[Freeciv-Dev] (PR#7387) Unified overview broke win32 client

["James Canete" <use_less@xxxxxxxxxxx>]

<URL: http://rt.freeciv.org/Ticket/Display.html?id=7387 >

PR#7301 broke the win32 native client.

I've been working on a fix, and so far the overview window works, but
it's not clickable.  Also the information below the overview is not
drawn properly, and the patch is extremely ugly, no cleanup whatsoever.

I created a new window for the overview, and placed its callback
function in gui_main.c.  That probably needs to be cleaned up, and also
made to respond to mouse clicks.  I basically just tweaked the code here
and there until it worked. :) I'm still working on it. 

I might have fundamentally misunderstood how the client was supposed to
be changed, and so I apologize in advance.  Here's the patch anyway. :)

-James Canete

unifyoverview-fixwin32.diff
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