Index: head/textproc/libgepub/Makefile
===================================================================
--- head/textproc/libgepub/Makefile	(revision 489187)
+++ head/textproc/libgepub/Makefile	(revision 489188)
@@ -1,20 +1,21 @@
 # $FreeBSD$
 
 PORTNAME=	libgepub
 PORTVERSION=	0.6.0
 CATEGORIES=	textproc gnome
 MASTER_SITES=	GNOME
 
 MAINTAINER=	gnome@FreeBSD.org
 COMMENT=	GObject based library for handling and rendering epub documents
 
 LICENSE=	LGPL21
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libwebkit2gtk-4.0.so:www/webkit2-gtk3 \
 		libsoup-2.4.so:devel/libsoup
 
-USES=		gettext-runtime gnome libarchive meson pkgconfig tar:xz
+USES=		compiler:c11 gettext-runtime gnome libarchive meson pkgconfig \
+		tar:xz
 USE_GNOME=	gtk30 introspection:build libxml2
 
 .include <bsd.port.mk>