/i386/btx/btxldr/Makefile	
+++ a/sys/boot/i386/btx/btxldr/Makefile	
@@ -4,6 +4,7 @@ PROG=	btxldr
 INTERNALPROG=
 NO_MAN=
 SRCS=	btxldr.S
+CC_AS_LD=yes
 
 CFLAGS+=-DLOADER_ADDRESS=${LOADER_ADDRESS}
 
--- a/sys/boot/i386/btx/lib/Makefile	
+++ a/sys/boot/i386/btx/lib/Makefile	
@@ -5,5 +5,6 @@ INTERNALPROG=
 NO_MAN=
 SRCS=	btxcsu.s btxsys.s btxv86.s
 LDFLAGS=-Wl,-r
+CC_AS_LD=yes
 
 .include <bsd.prog.mk>
--- a/sys/boot/i386/cdboot/Makefile	
+++ a/sys/boot/i386/cdboot/Makefile	
@@ -5,6 +5,7 @@ STRIP=
 BINMODE=${NOBINMODE}
 NO_MAN=
 SRCS=	${PROG}.s
+CC_AS_LD=yes
 
 ORG=	0x7c00
 
--- a/sys/boot/i386/mbr/Makefile	
+++ a/sys/boot/i386/mbr/Makefile	
@@ -5,6 +5,7 @@ STRIP=
 BINMODE=${NOBINMODE}
 NO_MAN=
 SRCS=	${PROG}.s
+CC_AS_LD=yes
 
 # MBR flags: 0x80 -- try packet interface (also known as EDD or LBA)
 BOOT_MBR_FLAGS?=	0x80
--- a/sys/boot/i386/pmbr/Makefile	
+++ a/sys/boot/i386/pmbr/Makefile	
@@ -5,6 +5,7 @@ STRIP=
 BINMODE=${NOBINMODE}
 NO_MAN=
 SRCS=	${PROG}.s
+CC_AS_LD=yes
 
 ORG=	0x600
 
--- a/sys/boot/i386/pxeldr/Makefile	
+++ a/sys/boot/i386/pxeldr/Makefile	
@@ -9,6 +9,7 @@ FILES=	${BOOT}
 MAN=	${BOOT}.8
 SRCS=	${LDR}.S
 CLEANFILES= ${BOOT}
+CC_AS_LD=yes
 
 BOOT=	pxeboot
 LDR=	pxeldr
--- a/sys/boot/pc98/btx/btx/Makefile	
+++ a/sys/boot/pc98/btx/btx/Makefile	
@@ -4,6 +4,7 @@ PROG=	btx
 INTERNALPROG=
 NO_MAN=
 SRCS=	btx.S
+CC_AS_LD=yes
 
 .if defined(BOOT_BTX_NOHANG)
 BOOT_BTX_FLAGS=0x1
--- a/sys/boot/pc98/btx/btxldr/Makefile	
+++ a/sys/boot/pc98/btx/btxldr/Makefile	
@@ -4,6 +4,7 @@ PROG=	btxldr
 INTERNALPROG=
 NO_MAN=
 SRCS=	btxldr.S
+CC_AS_LD=yes
 
 CFLAGS+=-DLOADER_ADDRESS=${LOADER_ADDRESS}
 
--- a/sys/boot/pc98/cdboot/Makefile	
+++ a/sys/boot/pc98/cdboot/Makefile	
@@ -5,6 +5,7 @@ STRIP=
 BINMODE=${NOBINMODE}
 NO_MAN=
 SRCS=	${PROG}.s
+CC_AS_LD=yes
 
 ORG=	0x0000