python bindings: provide useful defaults for linking when compiling out-of-tree

This allows to compile the bindings from a properly installed VLC (includes and libs in standard locations), as for instance with the libvlc1-dev debian package.

bindings/python/setup.py

@@ -71,7 +71,7 @@ def get_cflags():
 def get_ldflags():
     vlcconfig=get_vlcconfig()
     if vlcconfig is None:
-        return []
+        return [ '-lvlc', '-lvlc-control' ]
     else:
 	ldflags = []
 	if os.sys.platform == 'darwin':