Index: head/deskutils/kchmviewer/Makefile
===================================================================
--- head/deskutils/kchmviewer/Makefile	(revision 500190)
+++ head/deskutils/kchmviewer/Makefile	(revision 500191)
@@ -1,23 +1,23 @@
 # Created by: Markus Brueffer <markus@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	kchmviewer
 PORTVERSION=	7.7
 PORTREVISION=	3
 CATEGORIES=	deskutils kde
 MASTER_SITES=	SF
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	KDE viewer for CHM files
 
 LIB_DEPENDS=	libchm.so:misc/chmlib \
 		libzip.so:archivers/libzip
 
-USES=		dos2unix qmake:outsource qt:5 
+USES=		compiler:c++11-lang dos2unix qmake:outsource qt:5 
 USE_QT=		core dbus gui network printsupport webkit widgets xml \
 		buildtools_build qmake_build
 USE_XORG=	x11
 
 DOS2UNIX_GLOB=	*.cpp *.h *.pro *.ui
 
 .include <bsd.port.mk>
Index: head/games/kigo/Makefile
===================================================================
--- head/games/kigo/Makefile	(revision 500190)
+++ head/games/kigo/Makefile	(revision 500191)
@@ -1,21 +1,21 @@
 # $FreeBSD$
 
 PORTNAME=	kigo
 DISTVERSION=	${KDE_APPLICATIONS_VERSION}
 CATEGORIES=	games kde kde-applications
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	${${PORTNAME}_DESC}
 
-USES=		cmake kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:xz
 USE_KDE=	attica auth codecs completion config configwidgets \
 		coreaddons crash dbusaddons ecm i18n jobwidgets kio \
 		libkdegames newstuff notifyconfig service sonnet textwidgets \
 		widgetsaddons xmlgui
 USE_QT=		core dbus declarative gui network svg widgets xml \
 		buildtools_build qmake_build
 
 OPTIONS_DEFINE=	DOCS
 
 .include <${.CURDIR}/../kdegames/Makefile.common>
 .include <bsd.port.mk>
Index: head/games/konquest/Makefile
===================================================================
--- head/games/konquest/Makefile	(revision 500190)
+++ head/games/konquest/Makefile	(revision 500191)
@@ -1,20 +1,20 @@
 # $FreeBSD$
 
 PORTNAME=	konquest
 DISTVERSION=	${KDE_APPLICATIONS_VERSION}
 CATEGORIES=	games kde kde-applications
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	${${PORTNAME}_DESC}
 
-USES=		cmake kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:xz
 USE_KDE=	auth codecs config configwidgets coreaddons crash \
 		dbusaddons ecm guiaddons i18n libkdegames widgetsaddons \
 		xmlgui
 USE_QT=		core dbus declarative gui network svg widgets xml \
 		buildtools_build qmake_build
 
 OPTIONS_DEFINE=	DOCS
 
 .include <${.CURDIR}/../kdegames/Makefile.common>
 .include <bsd.port.mk>
Index: head/misc/kookbook/Makefile
===================================================================
--- head/misc/kookbook/Makefile	(revision 500190)
+++ head/misc/kookbook/Makefile	(revision 500191)
@@ -1,21 +1,21 @@
 # $FreeBSD$
 
 PORTNAME=	kookbook
 DISTVERSION=	0.2.1
 CATEGORIES=	misc kde
 MASTER_SITES=	KDE/unstable/${PORTNAME}/
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	Recipes database with Markdown support
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${LOCALBASE}/lib/libmarkdown.a:textproc/discount
 
-USES=		cmake kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:xz
 USE_QT=		core declarative gui network printsupport widgets \
 		qmake_build buildtools_build
 USE_KDE=	ecm_build
 
 .include <bsd.port.mk>
Index: head/net-p2p/ktorrent/Makefile
===================================================================
--- head/net-p2p/ktorrent/Makefile	(revision 500190)
+++ head/net-p2p/ktorrent/Makefile	(revision 500191)
@@ -1,29 +1,29 @@
 # $FreeBSD$
 
 # TODO: once plasma5 ports are in, re-add dependency on workspace.
 
 PORTNAME=	ktorrent
 DISTVERSION=	5.1.1
 PORTREVISION=	2
 CATEGORIES=	net-p2p kde
 MASTER_SITES=	KDE/stable/${PORTNAME}/${DISTVERSION}/
 
 MAINTAINER=	kde@FreeBSD.org
 COMMENT=	BitTorrent client for KDE
 
-USES=		cmake gettext kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang gettext kde:5 qt:5 tar:xz
 
 LIB_DEPENDS=	libKF5Torrent.so:net-p2p/libktorrent \
 		libgcrypt.so:security/libgcrypt \
 		libgmp.so:math/gmp \
 		libtag.so:audio/taglib
 USE_KDE=	archive auth bookmarks codecs completion config configwidgets \
 		coreaddons crash dbusaddons dnssd i18n iconthemes itemviews \
 		jobwidgets kcmutils kdewebkit kio kross notifications \
 		notifyconfig parts plotting service \
 		solid sonnet syndication textwidgets widgetsaddons \
 		windowsystem xmlgui
 USE_QT=		core dbus gui network phonon4 script webkit widgets xml \
 		buildtools_build qmake_build
 
 .include <bsd.port.mk>