Consolidate wctomb/mbtowc calls for POSIX-1.2008

- Remove charset parameter from low level __foo_wctomb/__foo_mbtowc calls.
- Instead, create array of function for ISO and Windows codepages to point
  to function which does not require to evaluate the charset string on
  each call.  Create matching helper functions.  I.e., __iso_wctomb,
  __iso_mbtowc, __cp_wctomb and __cp_mbtowc are functions returning the
  right function pointer now.
- Create __WCTOMB/__MBTOWC macros utilizing per-reent locale and replace
  calls to __wctomb/__mbtowc with calls to __WCTOMB/__MBTOWC.
- Drop global __wctomb/__mbtowc vars.
- Utilize aforementioned changes in Cygwin to get rid of charset in other,
  calling functions and simplify the code.
- In Cygwin restrict global cygheap locale info to the job performed
  by internal_setlocale.  Use UTF-8 instead of ASCII on the fly in
  internal conversion functions.
- In Cygwin dll_entry, make sure to initialize a TLS area with a NULL
  _REENT->_locale pointer.  Add comment to explain why.

Signed-off by: Corinna Vinschen <corinna@vinschen.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/newlib/libc/stdlib/mbtowc.c b/newlib/libc/stdlib/mbtowc.c
index 3c7f84b9e..7b8be771c 100644
--- a/newlib/libc/stdlib/mbtowc.c
+++ b/newlib/libc/stdlib/mbtowc.c
@@ -70,7 +70,7 @@ _DEFUN (mbtowc, (pwc, s, n),
   _REENT_CHECK_MISC(reent);
   ps = &(_REENT_MBTOWC_STATE(reent));
   
-  retval = __mbtowc (reent, pwc, s, n, __locale_charset (), ps);
+  retval = __MBTOWC (reent, pwc, s, n, ps);
   
   if (retval < 0)
     {