Index: head/misc/compat9x/Makefile
===================================================================
--- head/misc/compat9x/Makefile	(revision 437936)
+++ head/misc/compat9x/Makefile	(revision 437937)
@@ -1,43 +1,39 @@
 # $FreeBSD$
 
 PORTNAME=	compat9x
 PORTVERSION=	9.3.903000.20161027
 CATEGORIES=	misc
 MASTER_SITES=	LOCAL/des
 PKGNAMESUFFIX=	-${ARCH}
 DISTNAME=	${PORTNAME}-${ARCH}-${PORTVERSION}
 
 MAINTAINER=	des@FreeBSD.org
 COMMENT=	Convenience package to install the compat9x libraries
 
 USES=		tar:xz
 NO_BUILD=	yes
 ONLY_FOR_ARCHS=	i386 amd64
 PLIST=		${PKGDIR}/pkg-plist.${ARCH}
 TARGET_DIR=	${PREFIX}/lib/compat
 TARGET32_DIR=	${PREFIX}/lib32/compat
 USE_LDCONFIG=	${TARGET_DIR}
 
 .include <bsd.port.pre.mk>
 
-.if ${OSVERSION} < 900000
-IGNORE=		is for FreeBSD 9.x and newer
-.endif
-
-.if ${OSVERSION} >= 1100000
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1100000
 RUN_DEPENDS=	compat10x-${ARCH}>=0:misc/compat10x
 .endif
 
 .if ${ARCH} == amd64
 USE_LDCONFIG32=	${TARGET32_DIR}
 .endif
 
 do-install:
 	@${MKDIR} -m 0755 ${STAGEDIR}${TARGET_DIR}
 	(cd ${WRKSRC}/lib && ${INSTALL_LIB} *.so.* ${STAGEDIR}${TARGET_DIR})
 .if ${ARCH} == amd64
 	@${MKDIR} ${STAGEDIR}${TARGET32_DIR}
 	(cd ${WRKSRC}/lib32 && ${INSTALL_LIB} *.so.* ${STAGEDIR}${TARGET32_DIR})
 .endif
 
 .include <bsd.port.post.mk>
Index: head/misc/compat9x/pkg-descr
===================================================================
--- head/misc/compat9x/pkg-descr	(revision 437936)
+++ head/misc/compat9x/pkg-descr	(revision 437937)
@@ -1,12 +1,12 @@
 This package allows you to install the compat9x libraries on your
 system, so you can use legacy binaries that depend on them.
 
 Ports usage example:
 
 --
 .include <bsd.port.pre.mk>
 
-.if ${OSVERSION} >= 1000009
+.if ${OPSYS} == FreeBSD && ${OSVERSION} >= 1000009
 LIB_DEPENDS+=	archive.5:misc/compat9x
 .endif
 --