Index: head/textproc/p5-CSS-Sass/Makefile
===================================================================
--- head/textproc/p5-CSS-Sass/Makefile	(revision 492223)
+++ head/textproc/p5-CSS-Sass/Makefile	(revision 492224)
@@ -1,42 +1,42 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	CSS-Sass
 PORTVERSION=	3.4.10
 CATEGORIES=	textproc perl5
 MASTER_SITES=	CPAN
 PKGNAMEPREFIX=	p5-
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Compile .scss and .sass files using LibSass
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	p5-ExtUtils-CppGuess>=0.09:devel/p5-ExtUtils-CppGuess \
 		${RUN_DEPENDS}
 RUN_DEPENDS=	p5-Encode-Locale>=0.01:converters/p5-Encode-Locale \
 		p5-Filesys-Notify-KQueue>=0.01:devel/p5-Filesys-Notify-KQueue \
 		p5-Filesys-Notify-Simple>=0.01:devel/p5-Filesys-Notify-Simple
 TEST_DEPENDS=	p5-File-chdir>=0.01:devel/p5-File-chdir \
 		p5-Test-Differences>=0.01:devel/p5-Test-Differences \
 		p5-YAML-LibYAML>=0.01:textproc/p5-YAML-LibYAML
 
-USES=		gmake perl5
+USES=		compiler:c++11-lang gmake perl5
 USE_PERL5=	configure
 
 .include <bsd.port.pre.mk>
 
 .if ${PERL_LEVEL} < 502600
 BUILD_DEPENDS+=	p5-Scalar-List-Utils>=1.45:lang/p5-Scalar-List-Utils
 RUN_DEPENDS+=	p5-Scalar-List-Utils>=1.45:lang/p5-Scalar-List-Utils
 .endif
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/auto/CSS/Sass/Sass.so
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/auto/CSS/Sass/plugins/glob/glob.so
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/auto/CSS/Sass/plugins/img-size/img-size.so
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/auto/CSS/Sass/plugins/math/math.so
 	${STRIP_CMD} ${STAGEDIR}${PREFIX}/${SITE_ARCH_REL}/libsass.so
 
 .include <bsd.port.post.mk>