From fff91969c9cc49df36143faf851f30bf2a9706ca Mon Sep 17 00:00:00 2001
From: bdrewery <bdrewery@FreeBSD.org>
Date: Fri, 18 Mar 2016 18:24:36 +0000
Subject: [PATCH] MFC r296643:

  Fix make -n upgrade_checks.
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index ff4c18cbbc78..9898df061735 100644
--- a/Makefile
+++ b/Makefile
@@ -336,7 +336,7 @@ kernel: buildkernel installkernel
 upgrade_checks:
 .if ${HAVE_MAKE} != ${WANT_MAKE} || \
     (defined(WANT_MAKE_VERSION) && ${MAKE_VERSION} < ${WANT_MAKE_VERSION})
-	@(cd ${.CURDIR} && ${MAKE} ${WANT_MAKE:S,^f,,})
+	@${_+_}(cd ${.CURDIR} && ${MAKE} ${WANT_MAKE:S,^f,,})
 .elif ${WANT_MAKE} == "fmake"
 	@if ! (cd ${.CURDIR}/tools/build/make_check && \
 	    PATH=${PATH} ${BINMAKE} obj >/dev/null 2>&1 && \