Index: head/misc/hashdb/Makefile
===================================================================
--- head/misc/hashdb/Makefile	(revision 503514)
+++ head/misc/hashdb/Makefile	(revision 503515)
@@ -1,38 +1,39 @@
 # $FreeBSD$
 
 PORTNAME=	hashdb
 DISTVERSIONPREFIX=	v
 DISTVERSION=	3.1.0-8
 DISTVERSIONSUFFIX=	-g1da1b9f
 CATEGORIES=	misc
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Block hash database tool and API
 
 LICENSE=	PD
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	swig3.0:devel/swig30
 LIB_DEPENDS=	libewf.so:devel/libewf
 
-USES=		autoreconf gmake libtool localbase:ldflags python ssl
+USES=		autoreconf compiler:c++11-lang gmake libtool localbase:ldflags \
+		python ssl
 GNU_CONFIGURE=	yes
 USE_GITHUB=	yes
 GH_ACCOUNT=	NPS-DEEP
 CONFIGURE_ARGS=	ac_cv_lib_ssl_SSL_library_init=yes \
 		--disable-static --enable-shared # enable-shared fails: https://github.com/NPS-DEEP/hashdb/issues/9
 
 INSTALL_TARGET=	install-strip
 
 CONFIGURE_ENV=	PYTHON=${PYTHON_CMD}
 BINARY_ALIAS=	swig=${LOCALBASE}/bin/swig3.0
 
 CFLAGS+=	-fPIC
 CXXFLAGS+=	-fPIC
 
 PLIST_SUB+=	PYTHON_SITELIBDIR=${PYTHONPREFIX_SITELIBDIR:S;${PREFIX}/;;}
 
 post-configure:
 	@${FIND} ${WRKSRC} -name Makefile | ${XARGS} ${REINPLACE_CMD} 's| -lstdc++ | |'
 
 .include <bsd.port.mk>