--- rxvt-unicode/src/rxvtperl.xs	2006/07/06 23:48:11	1.102
+++ rxvt-unicode/src/rxvtperl.xs	2006/08/21 15:11:46	1.105
@@ -270,6 +270,9 @@
 overlay::overlay (rxvt_term *THIS, int x_, int y_, int w_, int h_, rend_t rstyle, int border)
 : THIS(THIS), x(x_), y(y_), w(w_), h(h_), border(border == 2), overlay_av (0)
 {
+  if (w < 0) w = 0;
+  if (h < 0) h = 0;
+
   if (border == 2)
     {
       w += 2;
@@ -1121,7 +1124,14 @@
         wchar_t *wstr = sv2wcs (str);
 
 	rxvt_push_locale (THIS->locale);
-        RETVAL = wcswidth (wstr, wcslen (wstr));
+        RETVAL = 0;
+        for (wchar_t *wc = wstr; *wc; wc++)
+          {
+            int w = WCWIDTH (*wc);
+
+            if (w)
+              RETVAL += min (w, 1);
+          }
         rxvt_pop_locale ();
 
         free (wstr);