Index: head/devel/libical/Makefile
===================================================================
--- head/devel/libical/Makefile	(revision 465323)
+++ head/devel/libical/Makefile	(revision 465324)
@@ -1,30 +1,30 @@
 # Created by: Joe Kelsey
 # $FreeBSD$
 
 PORTNAME=	libical
 PORTVERSION=	2.0.0
 DISTVERSIONPREFIX=	v
 PORTREVISION=	3
 CATEGORIES=	devel
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	Implementation of the IETF Calendaring and Scheduling protocols
 
 LICENSE=	LGPL21 MPL10
 LICENSE_COMB=	dual
 
 LIB_DEPENDS=	libicuuc.so:devel/icu
 
-USES=		cmake pathfix perl5
+USES=		cmake compiler:c++11-lib pathfix perl5
 USE_GITHUB=	yes
 USE_GNOME=	introspection:build
 USE_PERL5=	build
 USE_LDCONFIG=	yes
 
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} == "amd64" || ${ARCH} == "ia64"
 CFLAGS+=	-fPIC
 .endif
 
 .include <bsd.port.post.mk>