mc 4.7.0pre3 support for .tlz archives

[Paul Marwick <paulm waitrose com>]

I've just built 4.7.0-pre3. Looks good so far. However, even though it 
will read .txz archive (which use the xz), it does not recognize .tlz 
(older lzma) archives. If it hit enter with the cursor over a .tlz file, 
I get this:

 Hmm,...
/home/tooth/build60/4pane/0.6.0/4Pane-0.6.0-i586-1vl60.tlz 
         doesn't look like a tar archive.

Can anyone tell me what I need to do to add support for the older lzma 
packages? xz reads them without problems, but I'm not sure what is 
needed for MC to support them.

paul.