LibreSSL and packaging tweaks

- don't force-disable the use of BN_GENCB_new() and friends, supported
  since LibreSSL 2.7.1
- fix WANTLIB, this is c++
- provide a correct WRKDIST, and use it
- install README.md, it has useful data

ok abieber@ (maintainer)

security/opmsg/Makefile

@@ -1,9 +1,10 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2018/04/03 13:22:31 abieber Exp $
+# $OpenBSD: Makefile,v 1.2 2018/11/20 13:01:08 jca Exp $
 
 COMMENT =	a replacement for gpg which can encrypt/sign/verify
 
 DISTNAME =	opmsg-1.78s
 EXTRACT_SUFX =	.tgz
+REVISION =	0
 
 FIX_EXTRACT_PERMISSIONS = Yes
 
@@ -16,22 +17,23 @@ MAINTAINER =	Aaron Bieber <abieber@openbsd.org>
 # GPLv3+
 PERMIT_PACKAGE_CDROM =	Yes
 
-WANTLIB += c crypto m
+WANTLIB += ${COMPILER_LIBCXX} c crypto m
 
 MASTER_SITES =		http://stealth.openwall.net/opmsg/
 
 COMPILER =		base-clang ports-clang ports-gcc
 
-MAKE_FLAGS =		DEFS+="-DHAVE_BN_GENCB_NEW=0"
-
-WRKSRC =		${WRKDIR}/opmsg/src
+WRKDIST =		${WRKDIR}/opmsg
+WRKSRC =		${WRKDIST}/src
 
 NO_TEST =		Yes
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/opmsg ${PREFIX}/bin/
+	${INSTALL_DATA_DIR} ${PREFIX}/share/doc/opmsg
+	${INSTALL_DATA} ${WRKDIST}/README.md ${PREFIX}/share/doc/opmsg/
 	${INSTALL_DATA_DIR} ${PREFIX}/share/examples/opmsg
-	${INSTALL_DATA} ${WRKSRC}/../sample.config \
+	${INSTALL_DATA} ${WRKDIST}/sample.config \
 		${PREFIX}/share/examples/opmsg/sample.config
 
 .include <bsd.port.mk>

security/opmsg/pkg/PLIST

@@ -1,4 +1,6 @@
-@comment $OpenBSD: PLIST,v 1.1.1.1 2018/04/03 13:22:31 abieber Exp $
+@comment $OpenBSD: PLIST,v 1.2 2018/11/20 13:01:08 jca Exp $
 @bin bin/opmsg
+share/doc/opmsg/
+share/doc/opmsg/README.md
 share/examples/opmsg/
 share/examples/opmsg/sample.config