Index: head/print/xfce4-print/Makefile
===================================================================
--- head/print/xfce4-print/Makefile	(revision 515608)
+++ head/print/xfce4-print/Makefile	(revision 515609)
@@ -1,57 +1,57 @@
 # Created by: James Earl <jdearl@telus.net>
 # $FreeBSD$
 
 PORTNAME=	xfce4-print
 PORTVERSION=	4.6.1
 PORTREVISION=	16
 CATEGORIES=	print xfce
 MASTER_SITES=	XFCE/archive
 DISTNAME=	xfprint-${DISTVERSIONFULL}
 DIST_SUBDIR=	xfce4
 
 MAINTAINER=	xfce@FreeBSD.org
 COMMENT=	Print system support for the Xfce Desktop
 
 LICENSE=	GPLv2
 
 BUILD_DEPENDS=	a2ps:print/a2ps
 RUN_DEPENDS=	a2ps:print/a2ps
 LIB_DEPENDS=	libfontconfig.so:x11-fonts/fontconfig \
 		libfreetype.so:print/freetype2
 
-USES=		gettext-tools gmake gnome libtool pathfix pkgconfig \
-		tar:bzip2 xfce:gtk2 xorg
+USES=		compiler:c11 gettext-tools gmake gnome libtool pathfix \
+		pkgconfig tar:bzip2 xfce:gtk2 xorg
 USE_GNOME=	cairo glib20 gtk20 intltool
 USE_LDCONFIG=	yes
 USE_XFCE=	libgui xfconf
 USE_XORG=	x11
 
 GNU_CONFIGURE=	yes
 INSTALLS_ICONS=	yes
 INSTALL_TARGET=	install-strip
 
 OPTIONS_DEFINE=		LETTER NLS
 OPTIONS_SINGLE=		PRINTMETHOD
 OPTIONS_SINGLE_PRINTMETHOD=	LPR CUPS
 OPTIONS_DEFAULT=	LPR
 OPTIONS_SUB=		yes
 
 LETTER_DESC=	Use letter paper format instead of A4
 LPR_DESC=	LPR printing system support
 
 CUPS_CONFIGURE_ENABLE=	cups
 CUPS_LIB_DEPENDS=	libcups.so:print/cups
 
 LETTER_CONFIGURE_ENABLE=letter
 LPR_CONFIGURE_ENABLE=	bsdlpr
 LPR_CONFIGURE_WITH=	printcap=/etc/printcap
 
 NLS_CONFIGURE_ENABLE=	nls
 NLS_USES=		gettext-runtime
 
 post-patch:
 	@${REINPLACE_CMD} '/_LDADD =/s/=/= -lX11/' \
 		${WRKSRC}/xfprint/Makefile.in \
 		${WRKSRC}/xfprint-manager/Makefile.in
 
 .include <bsd.port.mk>