[Freeciv-Dev] (PR#4261) client pf core

["Mike Kaufman" <kaufman@xxxxxxxxxxxxxxxxxxxxxx>]

while executing a goto in the xaw client, I got this:

#0  pf_destroy_path (path=0x0) at path_finding.c:671
#1  0x08055993 in remove_last_part () at goto.c:260
#2  0x08055ca5 in exit_goto_state () at goto.c:363
#3  0x080548b1 in do_unit_goto (x=13, y=14) at control.c:1311
#4  0x08054653 in do_map_click (xtile=13, ytile=14) at control.c:1235
#5  0x08059349 in action_button_pressed (canvas_x=0, canvas_y=0)
    at mapctrl_common.c:86
#6  0x0807de37 in mapctrl_btn_mapcanvas (event=0xbffffad0) at mapctrl.c:254
#7  0x4012cb0a in HandleActions () from /usr/X11R6/lib/libXt.so.6
#8  0x4012d04c in HandleSimpleState () from /usr/X11R6/lib/libXt.so.6
#9  0x4012d653 in _XtTranslateEvent () from /usr/X11R6/lib/libXt.so.6
#10 0x40105854 in XtDispatchEventToWidget () from /usr/X11R6/lib/libXt.so.6
#11 0x40106398 in _XtDefaultDispatcher () from /usr/X11R6/lib/libXt.so.6
#12 0x4010654f in XtDispatchEvent () from /usr/X11R6/lib/libXt.so.6
#13 0x40106aa4 in XtAppMainLoop () from /usr/X11R6/lib/libXt.so.6
#14 0x080787e8 in ui_main (argc=1, argv=0x4) at gui_main.c:464
#15 0x0804e120 in main (argc=1, argv=0xbffffca4) at civclient.c:238
#16 0x40259fa4 in __libc_start_main (main=0x804df00 <main>, argc=2, 
    ubp_av=0xbffffca4, init=0x804aa40 <_init>, fini=0x40015640
<_rtld_local>, 
    rtld_fini=0x8331478, stack_end=0x1) at
../sysdeps/generic/libc-start.c:144

-mike