3154 Nonconforming tolower and toupper with UTF-8 locales

*** 209,218 ****
--- 209,219 ----
          _FileRuneLocale rl;
          ctype_node_t    *ctn, *last_ct, *last_lo, *last_up;
          _FileRuneEntry  *ct = NULL;
          _FileRuneEntry  *lo = NULL;
          _FileRuneEntry  *up = NULL;
+         wchar_t         wc;
  
          (void) memset(&rl, 0, sizeof (rl));
          last_ct = NULL;
          last_lo = NULL;
          last_up = NULL;
*** 221,235 ****
                  return;
  
          (void) memcpy(rl.magic, _FILE_RUNE_MAGIC_1, 8);
          (void) strncpy(rl.encoding, get_wide_encoding(), sizeof (rl.encoding));
  
!         for (ctn = avl_first(&ctypes); ctn; ctn = AVL_NEXT(&ctypes, ctn)) {
  
!                 wchar_t wc = ctn->wc;
                  int conflict = 0;
  
                  /*
                   * POSIX requires certain portable characters have
                   * certain types.  Add them if they are missing.
                   */
                  if ((wc >= 1) && (wc <= 127)) {
--- 222,244 ----
                  return;
  
          (void) memcpy(rl.magic, _FILE_RUNE_MAGIC_1, 8);
          (void) strncpy(rl.encoding, get_wide_encoding(), sizeof (rl.encoding));
  
!         /*
!          * Preinit the identity map.
!          */
!         for (wc = 0; (unsigned)wc < _CACHED_RUNES; wc++) {
!                 rl.maplower[wc] = wc;
!                 rl.mapupper[wc] = wc;
!         }
  
!         for (ctn = avl_first(&ctypes); ctn; ctn = AVL_NEXT(&ctypes, ctn)) {
                  int conflict = 0;
  
+                 wc = ctn->wc;
+ 
                  /*
                   * POSIX requires certain portable characters have
                   * certain types.  Add them if they are missing.
                   */
                  if ((wc >= 1) && (wc <= 127)) {
*** 303,314 ****
                   * optimization.  Note that if we have not defined the
                   * upper/lower case, then we identity map it.
                   */
                  if ((unsigned)wc < _CACHED_RUNES) {
                          rl.runetype[wc] = ctn->ctype;
!                         rl.maplower[wc] = ctn->tolower ? ctn->tolower : wc;
!                         rl.mapupper[wc] = ctn->toupper ? ctn->toupper : wc;
                          continue;
                  }
  
                  if ((last_ct != NULL) && (last_ct->ctype == ctn->ctype)) {
                          ct[rl.runetype_ext_nranges-1].max = wc;
--- 312,325 ----
                   * optimization.  Note that if we have not defined the
                   * upper/lower case, then we identity map it.
                   */
                  if ((unsigned)wc < _CACHED_RUNES) {
                          rl.runetype[wc] = ctn->ctype;
!                         if (ctn->tolower)
!                                 rl.maplower[wc] = ctn->tolower;
!                         if (ctn->toupper)
!                                 rl.mapupper[wc] = ctn->toupper;
                          continue;
                  }
  
                  if ((last_ct != NULL) && (last_ct->ctype == ctn->ctype)) {
                          ct[rl.runetype_ext_nranges-1].max = wc;