Index: head/sys/boot/uboot/lib/Makefile
===================================================================
--- head/sys/boot/uboot/lib/Makefile	(revision 324701)
+++ head/sys/boot/uboot/lib/Makefile	(revision 324702)
@@ -1,45 +1,49 @@
 # $FreeBSD$
 
 .include <src.opts.mk>
 
 .PATH: ${.CURDIR}/../../common
 
 LIB=		uboot
 INTERNALLIB=
 WARNS?=		2
 
 SRCS=	console.c copy.c devicename.c elf_freebsd.c glue.c
 SRCS+=	module.c net.c reboot.c time.c
 
 CFLAGS+=	-ffreestanding -msoft-float
 
+.if ${LOADER_DISK_SUPPORT:Uyes} == "yes"
+SRCS+= disk.c
+.endif
+
 .if ${MK_FDT} != "no"
 LOADER_FDT_SUPPORT=	yes
 .else
 LOADER_FDT_SUPPORT=	no
 .endif
 
 .if ${LOADER_FDT_SUPPORT} == "yes"
 CFLAGS+= -DLOADER_FDT_SUPPORT -I${.CURDIR}/../../fdt
 .endif
 
 # Pick up FDT includes
 CFLAGS+=	-I${.CURDIR}/../../../../sys/contrib/libfdt/
 
 # Pick up the bootstrap header for some interface items
 CFLAGS+=	-I${.CURDIR}/../../common -I${.CURDIR}/../../.. -I.
 
 .ifdef(BOOT_DISK_DEBUG)
 # Make the disk code more talkative
 CFLAGS+= -DDISK_DEBUG
 .endif
 
 machine: .NOMETA
 	ln -sf ${.CURDIR}/../../../${MACHINE_CPUARCH}/include machine
 
 CLEANFILES+=	machine
 
 .include <bsd.stand.mk>
 .include <bsd.lib.mk>
 
 beforedepend ${OBJS}: machine