diff --git a/usr.bin/make/Makefile b/usr.bin/make/Makefile
index 9bc59abae9a3..4f118ab31b54 100644
--- a/usr.bin/make/Makefile
+++ b/usr.bin/make/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.60 2018/06/10 17:55:11 christos Exp $
+#	$NetBSD: Makefile,v 1.61 2019/02/04 03:58:41 mrg Exp $
 #	@(#)Makefile	5.2 (Berkeley) 12/28/90
 
 PROG=	make
@@ -46,6 +46,10 @@ LDADD+=-lutil
 DPADD+=${LIBUTIL}
 .endif
 
+.if defined(HAVE_GCC) && ${HAVE_GCC} == 7 && ${ACTIVE_CC} == "gcc"
+COPTS.arch.c += -Wno-error=format-truncation
+.endif
+
 # A simple unit-test driver to help catch regressions
 accept test:
 	cd ${.CURDIR}/unit-tests && MAKEFLAGS= ${.MAKE} -r -m / TEST_MAKE=${TEST_MAKE:U${.OBJDIR}/${PROG:T}} ${.TARGET}
diff --git a/usr.bin/newsyslog/Makefile b/usr.bin/newsyslog/Makefile
index 5009e762932b..02ecc92fdcb2 100644
--- a/usr.bin/newsyslog/Makefile
+++ b/usr.bin/newsyslog/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.18 2009/04/14 22:15:24 lukem Exp $
+#	$NetBSD: Makefile,v 1.19 2019/02/04 03:58:41 mrg Exp $
 
 PROG=	newsyslog
 SRCS=	newsyslog.c
@@ -6,4 +6,10 @@ SRCS=	newsyslog.c
 MAN=	newsyslog.8
 MLINKS+=newsyslog.8 newsyslog.conf.5
 
+.include <bsd.own.mk>
+
+.if defined(HAVE_GCC) && ${HAVE_GCC} == 7 && ${ACTIVE_CC} == "gcc"
+COPTS.newsyslog.c += -Wno-error=format-truncation
+.endif
+
 .include <bsd.prog.mk>
diff --git a/usr.bin/rdist/Makefile b/usr.bin/rdist/Makefile
index 20117c62c33d..2929167d5275 100644
--- a/usr.bin/rdist/Makefile
+++ b/usr.bin/rdist/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.11 2007/05/28 12:06:29 tls Exp $
+#	$NetBSD: Makefile,v 1.12 2019/02/04 03:58:41 mrg Exp $
 #	from: @(#)Makefile	8.3 (Berkeley) 7/19/93
 
 USE_FORT?= yes	# network client/server
@@ -7,4 +7,10 @@ CPPFLAGS+= -I${.CURDIR}
 PROG=	rdist
 SRCS=	docmd.c expand.c gram.y lookup.c main.c server.c
 
+.include <bsd.own.mk>
+
+.if defined(HAVE_GCC) && ${HAVE_GCC} == 7 && ${ACTIVE_CC} == "gcc"
+COPTS.server.c += -Wno-error=format-truncation
+.endif
+
 .include <bsd.prog.mk>
diff --git a/usr.bin/systat/Makefile b/usr.bin/systat/Makefile
index 780ea93710f3..6fccd9718392 100644
--- a/usr.bin/systat/Makefile
+++ b/usr.bin/systat/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.40 2016/12/23 10:19:57 mrg Exp $
+#	$NetBSD: Makefile,v 1.41 2019/02/04 03:58:41 mrg Exp $
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
 
 .include <bsd.own.mk>
@@ -29,4 +29,8 @@ SRCS+=	ip6.c
 
 .include "../../compat/exec.mk"
 
+.if defined(HAVE_GCC) && ${HAVE_GCC} == 7 && ${ACTIVE_CC} == "gcc"
+COPTS.df.c += -Wno-error=format-truncation
+.endif
+
 .include <bsd.prog.mk>