Index: head/graphics/klatexformula/Makefile
===================================================================
--- head/graphics/klatexformula/Makefile	(revision 493825)
+++ head/graphics/klatexformula/Makefile	(revision 493826)
@@ -1,34 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	klatexformula
 PORTVERSION=	4.0.0
 PORTREVISION=	1
 CATEGORIES=	graphics
 MASTER_SITES=	SF/${PORTNAME}/${PORTNAME}/${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	hrs@FreeBSD.org
 COMMENT=	Convert LaTeX formula to image
 
 LICENSE=	GPLv2
 
-DEPRECATED=		Qt4 has been EOL since december 2015
-EXPIRATION_DATE=	2019-03-15
-
 BUILD_DEPENDS=	help2man:misc/help2man
 
-USES=		cmake desktop-file-utils ghostscript:run \
+USES=		cmake compiler:c++11-lang desktop-file-utils ghostscript:run \
 		qt:5 shared-mime-info tar:bzip2 localbase
 USE_QT=		core dbus gui sql svg widgets x11extras xml \
 		buildtools_build designer_build linguisttools_build \
 		qmake_build uitools_build
 USE_TEX=	latex dvipsk
 USE_LDCONFIG=	yes
 
 CMAKE_ARGS=	-DKLF_INSTALL_POST_UPDATEMIMEDATABASE=off \
 		-DKLF_INSTALL_SHARE_MAN1_DIR=man/man1
 
 post-patch:
 	${REINPLACE_CMD} '/CMAKE_SYSTEM_NAME STREQUAL/s,Linux,FreeBSD,' \
 		${WRKSRC}/src/klftools/CMakeLists.txt
 
 .include <bsd.port.mk>