Index: head/benchmarks/lzbench/Makefile
===================================================================
--- head/benchmarks/lzbench/Makefile	(revision 459049)
+++ head/benchmarks/lzbench/Makefile	(revision 459050)
@@ -1,32 +1,34 @@
 # Created by: Alexey Dokuchaev <danfe@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	lzbench
 PORTVERSION=	1.7.3
 DISTVERSIONPREFIX=	v
 CATEGORIES=	benchmarks
 
 MAINTAINER=	danfe@FreeBSD.org
 COMMENT=	In-memory benchmark of open-source LZ77/LZSS/LZMA compressors
 
 USES=		compiler:c11 gmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	inikep
 
+MAKE_ENV=	CODE_FLAGS=-Wno-c++11-narrowing		# XXX: for clang 6
+
 PLIST_FILES=	bin/lzbench
 PORTDOCS=	NEWS
 
 OPTIONS_DEFINE=	DOCS
 
 post-patch:
 	@${REINPLACE_CMD} -e '/PROGOS/s,Linux,${OPSYS},' \
 		${WRKSRC}/_lzbench/lzbench.h
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/lzbench ${STAGEDIR}${PREFIX}/bin
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${PORTDOCS:S,^,${WRKSRC}/,} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>