Index: Makefile
===================================================================
--- Makefile	(revision 422257)
+++ Makefile	(working copy)
@@ -29,7 +29,7 @@
 CFLAGS+=	-I${LOCALBASE}/include
 
 OPTIONS_DEFINE=		EXAMPLES GTKBACKEND GTKAGGBACKEND QT4AGGBACKEND \
-			TKAGGBACKEND WXAGGBACKEND
+			QT5AGGBACKEND TKAGGBACKEND WXAGGBACKEND
 OPTIONS_DEFAULT=	GTKBACKEND GTKAGGBACKEND TKAGGBACKEND
 OPTIONS_SUB=		yes
 GTKBACKEND_DESC=	GTK backend support
@@ -45,6 +45,11 @@
 QT4AGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}qt4-gui>=4.8.5:x11-toolkits/py-qt4-gui
 QT4AGGBACKEND_VARS=	QT4AGG_BACKEND=True
 QT4AGGBACKEND_VARS_OFF=	QT4AGG_BACKEND=False
+QT5AGGBACKEND_DESC=	Qt5Agg backend support
+QT5AGGBACKEND_BUILD_DEPENDS= 	${PYTHON_PKGNAMEPREFIX}sip>=${SIP_VERSION}:devel/py-sip ${PYTHON_PKGNAMEPREFIX}qt5-widgets>=5.5.1:x11-toolkits/py-qt5-widgets
+QT5AGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}sip>=${SIP_VERSION}:devel/py-sip ${PYTHON_PKGNAMEPREFIX}qt5-widgets>=5.5.1:x11-toolkits/py-qt5-widgets
+QT5AGGBACKEND_VARS=	QT5AGG_BACKEND=True
+QT5AGGBACKEND_VARS_OFF=	QT5AGG_BACKEND=False
 TKAGGBACKEND_DESC=	TKAgg backend support
 TKAGGBACKEND_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:x11-toolkits/py-tkinter
 TKAGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:x11-toolkits/py-tkinter
@@ -63,6 +68,7 @@
 GTKBACKEND_BUILD_DEPENDS=	Xvfb:x11-servers/xorg-vfbserver
 GTKAGGBACKEND_BUILD_DEPENDS=	Xvfb:x11-servers/xorg-vfbserver
 QT4AGGBACKEND_BUILD_DEPENDS+=	Xvfb:x11-servers/xorg-vfbserver
+QT5AGGBACKEND_BUILD_DEPENDS+=	Xvfb:x11-servers/xorg-vfbserver
 TKAGGBACKEND_BUILD_DEPENDS+=	Xvfb:x11-servers/xorg-vfbserver
 WXAGGBACKEND_BUILD_DEPENDS=	Xvfb:x11-servers/xorg-vfbserver
 .endif
@@ -82,6 +88,7 @@
 	${REINPLACE_CMD} -e 's|%%GTK_BACKEND%%|${GTK_BACKEND}|g' \
 			 -e 's|%%GTKAGG_BACKEND%%|${GTKAGG_BACKEND}|g' \
 			 -e 's|%%QT4AGG_BACKEND%%|${QT4AGG_BACKEND}|g' \
+			 -e 's|%%QT5AGG_BACKEND%%|${QT5AGG_BACKEND}|g' \
 			 -e 's|%%TKAGG_BACKEND%%|${TKAGG_BACKEND}|g' \
 			 -e 's|%%WXAGG_BACKEND%%|${WXAGG_BACKEND}|g' \
 		${WRKSRC}/setup.cfg
Index: files/patch-setup.cfg
===================================================================
--- files/patch-setup.cfg	(revision 422257)
+++ files/patch-setup.cfg	(working copy)
@@ -61,6 +61,7 @@
 +gtk = %%GTK_BACKEND%%
 +gtkagg = %%GTKAGG_BACKEND%%
 +qt4agg = %%QT4AGG_BACKEND%%
++qt5agg = %%QT5AGG_BACKEND%%
 +tkagg = %%TKAGG_BACKEND%%
 +wxagg = %%WXAGG_BACKEND%%
 +#macosx = False