[Freeciv] Problem with Isometric view and Cygwin

[<steves@xxxxxx>]

First of all hallo to everyone, I'm new here.

I downloaded freeciv 1.11.6 beta (same probelm with cvs 02 july) and tried to 
compile it under cygwin with Xfree86 4.10.

I compiled it with Xaw, everything ok, and it runs perfectly.

I decided to download the gtk libraries, installed and compiled again.
Compilation is OK. The civserver starts correctly, but when i start civclient 
it gives this error:

$ civclinet
/convert: No such file or directory
gdk_imlib ERROR: Cannot load image: /usr/local/share/freeciv/hires/terrain1.xpm
All fallbacks failed.
O: Failed reading XPM file /usr/local/share/freeciv/hires/terrain1.xpm

if I start it with civclient -tiles engles (or some other tileset) it gives the 
same error (with a different path and xmp file of course).

I tried to compile with "--enable-client=xaw" and worked again without 
isometric view!

Anyone can help me?
Thanks in advace,
Stefano