Changes to libretroshare to make the system compile on Mac OSX 10.3

* minor changes to networking headers.
* addition of several virtual destructors (remove warnings)
* switched Makefiles to new system.
* added macosx specific configuration file.
* removed KadC compilation checks.



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@324 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/tcponudp/tcpstream.h

@@ -74,6 +74,7 @@ class TcpStream: public UdpPeer
 	/* Top-Level exposed */
 
 	TcpStream(UdpSorter *lyr);
+virtual ~TcpStream() { return; }
 
 	/* user interface */
 int     status(std::ostream &out);