Index: head/sys/boot/fdt/Makefile
===================================================================
--- head/sys/boot/fdt/Makefile	(revision 324882)
+++ head/sys/boot/fdt/Makefile	(revision 324883)
@@ -1,30 +1,32 @@
 # $FreeBSD$
 
-.PATH:		${.CURDIR}/../../contrib/libfdt/
+.include <bsd.init.mk>
 
+.PATH:		${SYSDIR}/contrib/libfdt/
+
 LIB=		fdt
 INTERNALLIB=
 
 # Vendor sources of libfdt.
 SRCS+=		fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c \
 		fdt_empty_tree.c
 
 # Loader's fdt commands extension sources.
 SRCS+=		fdt_loader_cmd.c fdt_overlay.c
 
-CFLAGS+=	-I${.CURDIR}/../../contrib/libfdt/ -I${.CURDIR}/../common/
+CFLAGS+=	-I${SYSDIR}/contrib/libfdt/ -I${BOOTSRC}/common/
 
 CFLAGS+=	-ffreestanding
 
 .if ${MACHINE_CPUARCH} == "powerpc" || ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "mips"
 CFLAGS+=	-msoft-float
 .endif
 
 .if ${MACHINE_ARCH} == "powerpc64"
 CFLAGS+=	-m32
 .endif
 
 CFLAGS+=	-Wformat -Wall
 
 .include <bsd.stand.mk>
 .include <bsd.lib.mk>