Index: head/security/R-cran-openssl/Makefile
===================================================================
--- head/security/R-cran-openssl/Makefile	(revision 428462)
+++ head/security/R-cran-openssl/Makefile	(revision 428463)
@@ -1,27 +1,31 @@
 # Created by: TAKATSU Tomonari <tota@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	openssl
 PORTVERSION=	0.9.5
 CATEGORIES=	security
 DISTNAME=	${PORTNAME}_${PORTVERSION}
 
 MAINTAINER=	tota@FreeBSD.org
 COMMENT=	Toolkit for Encryption, Signatures and Certificates Based on OpenSSL
 
 LICENSE=	MIT
 
-USES=	cran:auto-plist,compiles
+USES=		cran:auto-plist,compiles ssl
 
+R_POSTCMD_INSTALL_OPTIONS+=	--configure-vars="INCLUDE_DIR=${OPENSSLINC} LIB_DIR=${OPENSSLLIB}"
+
 post-patch:
 	${REINPLACE_CMD} -e '1,5d' ${WRKSRC}/src/ssl.c
 
-.include <bsd.port.options.mk>
+.include <bsd.port.pre.mk>
 
-.if ${OSVERSION} < 1000015
-WITH_OPENSSL_PORT=	yes
-R_POSTCMD_INSTALL_OPTIONS+=	--configure-vars="INCLUDE_DIR=${OPENSSLINC} LIB_DIR=${OPENSSLLIB}"
-USES+=		ssl
+.if ${SSL_DEFAULT:Mlibressl*}
+IGNORE=	Detected LibreSSL (missing RSA_get0_key and others)
+.else
+. if ${OSVERSION} < 1000015 && ${SSL_DEFAULT:Mbase}
+IGNORE=	Need a more recent version of OpenSSL.
+. endif
 .endif
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>