Index: head/math/octave-forge-audio/Makefile
===================================================================
--- head/math/octave-forge-audio/Makefile	(revision 523641)
+++ head/math/octave-forge-audio/Makefile	(revision 523642)
@@ -1,29 +1,31 @@
 # Created by: Stephen Montgomery-Smith <stephen@math.missouri.edu>
 # $FreeBSD$
 
 PORTNAME=	octave-forge-audio
 PORTVERSION=	2.0.0
 CATEGORIES=	math
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	Octave-forge package ${OCTAVE_PKGNAME}
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/../COPYING
 
 LIB_DEPENDS+=	librtmidi.so:audio/rtmidi
 
+USES=		pkgconfig
+
 # OCTSRC is the name of the directory of the package.
 # It is usually ${OCTAVE_PKGNAME} or ${DISTNAME}.
 OCTSRC=		${DISTNAME}
 
 WRKSRC=		${WRKDIR}/${OCTSRC}/src
 GNU_CONFIGURE=	yes
 
 .include "${.CURDIR}/../../Mk/bsd.octave.mk"
 
 post-build:
 	${RM} ${WRKSRC}/Makefile ${WRKSRC}/configure
 	cd ${WRKDIR} && ${TAR} cfz ${DISTNAME}.tar.gz ${OCTSRC}
 
 .include <bsd.port.mk>