Index: head/net/pichi/Makefile
===================================================================
--- head/net/pichi/Makefile	(revision 517207)
+++ head/net/pichi/Makefile	(revision 517208)
@@ -1,74 +1,74 @@
 # $FreeBSD$
 
 PORTNAME=	pichi
 DISTVERSION=	1.2.0
 CATEGORIES=	net
 
 MAINTAINER=	pichi@elude.in
 COMMENT=	Application Layer Proxy controlled via RESTful APIs
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	rapidjson>=1.1.0:devel/rapidjson
 
-USES=		cmake
+USES=		cmake compiler:c++17-lang
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	pichi-router
 
 USE_RC_SUBR=	pichi
 PLIST_SUB=	DISTVERSION=${DISTVERSION}
 
 CMAKE_BUILD_TYPE=	MinSizeRel
 CMAKE_ARGS=		-DVERSION=${DISTVERSION}
 CMAKE_ON=		BUILD_SERVER BUILD_TEST
 CMAKE_OFF=		INSTALL_HEADERS
 INSTALL_TARGET=		install/strip
 TEST_TARGET=		test
 
 OPTIONS_DEFINE=		STATIC TLS
 OPTIONS_DEFAULT=	TLS
 OPTIONS_SUB=		yes
 
 TLS_DESC=	Enable TLS support ( requiring OpenSSL )
 TLS_CMAKE_BOOL=	ENABLE_TLS
 
 STATIC_DESC=		Build/Install static library
 STATIC_CMAKE_BOOL=	STATIC_LINK
 STATIC_BUILD_DEPENDS=	boost-libs>=1.67.0:devel/boost-libs \
 			libmaxminddb>=1.3.0:net/libmaxminddb \
 			libsodium>=1.0.12:security/libsodium \
 			mbedtls>=2.7.0:security/mbedtls
 STATIC_LIB_DEPENDS_OFF=	libboost_context.so:devel/boost-libs \
 			libboost_filesystem.so:devel/boost-libs \
 			libboost_program_options.so:devel/boost-libs \
 			libboost_system.so:devel/boost-libs \
 			libmaxminddb.so:net/libmaxminddb \
 			libmbedcrypto.so:security/mbedtls \
 			libmbedtls.so:security/mbedtls \
 			libmbedx509.so:security/mbedtls \
 			libsodium.so:security/libsodium
 
 .include <bsd.port.options.mk>
 
 .if ! ${PORT_OPTIONS:MSTATIC}
 USE_LDCONFIG=	yes
 .endif
 
 .if ${PORT_OPTIONS:MTLS}
 .if ${PORT_OPTIONS:MSTATIC}
 USES+=		ssl:build
 .else
 USES+=		ssl
 .endif
 .endif
 
 post-install:
 	${MKDIR} ${STAGEDIR}${ETCDIR}
 	${INSTALL_DATA} ${WRKSRC}/test/geo.mmdb ${STAGEDIR}${ETCDIR}/geo.mmdb
 	${INSTALL_DATA} ${WRKSRC}/server/pichi.json.default ${STAGEDIR}${ETCDIR}/pichi.json.sample
 	${MKDIR} ${STAGEDIR}${PREFIX}/include
 	${INSTALL_DATA} ${WRKSRC}/include/pichi.h ${STAGEDIR}${PREFIX}/include/pichi.h
 
 .include <bsd.port.mk>