Index: head/math/py-networkx/Makefile
===================================================================
--- head/math/py-networkx/Makefile	(revision 405275)
+++ head/math/py-networkx/Makefile	(revision 405276)
@@ -1,55 +1,62 @@
 # Created by: dikshie
 # $FreeBSD$
 
 PORTNAME=	networkx
 PORTVERSION=	1.10
+PORTREVISION=	1
 CATEGORIES=	math python
 MASTER_SITES=	http://networkx.lanl.gov/download/networkx/ \
 		CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	dikshie@sfc.wide.ad.jp
 COMMENT=	Tools for complex networks
 
 LICENSE=	BSD3CLAUSE
 
 RUN_DEPENDS:=	${PYTHON_PKGNAMEPREFIX}decorator>=3.4.0:${PORTSDIR}/devel/py-decorator
 
 #		${PYTHON_PKGNAMEPREFIX}sphinx>=1.2.3:${PORTSDIR}/textproc/py-sphinx \
 #		${PYTHON_PKGNAMEPREFIX}docutils>=0.12:${PORTSDIR}/textproc/py-docutils
 
 NO_ARCH=	yes
-USES=		python:2 shebangfix
+USES=		python shebangfix
 USE_PYTHON=	autoplist concurrent distutils
 
 PLIST_SUB+=	PYTHON_MAJOR_VER=${PYTHON_MAJOR_VER}
 
 OPTIONS_DEFINE=	EXAMPLES YAML
 OPTIONS_GROUP=	MATRIX RENDER
 OPTIONS_GROUP_MATRIX=	NUMPY SCIPY
 OPTIONS_GROUP_RENDER=	MPL GRAPHVIZ
 OPTIONS_DEFAULT=	NUMPY SCIPY MPL GRAPHVIZ YAML
 
 NUMPY_DESC=	Matrix representation of graphs
 NUMPY_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>=1.9.2:${PORTSDIR}/math/py-numpy
 
 SCIPY_DESC=	Sparse matrix representation of graphs
 SCIPY_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}scipy>=0.15.1:${PORTSDIR}/science/py-scipy \
 			${PYTHON_PKGNAMEPREFIX}scikit-sparse>=0.2:${PORTSDIR}/science/py-scikit-sparse
 
 MPL_DESC=	Flexible graph rendering
 MPL_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}matplotlib>=1.4.0:${PORTSDIR}/math/py-matplotlib
 
 GRAPHVIZ_DESC=	Additional graph layout and rendering algorithms
 GRAPHVIZ_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}graphviz>=1.2:${PORTSDIR}/graphics/py-graphviz
 
 YAML_DESC=	Reading and writing YAML files
 YAML_RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}yaml>=0:${PORTSDIR}/devel/py-yaml
 
+.include <bsd.port.pre.mk>
+
+.if ${PYTHON_REL} >= 3000 && (${PORT_OPTIONS:MMPL} || ${PORT_OPTIONS:MGRAPHVIZ})
+BROKEN=		Neither math/py-matplotlib nor graphics/py-graphviz support Python 3.x yet. Please disable both the MPL and GRAPHVIZ options
+.endif
+
 PORTEXAMPLES=	*
 
 post-install:
 	${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	cd ${WRKSRC}/examples && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR}
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>