Index: head/devel/librevisa/Makefile
===================================================================
--- head/devel/librevisa/Makefile	(revision 497587)
+++ head/devel/librevisa/Makefile	(revision 497588)
@@ -1,23 +1,23 @@
 # Created by: Uffe Jakobsen <uffe@uffe.org>
 # $FreeBSD$
 
 PORTNAME=	librevisa
 PORTVERSION=	0.0.20130412
 PORTREVISION=	1
 CATEGORIES=	devel
 MASTER_SITES=	http://www.librevisa.org/download/
 
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Library for interfacing test and measurement equipment
 
+BUILD_DEPENDS=	pkg-config:devel/pkgconf
+
 USES=		gmake pathfix libtool
 USE_LDCONFIG=	yes
-GNU_CONFIGURE=	yes
 
-# Workaround FreeBSD 9.1+ libusb not knowing LIBUSB_CLASS_APPLICATION
-CPPFLAGS+=	-DLIBUSB_CLASS_APPLICATION=0xfe
+GNU_CONFIGURE=	yes
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${LOCALBASE}/lib/libvisa.so
 
 .include <bsd.port.mk>