Index: head/devel/libical-glib/Makefile
===================================================================
--- head/devel/libical-glib/Makefile	(revision 381507)
+++ head/devel/libical-glib/Makefile	(revision 381508)
@@ -1,20 +1,20 @@
 # Created by: Koop Mast <kwm@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	libical-glib
 PORTVERSION=	1.0.1
 CATEGORIES=	devel
 MASTER_SITES=	GNOME
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	Introspection bindings for libical
 
 LIB_DEPENDS=	libical.so:${PORTSDIR}/devel/libical
 
-USES=		gettext gmake libtool pathfix pkgconfig tar:xz
+USES=		compiler:c11 gettext gmake libtool pathfix pkgconfig tar:xz
 USE_GNOME=	glib20 introspection:build libxml2
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 INSTALL_TARGET=install-strip
 
 .include <bsd.port.mk>