Index: head/sysutils/google-compute-engine-oslogin/Makefile
===================================================================
--- head/sysutils/google-compute-engine-oslogin/Makefile	(revision 486516)
+++ head/sysutils/google-compute-engine-oslogin/Makefile	(revision 486517)
@@ -1,49 +1,49 @@
 # $FreeBSD$
 
 PORTNAME=	google-compute-engine-oslogin
 DISTVERSION=	1.3.1
 CATEGORIES=	sysutils
 
 MAINTAINER=	helen.koike@collabora.com
 COMMENT=	OS Login Guest Environment for Google Compute Engine
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/../LICENSE
 
 LIB_DEPENDS=	libcurl.so:ftp/curl \
 		libjson-c.so:devel/json-c
 RUN_DEPENDS=	gsed:textproc/gsed \
 		${LOCALBASE}/lib/pam_mkhomedir.so:security/pam_mkhomedir
 
-USES=		gmake localbase:ldflags
+USES=		compiler:c++11-lang gmake localbase:ldflags
 USE_LDCONFIG=	yes
 USE_GITHUB=	yes
 GH_ACCOUNT=	GoogleCloudPlatform
 GH_PROJECT=	compute-image-packages
 GH_TAGNAME=	20181011
 
 MAKE_ARGS=	JSON_INCLUDE_PATH=${LOCALBASE}/include/json-c \
 		BIN_INSTALL_PATH=/bin \
 		PAM_INSTALL_PATH=/lib \
 		AUTHKEYS_INSTALL_PATH=/bin \
 		NSS_LIBRARY_SONAME=nss_oslogin.so.1
 
 WRKSRC_SUBDIR=	google_compute_engine_oslogin
 
 PLIST_SUB=	DISTVERSION=${DISTVERSION}
 
 post-patch:
 	@${REINPLACE_CMD} -e 's!%%PREFIX%%!${PREFIX}!' \
 		${WRKSRC}/bin/google_oslogin_control \
 		${WRKSRC}/libnss_cache_oslogin/nss_cache_oslogin.c \
 		${WRKSRC}/nss_cache/nss_cache.cc
 
 post-install:
 	${LN} -sf libnss_${PORTNAME}-${DISTVERSION}.so ${STAGEDIR}${PREFIX}/lib/nss_oslogin.so.1
 	${LN} -sf libnss_cache_${PORTNAME}-${DISTVERSION}.so ${STAGEDIR}${PREFIX}/lib/nss_cache_oslogin.so.1
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/bin/google_authorized_keys \
 		${STAGEDIR}${PREFIX}/lib/libnss_google-compute-engine-oslogin-${DISTVERSION}.so \
 		${STAGEDIR}${PREFIX}/lib/pam_oslogin_admin.so \
 		${STAGEDIR}${PREFIX}/lib/pam_oslogin_login.so
 
 .include <bsd.port.mk>