Index: server/autoattack.c
===================================================================
RCS file: /home/freeciv/CVS/freeciv/server/autoattack.c,v
retrieving revision 1.36
diff -u -r1.36 autoattack.c
--- server/autoattack.c	2002/02/27 11:12:48	1.36
+++ server/autoattack.c	2002/09/01 00:18:19
@@ -93,6 +93,9 @@
 
     freelog(LOG_DEBUG,  "found enemy unit/stack at %d,%d", x, y);
     enemy = get_defender(punit, x, y);
+    if (!enemy) {
+      continue;
+    }
     freelog(LOG_DEBUG,  "defender is %s", unit_name(enemy->type));
 
     if (!is_city_option_set(pcity, unit_type(enemy)->move_type - 1 +