Index: head/biology/py-macs2/Makefile
===================================================================
--- head/biology/py-macs2/Makefile	(revision 455560)
+++ head/biology/py-macs2/Makefile	(revision 455561)
@@ -1,31 +1,31 @@
 # $FreeBSD$
 
 PORTNAME=	macs2
 PORTVERSION=	2.1.0.p20170505
 CATEGORIES=	biology python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	jwb@FreeBSD.org
 COMMENT=	Analysis of chromatin immunoprecipitation (ChIP) sequences
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}numpy>0:math/py-numpy@${PY_FLAVOR}
+BUILD_DEPENDS=	${PYNUMPY}
 
-USES=		python
+USES=		python:2.7
 USE_PYTHON=	autoplist concurrent cython distutils
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	taoliu
 GH_PROJECT=	MACS
 GH_TAGNAME=	6946b2f
 
 PYSETUP=	setup_w_cython.py
 
 post-stage:
 	${STRIP_CMD} \
 		${STAGEDIR}${PYTHON_SITELIBDIR}/MACS2/*.so \
 		${STAGEDIR}${PYTHON_SITELIBDIR}/MACS2/*/*.so
 
 .include <bsd.port.mk>