Index: head/devel/dee/Makefile
===================================================================
--- head/devel/dee/Makefile	(revision 551432)
+++ head/devel/dee/Makefile	(revision 551433)
@@ -1,36 +1,36 @@
 # Created by: Olivier Duchateau
 # $FreeBSD$
 
 PORTNAME=	dee
 PORTVERSION=	1.2.7
 PORTREVISION=	17
 CATEGORIES=	devel
 MASTER_SITES=	https://launchpadlibrarian.net/151383425/ \
 	https://launchpad.net/${PORTNAME}/1.0/${PORTVERSION}/+download/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Model to synchronize multiple instances over DBus
 
 LICENSE=	GPLv3
 
-EXTRA_PATCHES=	\
-		${FILESDIR}/dee-1.2.7-deprecated-g_type_class_add_private.patch:-p1 \
+EXTRA_PATCHES=	${FILESDIR}/dee-1.2.7-deprecated-g_type_class_add_private.patch:-p1 \
 		${FILESDIR}/vapi-skip-properties.patch:-p1
 
 BUILD_DEPENDS=	vapigen:lang/vala
 LIB_DEPENDS=	libicutu.so:devel/icu
 
-USES=		gmake gnome libtool localbase pathfix pkgconfig python:3.5+
+USES=		compiler:c11 gmake gnome libtool localbase pathfix pkgconfig \
+		python:3.5+
 GNU_CONFIGURE=	yes
 USE_GNOME=	glib20 introspection:build pygobject3
 USE_LDCONFIG=	yes
 
 CONFIGURE_ARGS=	--disable-gtk-doc-html \
 	--disable-tests \
 	--disable-gcov \
 	--enable-introspection=yes \
 	--without-html-dir
 
 MAKE_ARGS=	PYTHON="${PYTHON_CMD}"
 
 .include <bsd.port.mk>