Index: head/devel/kiwix-lib/Makefile
===================================================================
--- head/devel/kiwix-lib/Makefile	(revision 492112)
+++ head/devel/kiwix-lib/Makefile	(revision 492113)
@@ -1,31 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	kiwix-lib
 DISTVERSION=	3.1.1
 CATEGORIES=	devel
 
 MAINTAINER=	me@int19h.org
 COMMENT=	Common code base for all Kiwix ports
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	bash:shells/bash
 LIB_DEPENDS=	libzim.so:devel/libzim \
 		libpugixml.so:textproc/pugixml \
 		libaria2.so:www/aria2 \
 		libicui18n.so:devel/icu \
 		libicuuc.so:devel/icu \
 		libxapian.so:databases/xapian-core \
 		libctpp2.so:textproc/ctpp2 \
 		libcurl.so:ftp/curl
 
-USES=		meson pkgconfig python:3.6+ shebangfix
+USES=		compiler:c++11-lang meson pkgconfig python:3.6+ shebangfix
 USE_LDCONFIG=	yes
 USE_GITHUB=	yes
 GH_ACCOUNT=	kiwix
 
 MESON_ARGS=	-Dctpp2-install-prefix=${LOCALBASE}
 SHEBANG_FILES=	scripts/kiwix-compile-resources
 
 .include <bsd.port.mk>