--- /var/portage/gentoo/x11-libs/qwt/qwt-6.1.0.ebuild	2014-01-06 11:01:36.000000000 +0100
+++ qwt-6.1.0.ebuild	2014-04-14 00:31:37.683144175 +0200
@@ -15,13 +15,16 @@
 LICENSE="qwt mathml? ( LGPL-2.1 Nokia-Qt-LGPL-Exception-1.1 )"
 KEYWORDS="~alpha amd64 hppa ~ia64 ppc ppc64 sparc x86 ~amd64-linux ~x86-linux ~x86-macos"
 SLOT="6"
-IUSE="doc examples mathml static-libs svg"
+IUSE="doc examples mathml +qt4 qt5 static-libs svg"
 
 DEPEND="
 	!<x11-libs/qwt-5.2.3
-	|| ( <dev-qt/qtgui-4.8.5:4 dev-qt/designer:4 )
-	doc? ( !<media-libs/coin-3.1.3[doc] )
-	svg? ( dev-qt/qtsvg:4 )"
+	qt4? ( || ( <dev-qt/qtgui-4.8.5:4 dev-qt/designer:4 )
+		svg? ( dev-qt/qtsvg:4 ) )
+	qt5? ( dev-qt/qtwidgets:5
+		dev-qt/qtconcurrent:5
+		svg? ( dev-qt/qtsvg:5 ) )
+	doc? ( !<media-libs/coin-3.1.3[doc] )"
 RDEPEND="${DEPEND}"
 
 S="${WORKDIR}"/${MY_P}
@@ -38,8 +41,6 @@
 		QWT_CONFIG += QwtPlot QwtWidgets QwtDesigner
 		VERSION = ${PV/_*}
 		QWT_VERSION = ${PV/_*}
-		QWT_INSTALL_PLUGINS   = "${EPREFIX}/usr/$(get_libdir)/qt4/plugins/designer"
-		QWT_INSTALL_FEATURES  = "${EPREFIX}/usr/share/qt4/mkspecs/features"
 	EOF
 
 	use mathml && echo "QWT_CONFIG += QwtMathML" >> qwtconfig.pri
@@ -49,37 +50,93 @@
 		QWT_CONFIG += qt warn_on thread release no_keywords
 	EOF
 
-	sed \
-		-e 's/target doc/target/' \
-		-e "/^TARGET/s:(qwt):(qwt6):g" \
-		-i src/src.pro || die
-
-	sed \
-		-e '/qwtAddLibrary/s:(qwt):(qwt6):g' \
-		-i qwt.prf designer/designer.pro examples/examples.pri \
-		textengines/mathml/qwtmathml.prf textengines/textengines.pri || die
-
 	MULTIBUILD_VARIANTS=( )
-	use static-libs && MULTIBUILD_VARIANTS+=( static )
-	MULTIBUILD_VARIANTS+=( shared )
-
-	qt4-r2_src_prepare
+	if use qt4; then
+		use static-libs && MULTIBUILD_VARIANTS+=( qt4-static )
+		MULTIBUILD_VARIANTS+=( qt4-shared )
+	fi
+
+	if use qt5; then
+                use static-libs && MULTIBUILD_VARIANTS+=( qt5-static )
+                MULTIBUILD_VARIANTS+=( qt5-shared )
+        fi
 
 	multibuild_copy_sources
+
 	preparation() {
-		[[ ${MULTIBUILD_VARIANT} == shared ]] && \
-			echo "QWT_CONFIG += QwtDll" >> "${BUILD_DIR}"/qwtconfig.pri
+		if [[ ${MULTIBUILD_VARIANT} == *-shared ]]; then
+			echo "QWT_CONFIG += QwtDll" >> qwtconfig.pri
+		fi
+
+		case "${MULTIBUILD_VARIANT}" in
+			qt4-*)
+				cat >> qwtconfig.pri <<-EOF
+					QWT_INSTALL_PLUGINS   = "${EPREFIX}/usr/$(get_libdir)/qt4/plugins/designer"
+					QWT_INSTALL_FEATURES  = "${EPREFIX}/usr/share/qt4/mkspecs/features"
+				EOF
+				sed \
+					-e 's/target doc/target/' \
+					-e "/^TARGET/s:(qwt):(qwt6-qt4):g" \
+					-i src/src.pro || die
+
+				sed \
+					-e '/qwtAddLibrary/s:(qwt):(qwt6-qt4):g' \
+					-i qwt.prf designer/designer.pro examples/examples.pri \
+					textengines/mathml/qwtmathml.prf textengines/textengines.pri || die
+
+				qt4-r2_src_prepare
+			;;
+			qt5-*)
+				cat >> qwtconfig.pri <<-EOF
+					QWT_INSTALL_PLUGINS   = "${EPREFIX}/usr/$(get_libdir)/qt5/plugins/designer"
+					QWT_INSTALL_FEATURES  = "${EPREFIX}/usr/share/qt5/mkspecs/features"
+				EOF
+				sed \
+					-e 's/target doc/target/' \
+					-e "/^TARGET/s:(qwt):(qwt6-qt5):g" \
+					-i src/src.pro || die
+
+				sed \
+					-e '/qwtAddLibrary/s:(qwt):(qwt6-qt5):g' \
+					-i qwt.prf designer/designer.pro examples/examples.pri \
+					textengines/mathml/qwtmathml.prf textengines/textengines.pri || die
+			;;
+		esac
 	}
 
-	multibuild_foreach_variant preparation
+	multibuild_foreach_variant run_in_build_dir preparation
 }
 
+
+
 src_configure() {
-	multibuild_parallel_foreach_variant run_in_build_dir qt4-r2_src_configure
+	configuration() {
+		case "${MULTIBUILD_VARIANT}" in
+                        qt4-*)
+				qt4-r2_src_configure
+                        ;;
+                        qt5-*)
+				/usr/lib/qt5/bin/qmake
+                        ;;
+                esac
+
+	}
+	multibuild_parallel_foreach_variant run_in_build_dir configuration
 }
 
 src_compile() {
-	multibuild_foreach_variant run_in_build_dir qt4-r2_src_compile
+	compilation() {
+		case "${MULTIBUILD_VARIANT}" in
+                        qt4-*)
+                                qt4-r2_src_compile
+                        ;;
+                        qt5-*)
+                                emake
+                        ;;
+                esac
+
+	}
+	multibuild_foreach_variant run_in_build_dir compilation
 }
 
 src_test() {
@@ -88,12 +145,23 @@
 		eqmake4 examples.pro
 		emake
 	}
-	multibuild_foreach_variant run_in_build_dir testing
+#	multibuild_foreach_variant run_in_build_dir testing
 }
 
 src_install () {
+	installation() {
+		case "${MULTIBUILD_VARIANT}" in
+                        qt4-*)
+                                qt4-r2_src_install
+                        ;;
+                        qt5-*)
+                                emake INSTALL_ROOT="${D}" install
+                        ;;
+                esac
+	}
+
 	rm -f doc/man/*/{_,deprecated}* || die
-	multibuild_foreach_variant run_in_build_dir qt4-r2_src_install
+	multibuild_foreach_variant run_in_build_dir installation
 
 	use doc && dohtml -r doc/html/*