Index: head/science/py-OpenFermion/Makefile
===================================================================
--- head/science/py-OpenFermion/Makefile	(revision 465639)
+++ head/science/py-OpenFermion/Makefile	(revision 465640)
@@ -1,30 +1,32 @@
 # $FreeBSD$
 
 PORTNAME=	OpenFermion
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.4-29
 DISTVERSIONSUFFIX=	-g781d0a7
+PORTREVISION=	1
 CATEGORIES=	science python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Electronic structure package for quantum computers
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+py27_BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${FLAVOR}
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cvxopt>0:math/py-cvxopt@${FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}h5py>0:science/py-h5py@${FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}networkx>0:math/py-networkx@${FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>=0.18.0:science/py-scipy@${FLAVOR} \
 		${PYNUMPY}
 
 USES=		python
 USE_GITHUB=	yes
 GH_ACCOUNT=	quantumlib
 USE_PYTHON=	distutils autoplist
 NO_ARCH=	yes
 
 .include <bsd.port.mk>