[Freeciv] More Xaw client segfault problems.

[sunqist <yorick@xxxxxxx>]

I tried recompiling with Xaw3d, but like the gtk client, it wouldn't
even run.   The Xaw client reproducible segfault when you click on the
city to open the city popup window.  Interestingly enough, the city
popup button that appears when units are built etc. is greyed out.
Here's the output of a gdb backtrace of the segfault:

Program received signal SIGSEGV, Segmentation fault.
0x2001b9ac in LayoutChild ()
(gdb) backtrace
#0  0x2001b9ac in LayoutChild ()
#1  0x2001bab0 in LayoutChild ()
#2  0x2001b718 in Layout ()
#3  0x2001c378 in ChangeManaged ()
#4  0x20186680 in ManageChildren ()
#5  0x20186920 in XtManageChildren ()
#6  0x20186a8c in XtManageChild ()
#7  0x201af658 in XtVaCreateManagedWidget ()
#8  0x427e64 in create_city_dialog (pcity=0x4, make_modal=0) at
citydlg.c:961
#9  0x4266a0 in popup_city_dialog (pcity=0x10113800, make_modal=0) at
citydlg.c:437
#10 0x41389c in do_map_click (xtile=56, ytile=19) at control.c:980
#11 0x448eac in mapctrl_btn_mapcanvas (event=0x10120000) at
mapctrl.c:275
#12 0x45f804 in xaw_btn_select_mapcanvas (w=0x10120000,
event=0x10235c00, argv=0x10120000, argc=0x10000000) at actions.c:56
#13 0x201ab7f0 in HandleActions ()
#14 0x201abed0 in HandleSimpleState ()
#15 0x201ac694 in _XtTranslateEvent ()
#16 0x201794bc in XtDispatchEventToWidget ()
#17 0x2017a244 in _XtDefaultDispatcher ()
#18 0x2017a4ec in XtDispatchEvent ()
#19 0x2017aa94 in XtAppMailLoop ()
#20 0x4400f0 in ui_main (argc=1, argv=0x4) at gui_main.c:468
#21 0x40d8f4 in main (argc=1, argc=0x7fffe804) at civclient.c:168
(gdb)

Any thoughts?

Thanks,
-Jed Sullivan