net-p2p/libtorrent-rasterbar: fix build with LibreSSL

Add upstream-provided patch to fix build with LibreSSL. Default (OpenSSL)
setup isn't affected, so no PORTREVISION bump.
Remove pkg-message, that have no use.

Submitted by:	Corey <merlincorey@hushmail.me> (by private email)

net-p2p/libtorrent-rasterbar/Makefile

@@ -35,8 +35,6 @@ CONFIGURE_ARGS=	--disable-static \
 SHLIB_VER=	7
 PLIST_SUB+=	SHLIB_VER="${SHLIB_VER}"
 
-SUB_FILES=	pkg-message
-
 PORTDOCS=	*
 
 DOCSRCDIR1=	${WRKSRC}

net-p2p/libtorrent-rasterbar/files/patch-libressl

@@ -0,0 +1,38 @@
+--- src/torrent.cpp	(revision 10629)
++++ src/torrent.cpp	(revision 10630)
+@@ -82,6 +82,7 @@
+ #ifdef TORRENT_USE_OPENSSL
+ #include "libtorrent/ssl_stream.hpp"
+ #include <boost/asio/ssl/context.hpp>
++#include <openssl/rand.h>
+ #if BOOST_VERSION >= 104700
+ #include <boost/asio/ssl/verify_context.hpp>
+ #endif // BOOST_VERSION
+Index: src/peer_connection.cpp
+===================================================================
+--- src/peer_connection.cpp	(revision 10629)
++++ src/peer_connection.cpp	(revision 10630)
+@@ -65,6 +65,10 @@
+ #include <set>
+ #endif
+ 
++#ifdef TORRENT_USE_OPENSSL
++#include <openssl/rand.h>
++#endif
++
+ //#define TORRENT_CORRUPT_DATA
+ 
+ using boost::shared_ptr;
+Index: src/session_impl.cpp
+===================================================================
+--- src/session_impl.cpp	(revision 10629)
++++ src/session_impl.cpp	(revision 10630)
+@@ -149,6 +149,7 @@
+ #ifdef TORRENT_USE_OPENSSL
+ 
+ #include <openssl/crypto.h>
++#include <openssl/rand.h>
+ 
+ namespace
+ {
+

net-p2p/libtorrent-rasterbar/files/pkg-message.in

@@ -1,9 +0,0 @@
-===============================================================================
-
-libtorrent-rasterbar has been installed.
-
-When you have problems to build Source please reinstall
-
-devel/boost-libs
-
-===============================================================================