diff -u /usr/ports/audio/qjackctl/Makefile audio/qjackctl/Makefile
--- /usr/ports/audio/qjackctl/Makefile	2015-04-03 07:04:58.715826000 +0900
+++ audio/qjackctl/Makefile	2015-04-07 00:00:00.000000000 +0900
@@ -2,7 +2,7 @@
 # $FreeBSD: head/audio/qjackctl/Makefile 383073 2015-04-02 21:21:39Z pawel $
 
 PORTNAME=	qjackctl
-DISTVERSION=	0.3.13
+PORTVERSION=	0.3.13
 CATEGORIES=	audio
 MASTER_SITES=	SF
 
@@ -15,8 +15,6 @@
 		libjack.so:${PORTSDIR}/audio/jack
 
 USES=		gmake
-USE_QT4=	corelib dbus gui xml \
-		linguisttools_build moc_build qmake_build rcc_build uic_build
 QT_NONSTANDARD=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	ac_cv_path_ac_moc=${MOC} \
@@ -28,6 +26,20 @@
 INSTALLS_ICONS=	yes
 MAKE_JOBS_UNSAFE=yes
 
+OPTIONS_SINGLE=		TOOLKIT
+OPTIONS_SINGLE_TOOLKIT=	QT4 QT5
+OPTIONS_DEFAULT=	QT4
+
+QT4_USE=		qt4=corelib,dbus,gui,xml \
+			qt4=linguisttools_build \
+			qt4=moc_build,qmake_build,rcc_build,uic_build
+QT4_CONFIGURE_ENABLE=	qt4
+QT5_USE=		qt5=core,dbus,gui,widgets,xml \
+			qt5=buildtools_build,linguisttools_build,qmake_build
+QT5_CXXFLAGS=		-fPIC
+QT5_CONFIGURE_ENABLE=	qt5
+TOOLKIT_DESC=		Qt toolkit
+
 post-configure:
 	@cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${QMAKE} -o ${PORTNAME}.mak \
 		${QMAKE_ARGS}
Common subdirectories: /usr/ports/audio/qjackctl/files and audio/qjackctl/files