diff -Naur readline-5.0.orig/display.c readline-5.0/display.c
--- readline-5.0.orig/display.c	2004-05-28 04:57:51.000000000 +0200
+++ readline-5.0/display.c	2004-10-31 21:28:46.000000000 +0100
@@ -920,6 +920,7 @@
 	     start of the line and the cursor position. */
 	  nleft = c_pos - pos;
 
+#if 0
 	  /* Since _rl_backspace() doesn't know about invisible characters in the
 	     prompt, and there's no good way to tell it, we compensate for
 	     those characters here and call _rl_backspace() directly. */
@@ -931,6 +932,7 @@
 	      else
 		_rl_last_c_pos = nleft;
 	    }
+#endif
 
 	  if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
 	    _rl_move_cursor_relative (nleft, &invisible_line[pos]);