Index: head/security/libp11/Makefile
===================================================================
--- head/security/libp11/Makefile	(revision 422255)
+++ head/security/libp11/Makefile	(revision 422256)
@@ -1,45 +1,50 @@
 # Created by: Alex Dupre <ale@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	libp11
 PORTVERSION=	0.4.0
 DISTVERSIONPREFIX=	${PORTNAME}-
 CATEGORIES=	security devel
 
 MAINTAINER=	ale@FreeBSD.org
 COMMENT=	Small layer on top of PKCS\#11 API
 
 LICENSE=	LGPL21
 
 LIB_DEPENDS=	libltdl.so:devel/libltdl
 
 OPTIONS_DEFINE=	DOCS EXAMPLES
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	OpenSC
 
-USE_OPENSSL=	yes
 GNU_CONFIGURE=	yes
-USES=		autoreconf libtool pkgconfig
+USES=		autoreconf libtool pkgconfig ssl
 USE_LDCONFIG=	yes
 
 MAKE_JOBS_UNSAFE=	yes
 
 CONFIGURE_ENV=	LTLIB_CFLAGS="-I${LOCALBASE}/include" \
 		LTLIB_LIBS="-L${LOCALBASE}/lib -lltdl" \
 		OPENSSL_CFLAGS="-I${OPENSSLINC}" \
 		OPENSSL_LIBS="-L${OPENSSLLIB} -lssl -lcrypto"
 
 CONFIGURE_ARGS=	--with-enginesdir=${PREFIX}/lib/engines
 
 INSTALL_TARGET=	install-strip
 
 PORTDOCS=	*
 
+.include <bsd.port.pre.mk>
+
+.if ${SSL_DEFAULT:Mlibressl*}
+IGNORE=	Detected LibreSSL (numerous OPENSSL_VERSION_NUMBER preprocessor conditions)
+.endif
+
 post-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA}	${WRKSRC}/examples/README ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA}	${WRKSRC}/examples/Makefile ${STAGEDIR}${EXAMPLESDIR}
 	${INSTALL_DATA}	${WRKSRC}/examples/*.c ${STAGEDIR}${EXAMPLESDIR}
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>