Index: head/devel/py-backports_abc/Makefile
===================================================================
--- head/devel/py-backports_abc/Makefile	(revision 457549)
+++ head/devel/py-backports_abc/Makefile	(revision 457550)
@@ -1,18 +1,19 @@
 # Created by: Grzegorz Blach <gblach@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	backports_abc
 PORTVERSION=	0.5
 CATEGORIES=	devel python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	gblach@FreeBSD.org
 COMMENT=	Backport of recent additions to the 'collections.abc' module
 
 LICENSE=	PSFL
 
-USES=		python
+NO_ARCH=	yes
+USES=		python:-3.4
 USE_PYTHON=	autoplist distutils
 
 .include <bsd.port.mk>