--- gnuplot-5.0.4.ebuild.orig	2016-09-21 19:50:38.949859100 +0100
+++ gnuplot-5.0.4.ebuild.orig	2016-09-21 20:33:05.759836471 +0100
@@ -28,7 +28,7 @@ 
 
 LICENSE="gnuplot bitmap? ( free-noncomm )"
 SLOT="0"
-IUSE="aqua bitmap cairo compat doc examples +gd ggi latex libcaca libcerf lua qt4 readline svga wxwidgets X"
+IUSE="aqua bitmap cairo compat doc examples +gd ggi latex libcaca libcerf lua qt5 readline svga wxwidgets X"
 
 RDEPEND="
 	cairo? (
@@ -43,9 +43,9 @@ 
 			>=dev-texlive/texlive-latexrecommended-2008-r2 ) )
 	libcaca? ( media-libs/libcaca )
 	lua? ( dev-lang/lua:0 )
-	qt4? ( >=dev-qt/qtcore-4.5:4
-		>=dev-qt/qtgui-4.5:4
-		>=dev-qt/qtsvg-4.5:4 )
+	qt5? ( dev-qt/qtcore:5
+	    dev-qt/qtgui:5
+		dev-qt/qtnetwork:5 )
 	readline? ( sys-libs/readline:0 )
 	libcerf? ( sci-libs/libcerf )
 	svga? ( media-libs/svgalib )
@@ -145,7 +145,8 @@ 
 		$(use_with svga linux-vga) \
 		$(use_with X x) \
 		--enable-stats \
-		$(use_with qt4 qt qt4) \
+		$(if ! use qt5; then echo '--with-qt=no'; fi)
+		$(use_with qt5 qt qt5) \
 		$(use_enable wxwidgets) \
 		DIST_CONTACT="https://bugs.gentoo.org/" \
 		EMACS=no