Index: head/benchmarks/stress-ng/Makefile
===================================================================
--- head/benchmarks/stress-ng/Makefile	(revision 561868)
+++ head/benchmarks/stress-ng/Makefile	(revision 561869)
@@ -1,37 +1,40 @@
 # $FreeBSD$
 
 PORTNAME=	stress-ng
 PORTVERSION=	0.12.01
 PORTREVISION=	1
 CATEGORIES=	benchmarks
 MASTER_SITES=	http://kernel.ubuntu.com/~cking/tarballs/stress-ng/
 
 MAINTAINER=	pizzamig@FreeBSD.org
 COMMENT=	Stress test benchmarks
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN_aarch64=	Fails to link: missing sbrk
 
-LIB_DEPENDS=	libinotify.so:devel/libinotify
-
 USES=		compiler:c11 gmake tar:xz
 
 ALL_TARGET=	# empty
 
 PLIST_FILES=	bin/stress-ng man/man1/stress-ng.1.gz
 
-CFLAGS	+=	-I${LOCALBASE}/include
-LDFLAGS	+=	-L${LOCALBASE}/lib -linotify
+OPTIONS_DEFINE=	LIBINOTIFY
+OPTIONS_DEFAULT=	LIBINOTIFY
+LIBINOTIFY_DESC=	Install the kevent based libinotify to enable its stress
+
+LIBINOTIFY_CFLAGS	+=	-I${LOCALBASE}/include
+LIBINOTIFY_LDFLAGS	+=	-L${LOCALBASE}/lib -linotify
+LIBINOTIFY_LIB_DEPENDS=	libinotify.so:devel/libinotify
 
 post-patch:
 	${REINPLACE_CMD} -e \
 		's/int main(void)/int main(void) __attributes__((noinline))/' \
 		${WRKSRC}/stress-atomic.c
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/stress-ng ${STAGEDIR}${PREFIX}/bin
 	${INSTALL_MAN} ${WRKSRC}/stress-ng.1 ${STAGEDIR}${MAN1PREFIX}/man/man1
 
 .include <bsd.port.mk>