Index: head/sysutils/dtc/Makefile
===================================================================
--- head/sysutils/dtc/Makefile
+++ head/sysutils/dtc/Makefile
@@ -1,12 +1,11 @@
 # $FreeBSD$
 
 PORTNAME=	dtc
-PORTVERSION=	1.4.5
-PORTREVISION=	1
+PORTVERSION=	1.4.6
 DISTVERSIONPREFIX=	v
 CATEGORIES=	sysutils
 
-MAINTAINER=	imp@FreeBSD.org
+MAINTAINER=	uboot@FreeBSD.org
 COMMENT=	Device Tree Compiler
 
 LICENSE=	GPLv2
@@ -15,10 +14,15 @@
 USE_LDCONFIG=	yes
 SHEBANG_FILES=	dtdiff
 
+TEST_TARGET=	check
+TEST_ENV=	STATSZ="stat -f %Uz"
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	dgibson
 GH_PROJECT=	dtc
 
-MAKE_ARGS+=	PREFIX=${PREFIX} NO_PYTHON=yes
+MAKE_ARGS+=	PREFIX=${PREFIX} NO_PYTHON=yes \
+		INSTALL_PROGRAM="${INSTALL_PROGRAM}" \
+		INSTALL_LIB="${INSTALL_LIB}"
 
 .include <bsd.port.mk>
Index: head/sysutils/dtc/distinfo
===================================================================
--- head/sysutils/dtc/distinfo
+++ head/sysutils/dtc/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1511715245
-SHA256 (dgibson-dtc-v1.4.5_GH0.tar.gz) = d13df67f5402c1905d2c24603471fe783965112ab5004025a50f7f852cd89bc8
-SIZE (dgibson-dtc-v1.4.5_GH0.tar.gz) = 174933
+TIMESTAMP = 1515034018
+SHA256 (dgibson-dtc-v1.4.6_GH0.tar.gz) = 394d2fb852c326b070e9d7732b396f5d57da86cac728fe58a519a505cfb01837
+SIZE (dgibson-dtc-v1.4.6_GH0.tar.gz) = 176882
Index: head/sysutils/dtc/files/patch-Makefile
===================================================================
--- head/sysutils/dtc/files/patch-Makefile
+++ head/sysutils/dtc/files/patch-Makefile
@@ -0,0 +1,78 @@
+--- Makefile.orig	2018-01-04 03:37:52 UTC
++++ Makefile
+@@ -26,6 +26,10 @@ SWIG = swig
+ PKG_CONFIG ?= pkg-config
+ 
+ INSTALL = /usr/bin/install
++INSTALL_PROGRAM = $(INSTALL)
++INSTALL_LIB = $(INSTALL)
++INSTALL_DATA = $(INSTALL) -m 644
++INSTALL_SCRIPT = $(INSTALL)
+ DESTDIR =
+ PREFIX = $(HOME)
+ BINDIR = $(PREFIX)/bin
+@@ -191,20 +195,21 @@ endif
+ install-bin: all $(SCRIPTS)
+ 	@$(VECHO) INSTALL-BIN
+ 	$(INSTALL) -d $(DESTDIR)$(BINDIR)
+-	$(INSTALL) $(BIN) $(SCRIPTS) $(DESTDIR)$(BINDIR)
++	$(INSTALL_PROGRAM) $(BIN) $(DESTDIR)$(BINDIR)
++	$(INSTALL_SCRIPT) $(SCRIPTS) $(DESTDIR)$(BINDIR)
+ 
+ install-lib: all
+ 	@$(VECHO) INSTALL-LIB
+ 	$(INSTALL) -d $(DESTDIR)$(LIBDIR)
+-	$(INSTALL) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
++	$(INSTALL_LIB) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
+ 	ln -sf $(notdir $(LIBFDT_lib)) $(DESTDIR)$(LIBDIR)/$(LIBFDT_soname)
+ 	ln -sf $(LIBFDT_soname) $(DESTDIR)$(LIBDIR)/libfdt.$(SHAREDLIB_EXT)
+-	$(INSTALL) -m 644 $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
++	$(INSTALL_DATA) $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
+ 
+ install-includes:
+ 	@$(VECHO) INSTALL-INC
+ 	$(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)
+-	$(INSTALL) -m 644 $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
++	$(INSTALL_DATA) $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
+ 
+ install: install-bin install-lib install-includes
+ 
+--- Makefile.orig	2018-01-04 03:37:52 UTC
++++ Makefile
+@@ -26,6 +26,10 @@ SWIG = swig
+ PKG_CONFIG ?= pkg-config
+ 
+ INSTALL = /usr/bin/install
++INSTALL_PROGRAM = $(INSTALL)
++INSTALL_LIB = $(INSTALL)
++INSTALL_DATA = $(INSTALL) -m 644
++INSTALL_SCRIPT = $(INSTALL)
+ DESTDIR =
+ PREFIX = $(HOME)
+ BINDIR = $(PREFIX)/bin
+@@ -191,20 +195,21 @@ endif
+ install-bin: all $(SCRIPTS)
+ 	@$(VECHO) INSTALL-BIN
+ 	$(INSTALL) -d $(DESTDIR)$(BINDIR)
+-	$(INSTALL) $(BIN) $(SCRIPTS) $(DESTDIR)$(BINDIR)
++	$(INSTALL_PROGRAM) $(BIN) $(DESTDIR)$(BINDIR)
++	$(INSTALL_SCRIPT) $(SCRIPTS) $(DESTDIR)$(BINDIR)
+ 
+ install-lib: all
+ 	@$(VECHO) INSTALL-LIB
+ 	$(INSTALL) -d $(DESTDIR)$(LIBDIR)
+-	$(INSTALL) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
++	$(INSTALL_LIB) $(LIBFDT_lib) $(DESTDIR)$(LIBDIR)
+ 	ln -sf $(notdir $(LIBFDT_lib)) $(DESTDIR)$(LIBDIR)/$(LIBFDT_soname)
+ 	ln -sf $(LIBFDT_soname) $(DESTDIR)$(LIBDIR)/libfdt.$(SHAREDLIB_EXT)
+-	$(INSTALL) -m 644 $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
++	$(INSTALL_DATA) $(LIBFDT_archive) $(DESTDIR)$(LIBDIR)
+ 
+ install-includes:
+ 	@$(VECHO) INSTALL-INC
+ 	$(INSTALL) -d $(DESTDIR)$(INCLUDEDIR)
+-	$(INSTALL) -m 644 $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
++	$(INSTALL_DATA) $(LIBFDT_include) $(DESTDIR)$(INCLUDEDIR)
+ 
+ install: install-bin install-lib install-includes
+ 
Index: head/sysutils/dtc/files/patch-checks.c
===================================================================
--- head/sysutils/dtc/files/patch-checks.c
+++ head/sysutils/dtc/files/patch-checks.c
@@ -1,20 +0,0 @@
---- checks.c.orig	2017-12-05 20:24:45 UTC
-+++ checks.c
-@@ -972,7 +972,7 @@ static void check_property_phandle_args(struct check *
- 	int cell, cellsize = 0;
- 
- 	if (prop->val.len % sizeof(cell_t)) {
--		FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %ld in node %s",
-+		FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %zu in node %s",
- 		     prop->name, prop->val.len, sizeof(cell_t), node->fullpath);
- 		return;
- 	}
-@@ -1163,7 +1163,7 @@ static void check_interrupts_property(struct check *c,
- 		return;
- 
- 	if (irq_prop->val.len % sizeof(cell_t))
--		FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %ld in node %s",
-+		FAIL(c, dti, "property '%s' size (%d) is invalid, expected multiple of %zu in node %s",
- 		     irq_prop->name, irq_prop->val.len, sizeof(cell_t),
- 		     node->fullpath);
- 
Index: head/sysutils/dtc/files/patch-fdtoverlay.c
===================================================================
--- head/sysutils/dtc/files/patch-fdtoverlay.c
+++ head/sysutils/dtc/files/patch-fdtoverlay.c
@@ -1,12 +0,0 @@
---- fdtoverlay.c.orig	2017-09-27 10:00:10 UTC
-+++ fdtoverlay.c
-@@ -26,7 +26,9 @@
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-+#ifndef __FreeBSD__
- #include <alloca.h>
-+#endif
- #include <inttypes.h>
- 
- #include <libfdt.h>
Index: head/sysutils/dtc/files/patch-tests_Makefile.tests
===================================================================
--- head/sysutils/dtc/files/patch-tests_Makefile.tests
+++ head/sysutils/dtc/files/patch-tests_Makefile.tests
@@ -0,0 +1,22 @@
+--- tests/Makefile.tests.orig	2018-01-03 06:04:32 UTC
++++ tests/Makefile.tests
+@@ -56,7 +56,7 @@ $(LIB_TESTS): %: $(TESTS_PREFIX)testutils.o util.o $(L
+ 
+ $(DL_LIB_TESTS): %: %.o $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive)
+ 	@$(VECHO) LD [libdl] $@
+-	$(LINK.c) -o $@ $^ -ldl
++	$(LINK.c) -o $@ $^
+ 
+ $(LIBTREE_TESTS): %: $(TESTS_PREFIX)testutils.o $(TESTS_PREFIX)trees.o \
+ 		util.o $(LIBFDT_archive)
+--- tests/Makefile.tests.orig	2018-01-03 06:04:32 UTC
++++ tests/Makefile.tests
+@@ -56,7 +56,7 @@ $(LIB_TESTS): %: $(TESTS_PREFIX)testutils.o util.o $(L
+ 
+ $(DL_LIB_TESTS): %: %.o $(TESTS_PREFIX)testutils.o util.o $(LIBFDT_archive)
+ 	@$(VECHO) LD [libdl] $@
+-	$(LINK.c) -o $@ $^ -ldl
++	$(LINK.c) -o $@ $^
+ 
+ $(LIBTREE_TESTS): %: $(TESTS_PREFIX)testutils.o $(TESTS_PREFIX)trees.o \
+ 		util.o $(LIBFDT_archive)
Index: head/sysutils/dtc/pkg-plist
===================================================================
--- head/sysutils/dtc/pkg-plist
+++ head/sysutils/dtc/pkg-plist
@@ -3,8 +3,9 @@
 bin/dtdiff
 bin/fdtdump
 bin/fdtget
+bin/fdtoverlay
 bin/fdtput
-lib/libfdt-1.4.5.so
+lib/libfdt-1.4.6.so
 lib/libfdt.a
 lib/libfdt.so
 lib/libfdt.so.1