* src/keymap.c (Fsingle_key_description): Use make_specified_string

instead of build_string to build string from push_key_description.
(Bug#5193)

src/ChangeLog

+2011-09-19  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* keymap.c (Fsingle_key_description): Use make_specified_string
+	instead of build_string to build string from push_key_description.
+	(Bug#5193)
+
 2011-09-10  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
 
 	* xdisp.c (expose_window): Save original value of phys_cursor_on_p

src/keymap.c

@@ -2529,10 +2529,11 @@ around function keys and event symbols.  */)
 
   if (INTEGERP (key))		/* Normal character */
     {
-      char tem[KEY_DESCRIPTION_SIZE];
+      char tem[KEY_DESCRIPTION_SIZE], *p;
 
-      *push_key_description (XUINT (key), tem, 1) = 0;
-      return build_string (tem);
+      p = push_key_description (XUINT (key), tem, 1);
+      *p = 0;
+      return make_specified_string (tem, -1, p - tem, 1);
     }
   else if (SYMBOLP (key))	/* Function key or event-symbol */
     {