Index: head/sysutils/ltfs/Makefile
===================================================================
--- head/sysutils/ltfs/Makefile	(revision 531932)
+++ head/sysutils/ltfs/Makefile	(revision 531933)
@@ -1,35 +1,35 @@
 # Created by: Kevin Bowling <kbowling@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=		ltfs
 DISTVERSIONPREFIX=	v
 DISTVERSION=		2.4.2.0
 DISTVERSIONSUFFIX=	-10418
 CATEGORIES=		sysutils
 
 MAINTAINER=	kbowling@FreeBSD.org
 COMMENT=	Reference implementation of LTFS for stand alone tape drive
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE =	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libicudata.so:devel/icu \
 		libnetsnmp.so:net-mgmt/net-snmp \
 		libpkg.so:${PKG_ORIGIN} \
 		libuuid.so:misc/e2fsprogs-libuuid
 
-USES=		autoreconf fuse gnome libtool:build pkgconfig ssl
+USES=		autoreconf compiler:c11 fuse gnome libtool:build pkgconfig ssl
 
 CONFIGURE_ARGS+=	--enable-icu-6x
 GH_ACCOUNT=		LinearTapeFileSystem
 GNU_CONFIGURE=		yes
 INSTALL_TARGET=		install-strip
 USE_GITHUB=		yes
 USE_GNOME=		libxml2
 USE_LDCONFIG=		yes
 
 post-install:
 	@${RM} ${STAGEDIR}${DATADIR}/ltfs
 	@${RMDIR} ${STAGEDIR}${DATADIR}
 
 .include <bsd.port.mk>