diff --git a/sys/conf/files.i386 b/sys/conf/files.i386
index c9555079c6a..c6a3260e6ac 100644
--- a/sys/conf/files.i386
+++ b/sys/conf/files.i386
@@ -239,13 +239,28 @@ dev/acpica/acpi_if.m		standard
 dev/acpi_support/acpi_wmi_if.m	standard
 dev/wpi/if_wpi.c		optional wpi
 i386/acpica/acpi_machdep.c	optional acpi
-i386/acpica/acpi_wakeup.c	optional acpi
-acpi_wakecode.h			optional acpi			\
-	dependency 	"$S/i386/acpica/acpi_wakecode.S assym.s"	\
-	compile-with	"${MAKE} -f $S/i386/acpica/Makefile MAKESRCPATH=$S/i386/acpica"	\
+acpi_wakecode.o			optional acpi				\
+	dependency	"$S/i386/acpica/acpi_wakecode.S assym.s"	\
+	compile-with	"${NORMAL_S}"					\
 	no-obj no-implicit-rule before-depend				\
-	clean		"acpi_wakecode.h acpi_wakecode.o acpi_wakecode.bin"
+	clean		"acpi_wakecode.o"
+acpi_wakecode.bin		optional acpi				\
+	dependency	"acpi_wakecode.o"				\
+	compile-with	"objcopy -S -O binary acpi_wakecode.o ${.TARGET}" \
+	no-obj no-implicit-rule	before-depend				\
+	clean		"acpi_wakecode.bin"
+acpi_wakecode.h			optional acpi				\
+	dependency	"acpi_wakecode.bin"				\
+	compile-with	"file2c -sx 'static char wakecode[] = {' '};' < acpi_wakecode.bin > ${.TARGET}" \
+	no-obj no-implicit-rule	before-depend				\
+	clean		"acpi_wakecode.h"
+acpi_wakedata.h			optional acpi				\
+	dependency	"acpi_wakecode.o"				\
+	compile-with	'${NM} -n --defined-only acpi_wakecode.o | while read offset dummy what; do echo "#define	$${what}	0x$${offset}"; done > ${.TARGET}' \
+	no-obj no-implicit-rule	before-depend				\
+	clean		"acpi_wakedata.h"
 #
+i386/acpica/acpi_wakeup.c	optional acpi
 i386/bios/apm.c			optional apm
 i386/bios/mca_machdep.c		optional mca
 i386/bios/smapi.c		optional smapi
diff --git a/sys/i386/acpica/Makefile b/sys/i386/acpica/Makefile
deleted file mode 100644
index 87061d67247..00000000000
--- a/sys/i386/acpica/Makefile
+++ /dev/null
@@ -1,30 +0,0 @@
-# $FreeBSD$
-
-# Correct path for kernel builds
-# Don't rely on the kernel's .depend file
-.ifdef MAKESRCPATH
-.PATH: ${MAKESRCPATH}
-DEPENDFILE=
-.else
-MAKESRCPATH= ${.CURDIR}
-CLEANFILES= acpi_wakecode.h acpi_wakecode.bin acpi_wakecode.o
-.endif
-.if ${CC:T:Micc} == "icc"
-CFLAGS+=	-restrict
-NOSTDINC=	-X
-.else
-NOSTDINC=	-nostdinc
-.endif
-CFLAGS+=	${NOSTDINC} -I. -I${MAKESRCPATH}/../..
-
-all: acpi_wakecode.h
-
-acpi_wakecode.o: acpi_wakecode.S assym.s
-
-acpi_wakecode.bin: acpi_wakecode.o
-	objcopy -S -O binary acpi_wakecode.o acpi_wakecode.bin
-
-acpi_wakecode.h: acpi_wakecode.bin acpi_wakecode.o
-	sh ${MAKESRCPATH}/genwakecode.sh > acpi_wakecode.h
-
-.include <bsd.prog.mk>
diff --git a/sys/i386/acpica/acpi_wakecode.S b/sys/i386/acpica/acpi_wakecode.S
index 889a58a24c1..e23b138870f 100644
--- a/sys/i386/acpica/acpi_wakecode.S
+++ b/sys/i386/acpica/acpi_wakecode.S
@@ -27,8 +27,6 @@
  * $FreeBSD$
  */
 
-#define LOCORE
-
 #include <machine/asmacros.h>
 #include <machine/specialreg.h>
 
diff --git a/sys/i386/acpica/acpi_wakeup.c b/sys/i386/acpica/acpi_wakeup.c
index 2397d801539..6a464470b49 100644
--- a/sys/i386/acpica/acpi_wakeup.c
+++ b/sys/i386/acpica/acpi_wakeup.c
@@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
 #include <dev/acpica/acpivar.h>
 
 #include "acpi_wakecode.h"
+#include "acpi_wakedata.h"
 
 /* Make sure the code is less than one page and leave room for the stack. */
 CTASSERT(sizeof(wakecode) < PAGE_SIZE - 1024);
diff --git a/sys/i386/acpica/genwakecode.sh b/sys/i386/acpica/genwakecode.sh
deleted file mode 100644
index caffbf8642a..00000000000
--- a/sys/i386/acpica/genwakecode.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#!/bin/sh
-# $FreeBSD$
-#
-file2c 'static char wakecode[] = {' '};' <acpi_wakecode.bin
-
-nm -n --defined-only acpi_wakecode.o | while read offset dummy what
-do
-    echo "#define ${what}	0x${offset}"
-done
-
-exit 0
diff --git a/sys/modules/acpi/acpi/Makefile b/sys/modules/acpi/acpi/Makefile
index ce1e5721794..9953e0c0616 100644
--- a/sys/modules/acpi/acpi/Makefile
+++ b/sys/modules/acpi/acpi/Makefile
@@ -96,23 +96,24 @@ opt_ddb.h: Makefile
 .endif
 
 # Machine-specific code such as sleep/wakeup
-SRCS+=	acpi_apm.c acpi_machdep.c acpi_wakecode.h acpi_wakeup.c
+SRCS+=	acpi_apm.c acpi_machdep.c acpi_wakecode.h acpi_wakedata.h acpi_wakeup.c
 SRCS+=	assym.s madt.c
-CLEANFILES+=	acpi_wakecode.bin acpi_wakecode.h acpi_wakecode.o
+CLEANFILES+=acpi_wakecode.bin acpi_wakecode.h acpi_wakecode.o acpi_wakedata.h
 
 SRCS+=	opt_global.h
 
+ASM_CFLAGS=	-x assembler-with-cpp -DLOCORE ${CFLAGS}
+NORMAL_S=	${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
+NM?=		nm
+
 .if ${MACHINE_CPUARCH} == "amd64"
 .if !defined(KERNBUILDDIR)
 CFLAGS+=-DSMP
 .endif
-SRCS+=	acpi_switch.S acpi_wakedata.h
-CLEANFILES+=	acpi_wakedata.h
-ASM_CFLAGS=	-x assembler-with-cpp -DLOCORE ${CFLAGS}
-NORMAL_S=	${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
-NM?=		nm
+SRCS+=	acpi_switch.S
 acpi_switch.o:	acpi_switch.S
 	${NORMAL_S}
+.endif
 acpi_wakecode.o: acpi_wakecode.S assym.s
 	${NORMAL_S}
 acpi_wakecode.bin: acpi_wakecode.o
@@ -125,10 +126,5 @@ acpi_wakedata.h: acpi_wakecode.o
 	    while read offset dummy what; do \
 	    echo "#define	$${what}	0x$${offset}"; \
 	    done > ${.TARGET}
-.else
-acpi_wakecode.h: acpi_wakecode.S assym.s
-	${MAKE} -f ${.CURDIR}/../../../${MACHINE_CPUARCH}/acpica/Makefile \
-		MAKESRCPATH=${.CURDIR}/../../../${MACHINE_CPUARCH}/acpica
-.endif
 
 .include <bsd.kmod.mk>