Index: head/multimedia/smpeg2/Makefile
===================================================================
--- head/multimedia/smpeg2/Makefile	(revision 458130)
+++ head/multimedia/smpeg2/Makefile	(revision 458131)
@@ -1,37 +1,38 @@
 # Created by: Vladimir Kondratiev <wulf@mail.mipt.ru>
 # $FreeBSD$
 
 PORTNAME=	smpeg2
 PORTVERSION=	2.0.0
 PORTREVISION=	4
 CATEGORIES=	multimedia
 MASTER_SITES=	http://www.libsdl.org/projects/smpeg/release/ \
 		http://rsync.macports.org/smpeg2/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Free MPEG1 video player library with sound support
 
 LICENSE=	MIT LGPL20+
 LICENSE_COMB=	multi
 
 GNU_CONFIGURE=	yes
 INSTALL_TARGET=	install-strip
-USES=		libtool
+CFLAGS+=	${COMPILER_FEATURES:Mc++11:C/.+/-Wno-error=narrowing/}
+USES=		compiler:features libtool
 USE_SDL=	sdl2
 USE_LDCONFIG=	yes
 
 OPTIONS_DEFINE=	PLAYMPEG
 OPTIONS_DEFAULT=
 PLAYMPEG_DESC=	Build plaympeg binary (conficts with smpeg)
 OPTIONS_SUB=	yes
 
 CONFIGURE_ARGS=	--enable-mmx
 
 PLAYMPEG_CONFLICTS_INSTALL=	smpeg
 PLAYMPEG_VARS=	LICENSE+=GPLv2+
 
 post-patch-PLAYMPEG-off:
 	@${REINPLACE_CMD} -e '/^bin_PROGRAMS =/s/plaympeg$$(EXEEXT)// ; \
 		/^man_MANS =/s/plaympeg\.1//' ${WRKSRC}/Makefile.in
 
 .include <bsd.port.mk>