Index: head/sys/boot/arm/uboot/Makefile
===================================================================
--- head/sys/boot/arm/uboot/Makefile
+++ head/sys/boot/arm/uboot/Makefile
@@ -90,7 +90,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 CFLAGS+=	-ffreestanding -msoft-float
 
@@ -119,9 +119,6 @@
 
 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.uboot ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/common/Makefile.inc
===================================================================
--- head/sys/boot/common/Makefile.inc
+++ head/sys/boot/common/Makefile.inc
@@ -71,3 +71,8 @@
 SRCS+=	install.c
 CFLAGS+=-I${.CURDIR}/../../../../lib/libstand
 .endif
+
+CLEANFILES+=	vers.c
+VERSION_FILE?=	${.CURDIR}/version
+vers.c: ${SRCTOP}/sys/boot/common/newvers.sh ${VERSION_FILE}
+	sh ${SRCTOP}/sys/boot/common/newvers.sh ${VERSION_FILE} ${NEWVERSWHAT}
Index: head/sys/boot/efi/loader/Makefile
===================================================================
--- head/sys/boot/efi/loader/Makefile
+++ head/sys/boot/efi/loader/Makefile
@@ -115,13 +115,10 @@
 LDSCRIPT=	${.CURDIR}/arch/${MACHINE}/ldscript.${MACHINE}
 LDFLAGS+=	-Wl,-T${LDSCRIPT} -Wl,-Bsymbolic -shared
 
-CLEANFILES+=	vers.c loader.efi
+CLEANFILES+=	loader.efi
 
 NEWVERSWHAT=	"EFI loader" ${MACHINE}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../../efi/loader/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 NM?=		nm
 OBJCOPY?=	objcopy
 
Index: head/sys/boot/i386/loader/Makefile
===================================================================
--- head/sys/boot/i386/loader/Makefile
+++ head/sys/boot/i386/loader/Makefile
@@ -8,6 +8,7 @@
 MAN=	
 INTERNALPROG=
 NEWVERSWHAT?=	"bootstrap loader" x86
+VERSION_FILE=	${.CURDIR}/../loader/version
 
 # architecture-specific loader code
 SRCS=		main.c conf.c vers.c
@@ -72,7 +73,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common
 CFLAGS+=	-I.
 
-CLEANFILES=	vers.c ${LOADER} ${LOADER}.bin loader.help
+CLEANFILES=	${LOADER} ${LOADER}.bin loader.help
 
 CFLAGS+=	-Wall
 LDFLAGS=	-static -Ttext 0x0
@@ -93,10 +94,6 @@
 # Pick up ../Makefile.inc early.
 .include <bsd.init.mk>
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../loader/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../loader/version \
-		${NEWVERSWHAT}
-
 ${LOADER}: ${LOADER}.bin ${BTXLDR} ${BTXKERN}
 	btxld -v -f aout -e ${LOADER_ADDRESS} -o ${.TARGET} -l ${BTXLDR} \
 		-b ${BTXKERN} ${LOADER}.bin
Index: head/sys/boot/mips/beri/loader/Makefile
===================================================================
--- head/sys/boot/mips/beri/loader/Makefile
+++ head/sys/boot/mips/beri/loader/Makefile
@@ -92,7 +92,7 @@
 # Loader-specific MD headers
 CFLAGS+=	-I${.CURDIR}
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 # Generate code appropriate for the loader environment
 CFLAGS+=	-G0					\
@@ -114,10 +114,6 @@
 DPADD=		${LIBFICL} ${LIBSTAND}
 LDADD=		${LIBFICL} ${LIBSTAND}
 
-vers.c: ${.CURDIR}/../../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../../common/newvers.sh ${.CURDIR}/version	\
-	    ${NEWVERSWHAT}
-
 loader.help: help.common help.mips
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/mips/uboot/Makefile
===================================================================
--- head/sys/boot/mips/uboot/Makefile
+++ head/sys/boot/mips/uboot/Makefile
@@ -99,7 +99,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 CFLAGS+=	-ffreestanding -msoft-float -g
 
@@ -128,9 +128,6 @@
 
 OBJS+=  ${SRCS:N*.h:R:S/$/.o/g}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.uboot ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/pc98/loader/Makefile
===================================================================
--- head/sys/boot/pc98/loader/Makefile
+++ head/sys/boot/pc98/loader/Makefile
@@ -8,6 +8,7 @@
 PROG=		${LOADER}.sym
 INTERNALPROG=
 NEWVERSWHAT=	"bootstrap loader" pc98
+VERSION_FILE=	${.CURDIR}/../../i386/loader/version
 
 # architecture-specific loader code
 SRCS=		main.c conf.c vers.c
@@ -48,7 +49,7 @@
 CFLAGS+=	-I${.CURDIR}/../../i386
 CFLAGS+=	-I.
 
-CLEANFILES=	vers.c ${LOADER} ${LOADER}.bin loader.help
+CLEANFILES=	${LOADER} ${LOADER}.bin loader.help
 
 CFLAGS+=	-Wall
 LDFLAGS=	-static -Ttext 0x0
@@ -69,9 +70,6 @@
 # Pick up ../Makefile.inc early.
 .include <bsd.init.mk>
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../../i386/loader/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../../i386/loader/version ${NEWVERSWHAT}
-
 ${LOADER}: ${LOADER}.bin ${BTXLDR} ${BTXKERN}
 	btxld -v -f aout -e ${LOADER_ADDRESS} -o ${.TARGET} -l ${BTXLDR} \
 		-b ${BTXKERN} ${LOADER}.bin
Index: head/sys/boot/powerpc/kboot/Makefile
===================================================================
--- head/sys/boot/powerpc/kboot/Makefile
+++ head/sys/boot/powerpc/kboot/Makefile
@@ -76,7 +76,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../..
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 CFLAGS+=	-Wall -ffreestanding -msoft-float -DAIM
 # load address. set in linker script
@@ -99,9 +99,6 @@
 DPADD=		${LIBFICL} ${LIBOFW} ${LIBFDT} ${LIBSTAND}
 LDADD=		${LIBFICL} ${LIBOFW} ${LIBFDT} ${LIBSTAND}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.kboot ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/powerpc/ofw/Makefile
===================================================================
--- head/sys/boot/powerpc/ofw/Makefile
+++ head/sys/boot/powerpc/ofw/Makefile
@@ -73,7 +73,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../..
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 CFLAGS+=	-ffreestanding -msoft-float
 # load address. set in linker script
@@ -97,9 +97,6 @@
 DPADD=		${LIBFICL} ${LIBOFW} ${LIBFDT} ${LIBSTAND}
 LDADD=		${LIBFICL} ${LIBOFW} ${LIBFDT} ${LIBSTAND}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.ofw ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/powerpc/ps3/Makefile
===================================================================
--- head/sys/boot/powerpc/ps3/Makefile
+++ head/sys/boot/powerpc/ps3/Makefile
@@ -76,7 +76,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../..
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 CFLAGS+=	-Wall -ffreestanding -msoft-float -DAIM
 # load address. set in linker script
@@ -101,9 +101,6 @@
 font.h:
 	uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x16.fnt && file2c 'u_char dflt_font_16[16*256] = {' '};' < ${SC_DFLT_FONT}-8x16 > font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x14.fnt && file2c 'u_char dflt_font_14[14*256] = {' '};' < ${SC_DFLT_FONT}-8x14 >> font.h && uudecode < /usr/share/syscons/fonts/${SC_DFLT_FONT}-8x8.fnt && file2c 'u_char dflt_font_8[8*256] = {' '};' < ${SC_DFLT_FONT}-8x8 >> font.h
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.ps3 ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/powerpc/uboot/Makefile
===================================================================
--- head/sys/boot/powerpc/uboot/Makefile
+++ head/sys/boot/powerpc/uboot/Makefile
@@ -79,7 +79,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../..
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c ${PROG}.help
+CLEANFILES+=	${PROG}.help
 
 CFLAGS+=	-ffreestanding
 
@@ -102,9 +102,6 @@
 DPADD=		${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
 LDADD=		${LIBFICL} ${LIBUBOOT} ${LIBFDT} ${LIBUBOOT_FDT} ${LIBSTAND}
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
 loader.help: help.common help.uboot ${.CURDIR}/../../fdt/help.fdt
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/sparc64/loader/Makefile
===================================================================
--- head/sys/boot/sparc64/loader/Makefile
+++ head/sys/boot/sparc64/loader/Makefile
@@ -6,6 +6,7 @@
 
 PROG?=		loader
 NEWVERSWHAT?=	"bootstrap loader" sparc64
+VERSION_FILE=	${.CURDIR}/../loader/version
 INSTALLFLAGS=	-b
 
 # Architecture-specific loader code
@@ -70,7 +71,7 @@
 CFLAGS+=	-I${.CURDIR}/../../common
 CFLAGS+=	-I.
 
-CLEANFILES+=	vers.c loader.help
+CLEANFILES+=	loader.help
 
 LDFLAGS=	-static
 
@@ -84,10 +85,6 @@
 DPADD=		${LIBFICL} ${LIBZFSBOOT} ${LIBOFW} ${LIBSTAND}
 LDADD=		${LIBFICL} ${LIBZFSBOOT} ${LIBOFW} -lstand
 
-vers.c:	${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../loader/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/../loader/version \
-	    ${NEWVERSWHAT}
-
 loader.help: help.common help.sparc64
 	cat ${.ALLSRC} | \
 	    awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
Index: head/sys/boot/userboot/userboot/Makefile
===================================================================
--- head/sys/boot/userboot/userboot/Makefile
+++ head/sys/boot/userboot/userboot/Makefile
@@ -41,11 +41,6 @@
 
 NEWVERSWHAT=	"User boot" ${MACHINE_CPUARCH}
 
-vers.c: ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version
-	sh ${.CURDIR}/../../common/newvers.sh ${.CURDIR}/version ${NEWVERSWHAT}
-
-CLEANFILES=	vers.c
-
 .if ${MK_FORTH} != "no"
 BOOT_FORTH=	yes
 CFLAGS+=        -DBOOT_FORTH -I${.CURDIR}/../../ficl -I${.CURDIR}/../../ficl/i386