Index: multimedia/phonon-gstreamer/Makefile
===================================================================
--- multimedia/phonon-gstreamer/Makefile	(revision 489426)
+++ multimedia/phonon-gstreamer/Makefile	(working copy)
@@ -35,7 +35,7 @@
 USE_QT=		corelib gui opengl phonon \
 		qmake_build moc_build rcc_build uic_build
 .  else
-USES+=		kde:5 qt:5
+USES+=		compiler:c++11-lang kde:5 qt:5
 USE_KDE=	ecm
 USE_QT=		core gui opengl phonon4 widgets x11extras \
 		buildtools_build qmake_build
Index: www/otter-browser/Makefile
===================================================================
--- www/otter-browser/Makefile	(revision 489426)
+++ www/otter-browser/Makefile	(working copy)
@@ -23,7 +23,9 @@
 
 OPTIONS_MULTI=		BACKEND
 OPTIONS_MULTI_BACKEND=	QTWEBENGINE QTWEBKIT
-OPTIONS_DEFAULT=	QTWEBENGINE QTWEBKIT
+OPTIONS_DEFAULT=	QTWEBKIT
+OPTIONS_DEFAULT_amd64=	QTWEBENGINE
+OPTIONS_DEFAULT_i386=	QTWEBENGINE
 
 QTWEBENGINE_DESC=	Build QtWebEngine backend
 QTWEBKIT_DESC=		Build QtWebKit backend
Index: x11-toolkits/plasma5-kdeplasma-addons/Makefile
===================================================================
--- x11-toolkits/plasma5-kdeplasma-addons/Makefile	(revision 489426)
+++ x11-toolkits/plasma5-kdeplasma-addons/Makefile	(working copy)
@@ -16,7 +16,13 @@
 		plasma-framework plasma-workspace purpose runner service solid \
 		sonnet textwidgets unitconversion widgetsaddons windowsystem xmlgui
 USE_QT=		core dbus declarative graphicaleffects gui location network \
-		printsupport script webchannel webengine widgets x11extras xml \
+		printsupport script webchannel widgets x11extras xml \
 		buildtools_build qmake_build
 
+OPTIONS_DEFAULT=	QTWEBENGINE
+OPTIONS_DEFAULT_amd64=	QTWEBENGINE
+OPTIONS_DEFAULT_i386=	QTWEBENGINE
+
+QTWEBENGINE_USE=	qt=webengine
+
 .include <bsd.port.mk>
Index: www/qutebrowser/Makefile
===================================================================
--- www/qutebrowser/Makefile	(revision 489781)
+++ www/qutebrowser/Makefile	(working copy)
@@ -32,7 +32,9 @@
 
 OPTIONS_MULTI=	BACKEND
 OPTIONS_MULTI_BACKEND=	WEBKIT WEBENGINE
-OPTIONS_DEFAULT=	WEBKIT WEBENGINE
+OPTIONS_DEFAULT=	WEBKIT
+OPTIONS_DEFAULT_amd64=	WEBENGINE
+OPTIONS_DEFAULT_i386=	WEBENGINE
 
 WEBENGINE_DESC=		WebEngine webpage renderer support
 
Index: games/knights/Makefile
===================================================================
--- games/knights/Makefile	(revision 490081)
+++ games/knights/Makefile	(working copy)
@@ -12,7 +12,7 @@
 
 LICENSE=	GPLv2
 
-USES=		cmake kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:xz
 USE_KDE=	auth codecs completion config configwidgets coreaddons \
 		crash dbusaddons i18n libkdegames package plasma-framework \
 		plotting service solid sonnet textwidgets wallet \
Index: games/ksudoku/Makefile
===================================================================
--- games/ksudoku/Makefile	(revision 490521)
+++ games/ksudoku/Makefile	(working copy)
@@ -8,7 +8,7 @@
 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_GL=		gl glu
 USE_KDE=	archive auth codecs completion config configwidgets \
 		coreaddons crash ecm guiaddons i18n jobwidgets kio \
Index: graphics/showimage/Makefile
===================================================================
--- graphics/showimage/Makefile	(revision 490521)
+++ graphics/showimage/Makefile	(working copy)
@@ -14,7 +14,7 @@
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-USES=		cmake kde:5 qt:5 tar:bzip2
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:bzip2
 USE_KDE=	auth bookmarks codecs completion config configwidgets \
 		coreaddons ecm i18n itemviews jobwidgets kio service solid \
 		widgetsaddons xmlgui
Index: x11-fm/krusader2/Makefile
===================================================================
--- x11-fm/krusader2/Makefile	(revision 490521)
+++ x11-fm/krusader2/Makefile	(working copy)
@@ -15,7 +15,7 @@
 
 CONFLICTS_INSTALL=	krusader2-kde4
 
-USES=		cmake gettext kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang gettext kde:5 qt:5 tar:xz
 USE_KDE=	archive auth auth bookmarks codecs completion config \
 		configwidgets coreaddons doctools ecm guiaddons i18n \
 		iconthemes itemviews jobwidgets kio notifications parts \
Index: audio/juk/Makefile
===================================================================
--- audio/juk/Makefile	(revision 490521)
+++ audio/juk/Makefile	(working copy)
@@ -12,7 +12,7 @@
 
 LIB_DEPENDS=	libtag.so:audio/taglib
 
-USES=		cmake kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang kde:5 qt:5 tar:xz
 USE_KDE=	auth bookmarks codecs completion config configwidgets \
 		coreaddons crash globalaccel i18n iconthemes itemviews \
 		jobwidgets kio notifications service solid sonnet textwidgets \
Index: multimedia/kaffeine/Makefile
===================================================================
--- multimedia/kaffeine/Makefile	(revision 490521)
+++ multimedia/kaffeine/Makefile	(working copy)
@@ -17,8 +17,8 @@
 LIB_DEPENDS=	libvlc.so:multimedia/vlc \
 		libdvbv5.so:multimedia/libv4l
 
-USES=		cmake cpe desktop-file-utils gettext pkgconfig \
-		kde:5 qt:5 tar:xz
+USES=		cmake compiler:c++11-lang cpe desktop-file-utils gettext \
+		pkgconfig kde:5 qt:5 tar:xz
 USE_KDE=	auth bookmarks codecs completion config configwidgets \
 		coreaddons i18n itemviews kio solid dbusaddons jobwidgets \
 		service widgetsaddons windowsystem xmlgui