Index: Makefile
===================================================================
--- Makefile	(revision 399083)
+++ Makefile	(working copy)
@@ -35,6 +35,11 @@
 GTKAGGBACKEND_USE=	GNOME=gtk20,pygtk2
 GTKAGGBACKEND_VARS=	GTKAGG_BACKEND=True
 GTKAGGBACKEND_VARS_OFF=	GTKAGG_BACKEND=False
+QT4AGGBACKEND_DESC=	Qt4Agg backend support
+QT4AGGBACKEND_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}qt4-gui>=4.8.5:${PORTSDIR}/x11-toolkits/py-qt4-gui
+QT4AGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}qt4-gui>=4.8.5:${PORTSDIR}/x11-toolkits/py-qt4-gui
+QT4AGGBACKEND_VARS=	QT4AGG_BACKEND=True
+QT4AGGBACKEND_VARS_OFF=	QT4AGG_BACKEND=False
 TKAGGBACKEND_DESC=	TKAgg backend support
 TKAGGBACKEND_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:${PORTSDIR}/x11-toolkits/py-tkinter
 TKAGGBACKEND_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}tkinter>0:${PORTSDIR}/x11-toolkits/py-tkinter
@@ -52,6 +57,7 @@
 .if defined(PACKAGE_BUILDING)
 GTKBACKEND_BUILD_DEPENDS=	Xvfb:${PORTSDIR}/x11-servers/xorg-vfbserver
 GTKAGGBACKEND_BUILD_DEPENDS=	Xvfb:${PORTSDIR}/x11-servers/xorg-vfbserver
+QT4AGGBACKEND_BUILD_DEPENDS+=	Xvfb:${PORTSDIR}/x11-servers/xorg-vfbserver
 TKAGGBACKEND_BUILD_DEPENDS+=	Xvfb:${PORTSDIR}/x11-servers/xorg-vfbserver
 WXAGGBACKEND_BUILD_DEPENDS=	Xvfb:${PORTSDIR}/x11-servers/xorg-vfbserver
 .endif
@@ -70,6 +76,7 @@
 		${WRKSRC}/setupext.py
 	${REINPLACE_CMD} -e 's|%%GTK_BACKEND%%|${GTK_BACKEND}|g' \
 			 -e 's|%%GTKAGG_BACKEND%%|${GTKAGG_BACKEND}|g' \
+			 -e 's|%%QT4AGG_BACKEND%%|${QT4AGG_BACKEND}|g' \
 			 -e 's|%%TKAGG_BACKEND%%|${TKAGG_BACKEND}|g' \
 			 -e 's|%%WXAGG_BACKEND%%|${WXAGG_BACKEND}|g' \
 		${WRKSRC}/setup.cfg
@@ -89,6 +96,9 @@
 post-install-GTKAGGBACKEND-on:
 	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib/backends/_gtkagg.so
 
+post-install-QT4AGGBACKEND-on:
+	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib/backends/_qt4agg.so
+
 post-install-TKAGGBACKEND-on:
 	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/matplotlib/backends/_tkagg.so
 
Index: files/patch-setup.cfg
===================================================================
--- files/patch-setup.cfg	(revision 399083)
+++ files/patch-setup.cfg	(working copy)
@@ -60,6 +60,7 @@
 +#
 +gtk = %%GTK_BACKEND%%
 +gtkagg = %%GTKAGG_BACKEND%%
++qt4agg = %%QT4AGG_BACKEND%%
 +tkagg = %%TKAGG_BACKEND%%
 +wxagg = %%WXAGG_BACKEND%%
 +#macosx = False