Update.

	* Versions.def: Add GLIBC_2.2 for libc.

	* iconv/gconv.h: Make header suitable for inclusion in public header
	by protecting all names with __.
	* iconv/gconv.c: Adapt for symbol name changes.
	* iconv/gconv.h: Likewise.
	* iconv/gconv_builtin.c: Likewise.
	* iconv/gconv_close.c: Likewise.
	* iconv/gconv_db.c: Likewise.
	* iconv/gconv_dl.c: Likewise.
	* iconv/gconv_int.h: Likewise.
	* iconv/gconv_open.c: Likewise.
	* iconv/gconv_simple.c: Likewise.
	* iconv/iconv.c: Likewise.
	* iconv/iconv_close.c: Likewise.
	* iconv/iconv_open.c: Likewise.
	* iconv/loop.c: Likewise.
	* iconv/skeleton.c: Likewise.
	* iconvdata/8bit-gap.c: Likewise.
	* iconvdata/8bit-generic.c: Likewise.
	* iconvdata/ansi_x3.110.c: Likewise.
	* iconvdata/big5.c: Likewise.
	* iconvdata/cns11643.h: Likewise.
	* iconvdata/cns11643l1.h: Likewise.
	* iconvdata/euc-cn.c: Likewise.
	* iconvdata/euc-jp.c: Likewise.
	* iconvdata/euc-kr.c: Likewise.
	* iconvdata/euc-tw.c: Likewise.
	* iconvdata/gb2312.h: Likewise.
	* iconvdata/iso-2022-jp.c: Likewise.
	* iconvdata/iso-2022-kr.c: Likewise.
	* iconvdata/iso646.c: Likewise.
	* iconvdata/iso8859-1.c: Likewise.
	* iconvdata/iso_6937-2.c: Likewise.
	* iconvdata/iso_6937.c: Likewise.
	* iconvdata/jis0201.h: Likewise.
	* iconvdata/jis0208.h: Likewise.
	* iconvdata/jis0212.h: Likewise.
	* iconvdata/johab.c: Likewise.
	* iconvdata/ksc5601.h: Likewise.
	* iconvdata/sjis.c: Likewise.
	* iconvdata/t.61.c: Likewise.
	* iconvdata/uhc.c: Likewise.
	* stdlib/mblen.c: Likewise.
	* stdlib/mbtowc.c: Likewise.
	* stdlib/wctomb.c: Likewise.
	* wcsmbs/btowc.c: Likewise.
	* wcsmbs/mbrtowc.c: Likewise.
	* wcsmbs/mbsnrtowcs.c: Likewise.
	* wcsmbs/mbsrtowcs.c: Likewise.
	* wcsmbs/wchar.h: Likewise.
	* wcsmbs/wcrtomb.c: Likewise.
	* wcsmbs/wcsmbsload.c: Likewise.
	* wcsmbs/wcsmbsload.h: Likewise.
	* wcsmbs/wcsnrtombs.c: Likewise.
	* wcsmbs/wcsrtombs.c: Likewise.
	* wcsmbs/wctob.c: Likewise.

	* include/limits.h (MB_LEN_MAX): Increase to 16.

	* sysdeps/generic/_G_config.h: Define _G_fpos_t as struct.  Define
	_G_iconv_t.
	* sysdeps/unix/sysv/linux/_G_config.h: Likewise.
	* include/wchar.h: Change mbstate_t to __mbstate_t.

	* libio/Makefile (routines): Add wfiledoalloc, oldiofgetpos,
	oldiofgetpos64, oldiofsetpos, oldiofsetpos64, fputwc, fputwc_u,
	getwc, getwc_u, getwchar, getwchar_u, iofgetws, iofgetws_u,
	iofputws, iofputws_u, iogetwline, iowpadn, ioungetwc, putwc, putwc_u,
	putchar, putchar_u, swprintf, vwprintf, wprintf, wscanf, fwscanf,
	vwscanf, vswprintf, iovswscanf, swscanf, wgenops, wstrops, wfileops,
	and iofwide.
	(tests): Add tst_swprintf, tst_wprintf, tst_swscanf, and tst_wscanf.
	* libio/Versions: Add _IO_fgetpos, _IO_fgetpos64, _IO_fsetpos,
	_IO_fsetpos64, fgetpos, fgetpos64, fgetwc, fgetwc_unlocked, fgetws,
	fgetws_unlocked, fputwc, fputwc_unlocked, fputws, fputws_unlocked,
	fsetpos, fsetpos64, fwide, fwprintf, fwscanf, getwc, getwc_unlocked,
	getwchar, getwchar_unlocked, putwc, putwc_unlocked, putwchar,
	putwchar_unlocked, swprintf, swscanf, ungetwc, vfwprintf, vswprintf,
	vwprintf, vfwscanf, vswscanf, vwscanf, wprintf, and wscanf to
	GLIBC_2.2 for libc.
	* libio/libio.h: Define codecvt struct.  Define _IO_wide_data.
	Extend _IO_file contain pointer to codecvt, widedata and mode.
	(_IO_getwc_unlocked): New macro.
	(_IO_putwc_unlocked): New macro.
	(_IO_fwide): New macro.
	* libio/libioP.h: Add new prototypes and adjust existing declarations.
	* libio/fileops.c (_IO_new_file_close_it): Reset normal or widedata
	buffers based on mode.
	(new_do_write): Set _IO_write_end to _IO_buf_end if stream is wide
	oriented.
	(_IO_new_file_overflow): Don't depend only on _IO_CURRENTLY_PUTTING
	flag to be enough to signal unallocated buffer.  For wide oriented
	stream don't make it linebuffered.  Don't use _IO_do_flush, use
	_IO_new_do_write directly.
	(_IO_new_file_seekoff): Change return value type to _IO_off64_t.
	(_IO_file_seek): Likewise.
	* libio/genops.c (_IO_least_marker): Make global.
	(__underflow): Orient stream if not already done.
	(__uflow): Likewise.
	(_IO_default_seekpos): Change to type _IO_off64_t.
	(_IO_default_seekoff): Likewise.
	(_IO_default_seek): Likewise.
	(_IO_no_init): New function.  Similar to _IO_init but allows to orient
	in initialization.
	* libio/iolibio.h: Add prototype for _IO_vswprintf.  Change _IO_pos_BAD
	to use _IO_off64_t.
	* libio/ftello.c: Use _IO_off_t.  For now abort when use with wide
	char stream.
	* libio/ftello64.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofopncook.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* libio/oldfileops.c: Likewise.
	* libio/iofgetpos.c: Store state of conversion if necessary.
	* libio/iofgetpos64.c: Likewise.
	* libio/iofsetpos.c: Restore conversion state if necessary.
	* libio/iofsetpos64.c: Likewise.
	* libio/iofdopen.c: Initialize so that stream can be wide oriented.
	* libio/iofopen.c: Likewise.
	* libio/iofopen64.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/iovdprintf.c: Likewise.
	* libio/iovsprintf.c: Likewise.
	* libio/iovsscanf.c: Likewise.
	* libio/memstream.c: Likewise.
	* libio/obprintf.c: Likewise.
	* libio/iofputs.c: Orient stream if not already happened.
	* libio/iofputs_u.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iofwrite_u.c: Likewise.
	* libio/ioputs.c: Likewise.
	* libio/iosetbuffer.c: Handle not yet oriented stream.
	* libio/iosetvbuf.c: Likewise.
	* libio/oldstdfiles.c: Adjust FILEBUF_LITERAL call.
	* libio/stdfiles.c: Likewise.
	* libio/strops.c (_IO_str_overflow): Correctly free buffer after
	failed allocation.
	(_IO_str_seekoff): Use _IO_off64_t.
	* libio/vasprintf.c: Pre-orient stream.
	* libio/vsnprintf.c: Likewise.
	* libio/fputwc.c: New file.
	* libio/fputwc_u.c: New file.
	* libio/fwprintf.c: New file.
	* libio/fwscanf.c: New file.
	* libio/getwc.c: New file.
	* libio/getwc_u.c: New file.
	* libio/getwchar.c: New file.
	* libio/getwchar_u.c: New file.
	* libio/iofgetws.c: New file.
	* libio/iofgetws_u.c: New file.
	* libio/iofputws.c: New file.
	* libio/iofputws_u.c: New file.
	* libio/iofwide.c: New file.
	* libio/iogetwline.c: New file.
	* libio/ioungetwc.c: New file.
	* libio/iovswscanf.c: New file.
	* libio/iowpadn.c: New file.
	* libio/oldiofgetpos.c: New file.
	* libio/oldiofgetpos64.c: New file.
	* libio/oldiofsetpos.c: New file.
	* libio/oldiofsetpos64.c: New file.
	* libio/putwc.c: New file.
	* libio/putwc_u.c: New file.
	* libio/putwchar.c: New file.
	* libio/putwchar_u.c: New file.
	* libio/swprintf.c: New file.
	* libio/swscanf.c: New file.
	* libio/tst_swprintf.c: New file.
	* libio/tst_swscanf.c: New file.
	* libio/tst_wprintf.c: New file.
	* libio/tst_wscanf.c: New file.
	* libio/tst_wscanf.input: New file.
	* libio/vswprintf.c: New file.
	* libio/vwprintf.c: New file.
	* libio/vwscanf.c: New file.
	* libio/wfiledoalloc.c: New file.
	* libio/wfileops.c: New file.
	* libio/wgenops.c: New file.
	* libio/wprintf.c: New file.
	* libio/wscanf.c: New file.
	* libio/wstrops.c: New file.
	* stdio-common/Makefile (routines): Add _itowa, itowa-digits,
	vfwprintf, and vfwscanf.
	* stdio-common/_itoa.c (base_table): Rename to _IO_base_table and
	make global.
	* stdio-common/_itowa.c: New file.
	* stdio-common/_itowa.h: New file.
	* stdio-common/itoa-digits.c: Minimal optimization.
	* stdio-common/itowa-digits.c: New file.
	* stdio-common/printf-parse.h: Allow use in wide character context.
	* stdio-common/printf-prs.c: Define ISASCII and MBRLEN.
	* stdio-common/printf.h (printf_info): Add wide bit.
	* stdio-common/printf_fp.c: Determine from wide bit whether stream
	is wide oriented or not.
	* stdio-common/printf_size.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.
	* stdlib/strfmon.c: Call __printf_fp with wide bit cleared.
	* stdio-common/vfprintf.c: Rewrite to allow use in wide character
	context.
	* stdio-common/vfscand.c: Likewise.
	* stdio-common/vfwprintf.c: New file.
	* stdio-common/vfwscanf.c: New file.

	* time/Makefile (routines): Add wcsftime.
	(tests): Add tst_wcsftime.
	* time/Versions: Add wcsftime to GLIBC_2.2 for libc.
	* time/strftime.c: Make usable as wcsftime.
	* time/wcsftime.c: New file.
	* time/tst_wcsftime.c: New file.

	* wcsmbs/Makefile (routines): Add wmempcpy and wcschrnul.
	* wcsmbs/Versions: Add wmempcpy and wcschrnul to GLIBC_2.2 for libc.
	* wcsmbs/wcschrnul.c: New file.
	* wcsmbs/wmemcpy.c: New file.
	* wcsmbs/wmemcpy.c: Rename to __wmemcpy and make wmemcpy weak alias.
	* wcsmbs/wmemmove.c: Likewise for wmemmove.

	* manual/stdio.texi: Document is_char and wide element if printf_info.

	* manual/time.texi: Document wcsftime.

	* include/wchar.h: Add prototypes for __wmemcpy, __wmempcpy,
	__wmemmove, __wcschrnul, and __vfwscanf.

	* locale/langinfo.h: Add new LC_TIME entries for wchar_t data.
	* locale/C-time.c: Adapt for above change.
	* locale/categories.def: Likewise.
	* locale/localeinfo.h: Likewise.
	* localedata/Makefile: Don't run tests for now.

17 files changed, 557 insertions, 258 deletions

diff --git a/wcsmbs/Makefile b/wcsmbs/Makefile
index fa5dbef0a6..f1dc651877 100644
--- a/wcsmbs/Makefile
+++ b/wcsmbs/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+# Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -26,10 +26,10 @@ distribute := wcwidth.h wcsmbsload.h
 
 routines := wcscat wcschr wcscmp wcscpy wcscspn wcsdup wcslen wcsncat \
 	    wcsncmp wcsncpy wcspbrk wcsrchr wcsspn wcstok wcsstr wmemchr \
-	    wmemcmp wmemcpy wmemmove wmemset wcpcpy wcpncpy \
+	    wmemcmp wmemcpy wmemmove wmemset wcpcpy wcpncpy wmempcpy \
 	    btowc wctob mbsinit \
 	    mbrlen mbrtowc wcrtomb mbsrtowcs wcsrtombs \
-	    mbsnrtowcs wcsnrtombs wcsnlen \
+	    mbsnrtowcs wcsnrtombs wcsnlen wcschrnul \
 	    wcstol wcstoul wcstoll wcstoull wcstod wcstold wcstof \
 	    wcstol_l wcstoul_l wcstoll_l wcstoull_l \
 	    wcstod_l wcstold_l wcstof_l \
diff --git a/wcsmbs/Versions b/wcsmbs/Versions
index 54195bad73..d0ba267756 100644
--- a/wcsmbs/Versions
+++ b/wcsmbs/Versions
@@ -20,4 +20,8 @@ libc {
     wcscasecmp; wcsncasecmp; wcsnlen; wcstoll;
     wcstoimax; wcstoumax; wcstoull; wcswcs; wmemrtombs; wmemrtowcs;
   }
+  GLIBC_2.2 {
+    # w*
+    wcschrnul; wmempcpy;
+  }
 }
diff --git a/wcsmbs/btowc.c b/wcsmbs/btowc.c
index 1c6332ee8c..bec0d48841 100644
--- a/wcsmbs/btowc.c
+++ b/wcsmbs/btowc.c
@@ -30,7 +30,7 @@ __btowc (c)
      int c;
 {
   wchar_t result;
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   unsigned char inbuf[1];
   const unsigned char *inptr = inbuf;
   size_t dummy;
@@ -42,12 +42,12 @@ __btowc (c)
     return WEOF;
 
   /* Tell where we want the result.  */
-  data.outbuf = (unsigned char *) &result;
-  data.outbufend = data.outbuf + sizeof (wchar_t);
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = &data.__state;
+  data.__outbuf = (unsigned char *) &result;
+  data.__outbufend = data.__outbuf + sizeof (wchar_t);
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = &data.__state;
 
   /* Make sure we start in the initial state.  */
   memset (&data.__state, '\0', sizeof (mbstate_t));
@@ -58,11 +58,11 @@ __btowc (c)
   /* Create the input string.  */
   inbuf[0] = c;
 
-  status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc, &data,
-					     &inptr, inptr + 1, &dummy, 0);
+  status = (*__wcsmbs_gconv_fcts.towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
+					       &inptr, inptr + 1, &dummy, 0);
   /* The conversion failed.  */
-  if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
-      && status != GCONV_EMPTY_INPUT)
+  if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+      && status != __GCONV_EMPTY_INPUT)
     result = WEOF;
 
   return result;
diff --git a/wcsmbs/mbrtowc.c b/wcsmbs/mbrtowc.c
index 78ff2a22dd..a68b0f2f79 100644
--- a/wcsmbs/mbrtowc.c
+++ b/wcsmbs/mbrtowc.c
@@ -35,7 +35,7 @@ size_t
 __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
 {
   wchar_t buf[1];
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   int status;
   size_t result;
   size_t dummy;
@@ -43,18 +43,18 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
   char *outbuf = (char *) (pwc ?: buf);
 
   /* Tell where we want the result.  */
-  data.outbuf = outbuf;
-  data.outbufend = outbuf + sizeof (wchar_t);
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__outbuf = outbuf;
+  data.__outbufend = outbuf + sizeof (wchar_t);
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   /* A first special case is if S is NULL.  This means put PS in the
      initial state.  */
   if (s == NULL)
     {
-      data.outbuf = (char *) buf;
+      data.__outbuf = (char *) buf;
       s = "";
       n = 1;
     }
@@ -64,27 +64,27 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
 
   /* Do a normal conversion.  */
   inbuf = (const unsigned char *) s;
-  status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
-					     &data, &inbuf, inbuf + n,
-					     &dummy, 0);
+  status = (*__wcsmbs_gconv_fcts.towc->__fct) (__wcsmbs_gconv_fcts.towc,
+					       &data, &inbuf, inbuf + n,
+					       &dummy, 0);
 
   /* There must not be any problems with the conversion but illegal input
      characters.  The output buffer must be large enough, otherwise the
      definition of MB_CUR_MAX is not correct.  All the other possible
      errors also must not happen.  */
-  assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT
-	  || status == GCONV_FULL_OUTPUT);
+  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
 
-  if (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-      || status == GCONV_FULL_OUTPUT)
+  if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+      || status == __GCONV_FULL_OUTPUT)
     {
-      if (data.outbuf != (unsigned char *) outbuf
+      if (data.__outbuf != (unsigned char *) outbuf
 	  && *(wchar_t *) outbuf == L'\0')
 	{
 	  /* The converted character is the NUL character.  */
-	  assert (__mbsinit (data.statep));
+	  assert (__mbsinit (data.__statep));
 	  result = 0;
 	}
       else
@@ -92,7 +92,7 @@ __mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
     }
   else
     {
-      result = status == GCONV_INCOMPLETE_INPUT ? (size_t) -2 : (size_t) -1;
+      result = status == __GCONV_INCOMPLETE_INPUT ? (size_t) -2 : (size_t) -1;
       __set_errno (EILSEQ);
     }
 
diff --git a/wcsmbs/mbsnrtowcs.c b/wcsmbs/mbsnrtowcs.c
index cb2d41c4c8..b58a467854 100644
--- a/wcsmbs/mbsnrtowcs.c
+++ b/wcsmbs/mbsnrtowcs.c
@@ -45,15 +45,16 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
      mbstate_t *ps;
 {
   const unsigned char *srcend;
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   size_t result = 0;
   int status;
+  struct __gconv_step *towc;
 
   /* Tell where we want the result.  */
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   if (nmc == 0)
     return 0;
@@ -62,25 +63,27 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
   /* Make sure we use the correct function.  */
   update_conversion_ptrs ();
 
+  /* Get the structure with the function pointers.  */
+  towc = __wcsmbs_gconv_fcts.towc;
+
   /* We have to handle DST == NULL special.  */
   if (dst == NULL)
     {
       wchar_t buf[64];		/* Just an arbitrary size.  */
       const unsigned char *inbuf = *src;
 
-      data.outbufend = (char *) buf + sizeof (buf);
+      data.__outbufend = (char *) buf + sizeof (buf);
       do
 	{
-	  data.outbuf = (char *) buf;
+	  data.__outbuf = (char *) buf;
 
-	  status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
-						     &data, &inbuf, srcend,
-						     &result, 0);
+	  status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data, &inbuf,
+				   srcend, &result, 0);
 	}
-      while (status == GCONV_FULL_OUTPUT);
+      while (status == __GCONV_FULL_OUTPUT);
 
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
-	  && ((wchar_t *) data.outbuf)[-1] == L'\0')
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
+	  && ((wchar_t *) data.__outbuf)[-1] == L'\0')
 	/* Don't count the NUL character in.  */
 	--result;
     }
@@ -89,21 +92,20 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
       /* This code is based on the safe assumption that all internal
 	 multi-byte encodings use the NUL byte only to mark the end
 	 of the string.  */
-      data.outbuf = (unsigned char *) dst;
-      data.outbufend = data.outbuf + len * sizeof (wchar_t);
+      data.__outbuf = (unsigned char *) dst;
+      data.__outbufend = data.__outbuf + len * sizeof (wchar_t);
 
-      status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
-						 &data,
-						 (const unsigned char **) src,
-						 srcend, &result, 0);
+      status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
+			       (const unsigned char **) src, srcend,
+			       &result, 0);
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
 	  && ((wchar_t *) dst)[result - 1] == L'\0')
 	{
 	  assert (result > 0);
-	  assert (__mbsinit (data.statep));
+	  assert (__mbsinit (data.__statep));
 	  *src = NULL;
 	  --result;
 	}
@@ -111,12 +113,13 @@ __mbsnrtowcs (dst, src, nmc, len, ps)
 
   /* There must not be any problems with the conversion but illegal input
      characters.  */
-  assert (status == GCONV_OK || status != GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT);
+  assert (status == __GCONV_OK || status != __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
 
-  if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
-      && status != GCONV_EMPTY_INPUT)
+  if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+      && status != __GCONV_EMPTY_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);
diff --git a/wcsmbs/mbsrtowcs.c b/wcsmbs/mbsrtowcs.c
index 84b7a3883b..f69247ff85 100644
--- a/wcsmbs/mbsrtowcs.c
+++ b/wcsmbs/mbsrtowcs.c
@@ -41,19 +41,23 @@ __mbsrtowcs (dst, src, len, ps)
      size_t len;
      mbstate_t *ps;
 {
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   size_t result = 0;
   int status;
+  struct __gconv_step *towc;
 
   /* Tell where we want the result.  */
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   /* Make sure we use the correct function.  */
   update_conversion_ptrs ();
 
+  /* Get the structure with the function pointers.  */
+  towc = __wcsmbs_gconv_fcts.towc;
+
   /* We have to handle DST == NULL special.  */
   if (dst == NULL)
     {
@@ -61,21 +65,20 @@ __mbsrtowcs (dst, src, len, ps)
       const unsigned char *inbuf = (const unsigned char *) *src;
       const unsigned char *srcend = inbuf + strlen (inbuf) + 1;
 
-      data.outbufend = (char *) buf + sizeof (buf);
+      data.__outbufend = (char *) buf + sizeof (buf);
       do
 	{
-	  data.outbuf = (char *) buf;
+	  data.__outbuf = (char *) buf;
 
-	  status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
-						     &data, &inbuf, srcend,
-						     &result, 0);
+	  status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data, &inbuf,
+				   srcend, &result, 0);
 	}
-      while (status == GCONV_FULL_OUTPUT);
+      while (status == __GCONV_FULL_OUTPUT);
 
-      if (status == GCONV_OK || status == GCONV_EMPTY_INPUT)
+      if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
 	{
 	  /* There better should be a NUL wide char at the end.  */
-	  assert (((wchar_t *) data.outbuf)[-1] == L'\0');
+	  assert (((wchar_t *) data.__outbuf)[-1] == L'\0');
 	  /* Don't count the NUL character in.  */
 	  --result;
 	}
@@ -91,21 +94,20 @@ __mbsrtowcs (dst, src, len, ps)
 					+ __strnlen (*src, len * MB_CUR_MAX)
 					+ 1);
 
-      data.outbuf = (unsigned char *) dst;
-      data.outbufend = data.outbuf + len * sizeof (wchar_t);
+      data.__outbuf = (unsigned char *) dst;
+      data.__outbufend = data.__outbuf + len * sizeof (wchar_t);
 
-      status = (*__wcsmbs_gconv_fcts.towc->fct) (__wcsmbs_gconv_fcts.towc,
-						 &data,
-						 (const unsigned char **) src,
-						 srcend, &result, 0);
+      status = (*towc->__fct) (__wcsmbs_gconv_fcts.towc, &data,
+			       (const unsigned char **) src, srcend,
+			       &result, 0);
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
 	  && ((wchar_t *) dst)[result - 1] == L'\0')
 	{
 	  assert (result > 0);
-	  assert (__mbsinit (data.statep));
+	  assert (__mbsinit (data.__statep));
 	  *src = NULL;
 	  --result;
 	}
@@ -113,12 +115,13 @@ __mbsrtowcs (dst, src, len, ps)
 
   /* There must not be any problems with the conversion but illegal input
      characters.  */
-  assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT);
+  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
 
-  if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
-      && status != GCONV_EMPTY_INPUT)
+  if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+      && status != __GCONV_EMPTY_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);
diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h
index fddb3d626c..8be3f10c2d 100644
--- a/wcsmbs/wchar.h
+++ b/wcsmbs/wchar.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -22,19 +22,24 @@
  */
 
 #ifndef _WCHAR_H
-#define _WCHAR_H 1
 
-#include <features.h>
+#ifndef __need_mbstate_t
+# define _WCHAR_H 1
+# include <features.h>
+#endif
 
+#ifdef _WCHAR_H
 /* Get FILE definition.  */
-#define __need_FILE
-#include <stdio.h>
+# define __need_FILE
+# include <stdio.h>
+# include <stdarg.h>
 
 /* Get size_t, wchar_t, wint_t and NULL from <stddef.h>.  */
-#define __need_size_t
-#define __need_wchar_t
+# define __need_size_t
+# define __need_wchar_t
+# define __need_NULL
+#endif
 #define __need_wint_t
-#define __need_NULL
 #include <stddef.h>
 
 /* We try to get wint_t from <stddef.h>, but not all GCC versions define it
@@ -49,12 +54,24 @@ typedef unsigned int wint_t;
 #endif
 
 
+#ifndef __mbstate_t_defined
+# define __mbstate_t_defined	1
 /* Conversion state information.  */
 typedef struct
 {
   int count;		/* Number of bytes needed for the current character. */
   wint_t value;		/* Value so far.  */
-} mbstate_t;
+} __mbstate_t;
+#endif
+#undef __need_mbstate_t
+
+
+/* The rest of the file is only used if used if __need_mbstate_t is not
+   defined.  */
+#ifdef _WCHAR_H
+
+/* Public type.  */
+typedef __mbstate_t mbstate_t;
 
 #ifndef WCHAR_MIN
 /* These constants might also be defined in <inttypes.h>.  */
@@ -150,6 +167,12 @@ extern wchar_t *wcschr __P ((__const wchar_t *__wcs, wchar_t __wc));
 /* Find the last occurrence of WC in WCS.  */
 extern wchar_t *wcsrchr __P ((__const wchar_t *__wcs, wchar_t __wc));
 
+#ifdef __USE_GNU
+/* This funciton is similar to `wcschr'.  But it returns a pointer to
+   the closing NUL wide character in case C is not found in S.  */
+extern wchar_t *wcschrnul __P ((__const wchar_t *__s, wchar_t __wc));
+#endif
+
 /* Return the length of the initial segmet of WCS which
    consists entirely of wide characters not in REJECT.  */
 extern size_t wcscspn __P ((__const wchar_t *__wcs,
@@ -204,6 +227,13 @@ extern wchar_t *wmemmove __P ((wchar_t *__s1, __const wchar_t *__s2,
 /* Set N wide characters of S to C.  */
 extern wchar_t *wmemset __P ((wchar_t *__s, wchar_t __c, size_t __n));
 
+#ifdef __USE_GNU
+/* Copy N wide characters of SRC to DEST and return pointer to following
+   wide character.  */
+extern wchar_t *wmempcpy __P ((wchar_t *__restrict __s1,
+			       __const wchar_t *__restrict __s2, size_t __n));
+#endif
+
 
 /* Determine whether C constitutes a valid (one-byte) multibyte
    character.  */
@@ -488,6 +518,137 @@ extern wchar_t *wcpncpy __P ((wchar_t *__dest, __const wchar_t *__src,
 #endif	/* use GNU */
 
 
+/* Wide character I/O functions.  */
+
+/* Select orientation for stream.  */
+extern int fwide __P ((FILE *__fp, int __mode));
+
+
+/* Write formatted output to STREAM.  */
+extern int fwprintf __P ((FILE *__restrict __stream,
+			  __const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
+/* Write formatted output to stdout.  */
+extern int wprintf __P ((__const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
+/* Write formatted output of at most N characters to S.  */
+extern int swprintf __P ((wchar_t *__restrict __s, size_t __n,
+			  __const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
+
+/* Write formatted output to S from argument list ARG.  */
+extern int vfwprintf __P ((FILE *__restrict __s,
+			   __const wchar_t *__restrict __format,
+			   va_list __arg))
+     /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
+/* Write formatted output to stdout from argument list ARG.  */
+extern int vwprintf __P ((__const wchar_t *__restrict __format,
+			  va_list __arg))
+     /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
+/* Write formatted output of at most N character to S from argument
+   list ARG.  */
+extern int vswprintf __P ((wchar_t *__restrict __s, size_t __n,
+			   __const wchar_t *__restrict __format,
+			   va_list __arg))
+     /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
+
+
+/* Read formatted input from STREAM.  */
+extern int fwscanf __P ((FILE *__restrict __stream,
+			 __const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+/* Read formatted input from stdin.  */
+extern int wscanf __P ((__const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
+/* Read formatted input from S.  */
+extern int swscanf __P ((__const wchar_t *__restrict __s,
+			 __const wchar_t *__restrict __format, ...))
+     /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+
+/* Read formatted input from S into argument list ARG.  */
+extern int vfwscanf __P ((FILE *__restrict __s,
+			  __const wchar_t *__restrict __format, va_list __arg))
+     /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+/* Read formatted input from stdin into argument list ARG.  */
+extern int vwscanf __P ((__const wchar_t *__restrict __format, va_list __arg))
+     /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
+/* Read formatted input from S into argument list ARG.  */
+extern int vswscanf __P ((__const wchar_t *__restrict __s,
+			  __const wchar_t *__restrict __format, va_list __arg))
+     /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+
+
+/* Read a character from STREAM.  */
+extern wint_t fgetwc __P ((FILE *__stream));
+extern wint_t getwc __P ((FILE *__stream));
+
+/* Read a character from stdin.  */
+extern wint_t getwchar __P ((void));
+
+#ifdef __USE_GNU
+/* These are defined to be equivalent to the `char' functions defined
+   in POSIX.1:1996.  */
+extern wint_t getwc_unlocked __P ((FILE *__stream));
+extern wint_t getwchar_unlocked __P ((void));
+
+/* This is the wide character version of a GNU extension.  */
+extern wint_t fgetwc_unlocked __P ((FILE *__stream));
+#endif /* Use POSIX or MISC.  */
+
+
+/* Write a character to STREAM.  */
+extern wint_t fputwc __P ((wint_t __wc, FILE *__stream));
+extern wint_t putwc __P ((wint_t __wc, FILE *__stream));
+
+/* Write a character to stdout.  */
+extern wint_t putwchar __P ((wint_t __wc));
+
+#ifdef __USE_GNU
+/* Faster version when locking is not necessary.  */
+extern wint_t fputwc_unlocked __P ((wint_t __wc, FILE *__stream));
+
+/* These are defined to be equivalent to the `char' functions defined
+   in POSIX.1:1996.  */
+extern wint_t putwc_unlocked __P ((wint_t __wc, FILE *__stream));
+extern wint_t putwchar_unlocked __P ((wint_t __wc));
+#endif
+
+
+/* Get a newline-terminated wide character string of finite length
+   from STREAM.  */
+extern wchar_t *fgetws __P ((wchar_t *__restrict __ws, int __n,
+			     FILE *__restrict __stream));
+
+#ifdef __USE_GNU
+/* This function does the same as `fgetws' but does not lock the stream.  */
+extern wchar_t *fgetws_unlocked __P ((wchar_t *__restrict __ws, int __n,
+				      FILE *__restrict __stream));
+#endif
+
+
+/* Write a string to STREAM.  */
+extern int fputws __P ((__const wchar_t *__restrict __ws,
+			FILE *__restrict __stream));
+
+#ifdef __USE_GNU
+/* This function does the same as `fputws' but does not lock the stream.  */
+extern int fputws_unlocked __P ((__const wchar_t *__restrict __ws,
+				 FILE *__restrict __stream));
+#endif
+
+
+/* Push a character back onto the input buffer of STREAM.  */
+extern wint_t ungetwc __P ((wint_t __wc, FILE *__stream));
+
+
+/* Format TP into S according to FORMAT.
+   Write no more than MAXSIZE wide characters and return the number
+   of wide characters written, or 0 if it would exceed MAXSIZE.  */
+extern size_t wcsftime __P ((wchar_t *__restrict __s, size_t __maxsize,
+			     __const wchar_t *__restrict __format,
+			     __const struct tm *__restrict __tp));
+
+
 /* The X/Open standard demands that most of the functions defined in
    the <wctype.h> header must also appear here.  This is probably
    because some X/Open members wrote their implementation before the
@@ -501,4 +662,6 @@ extern wchar_t *wcpncpy __P ((wchar_t *__dest, __const wchar_t *__src,
 
 __END_DECLS
 
+#endif	/* _WCHAR_H defined */
+
 #endif /* wchar.h  */
diff --git a/wcsmbs/wcrtomb.c b/wcsmbs/wcrtomb.c
index b546c7a9d3..91daf4d94c 100644
--- a/wcsmbs/wcrtomb.c
+++ b/wcsmbs/wcrtomb.c
@@ -37,24 +37,24 @@ size_t
 __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
 {
   char buf[MB_CUR_MAX];
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   int status;
   size_t result;
   size_t dummy;
 
   /* Tell where we want the result.  */
-  data.outbuf = s;
-  data.outbufend = s + MB_CUR_MAX;
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__outbuf = s;
+  data.__outbufend = s + MB_CUR_MAX;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   /* A first special case is if S is NULL.  This means put PS in the
      initial state.  */
   if (s == NULL)
     {
-      data.outbuf = buf;
+      data.__outbuf = buf;
       wc = L'\0';
     }
 
@@ -66,35 +66,36 @@ __wcrtomb (char *s, wchar_t wc, mbstate_t *ps)
      by a NUL byte.  */
   if (wc == L'\0')
     {
-      status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						 &data, NULL, NULL, &dummy, 1);
+      status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb,
+						   &data, NULL, NULL,
+						   &dummy, 1);
 
-      if (status == GCONV_OK || status == GCONV_EMPTY_INPUT)
-	*data.outbuf++ = '\0';
+      if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
+	*data.__outbuf++ = '\0';
     }
   else
     {
       /* Do a normal conversion.  */
       const unsigned char *inbuf = (const unsigned char *) &wc;
 
-      status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						 &data, &inbuf,
-						 inbuf + sizeof (wchar_t),
-						 &dummy, 0);
+      status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb,
+						   &data, &inbuf,
+						   inbuf + sizeof (wchar_t),
+						   &dummy, 0);
     }
 
   /* There must not be any problems with the conversion but illegal input
      characters.  The output buffer must be large enough, otherwise the
      definition of MB_CUR_MAX is not correct.  All the other possible
      errors also must not happen.  */
-  assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT
-	  || status == GCONV_FULL_OUTPUT);
-
-  if (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-      || status == GCONV_FULL_OUTPUT)
-    result = data.outbuf - (unsigned char *) s;
+  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
+
+  if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+      || status == __GCONV_FULL_OUTPUT)
+    result = data.__outbuf - (unsigned char *) s;
   else
     {
       result = (size_t) -1;
diff --git a/wcsmbs/wcschrnul.c b/wcsmbs/wcschrnul.c
new file mode 100644
index 0000000000..2ea9b2ccc2
--- /dev/null
+++ b/wcsmbs/wcschrnul.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 1995, 1996, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <wchar.h>
+
+
+/* Find the first occurrence of WC in WCS.  */
+wchar_t *
+__wcschrnul (wcs, wc)
+     register const wchar_t *wcs;
+     register const wchar_t wc;
+{
+  while (*wcs != L'\0')
+    if (*wcs == wc)
+      break;
+    else
+      ++wcs;
+
+  return wcs;
+}
+weak_alias (__wcschrnul, wcschrnul)
diff --git a/wcsmbs/wcsmbsload.c b/wcsmbs/wcsmbsload.c
index b16aa6c500..b02acad68d 100644
--- a/wcsmbs/wcsmbsload.c
+++ b/wcsmbs/wcsmbsload.c
@@ -36,64 +36,76 @@ const struct locale_data *__wcsmbs_last_locale = &_nl_C_LC_CTYPE;
 
 
 /* These are the descriptions for the default conversion functions.  */
-static struct gconv_step to_wc =
+static struct __gconv_step to_wc =
 {
-  shlib_handle: NULL,
-  modname: NULL,
-  counter: INT_MAX,
-  from_name: "ANSI_X3.4-1968//",
-  to_name: "INTERNAL",
-  fct: __gconv_transform_ascii_internal,
-  init_fct: NULL,
-  end_fct: NULL,
-  min_needed_from: 1,
-  max_needed_from: 1,
-  min_needed_to: 4,
-  max_needed_to: 4,
-  stateful: 0,
-  data: NULL
+  .__shlib_handle = NULL,
+  .__modname = NULL,
+  .__counter = INT_MAX,
+  .__from_name = "ANSI_X3.4-1968//",
+  .__to_name = "INTERNAL",
+  .__fct = __gconv_transform_ascii_internal,
+  .__init_fct = NULL,
+  .__end_fct = NULL,
+  .__min_needed_from = 1,
+  .__max_needed_from = 1,
+  .__min_needed_to = 4,
+  .__max_needed_to = 4,
+  .__stateful = 0,
+  .__data = NULL
 };
 
-static struct gconv_step to_mb =
+static struct __gconv_step to_mb =
 {
-  shlib_handle: NULL,
-  modname: NULL,
-  counter: INT_MAX,
-  from_name: "INTERNAL",
-  to_name: "ANSI_X3.4-1968//",
-  fct: __gconv_transform_internal_ascii,
-  init_fct: NULL,
-  end_fct: NULL,
-  min_needed_from: 4,
-  max_needed_from: 4,
-  min_needed_to: 1,
-  max_needed_to: 1,
-  stateful: 0,
-  data: NULL
+  .__shlib_handle = NULL,
+  .__modname = NULL,
+  .__counter = INT_MAX,
+  .__from_name = "INTERNAL",
+  .__to_name = "ANSI_X3.4-1968//",
+  .__fct = __gconv_transform_internal_ascii,
+  .__init_fct = NULL,
+  .__end_fct = NULL,
+  .__min_needed_from = 4,
+  .__max_needed_from = 4,
+  .__min_needed_to = 1,
+  .__max_needed_to = 1,
+  .__stateful = 0,
+  .__data = NULL
 };
 
 
 /* For the default locale we only have to handle ANSI_X3.4-1968.  */
 struct gconv_fcts __wcsmbs_gconv_fcts =
 {
-  towc: &to_wc,
-  tomb: &to_mb
+  .towc = &to_wc,
+  .tomb = &to_mb
 };
 
 
-static inline struct gconv_step *
+static inline struct __gconv_step *
 getfct (const char *to, const char *from)
 {
   size_t nsteps;
-  struct gconv_step *result;
+  struct __gconv_step *result;
+  size_t nstateful;
+  size_t cnt;
 
-  if (__gconv_find_transform (to, from, &result, &nsteps) != GCONV_OK)
+  if (__gconv_find_transform (to, from, &result, &nsteps) != __GCONV_OK)
     /* Loading the conversion step is not possible.  */
     return NULL;
 
-  /* We must only have one step in this conversion.  */
-  if (nsteps != 1)
-    return NULL;
+  /* Count the number of stateful conversions.  Since we will only
+     have one 'mbstate_t' object available we can only deal with one
+     stateful conversion.  */
+  nstateful = 0;
+  for (cnt = 0; cnt < nsteps; ++cnt)
+    if (result[cnt].__stateful)
+      ++nstateful;
+  if (nstateful > 1)
+    {
+      /* We cannot handle this case.  */
+      __gconv_close_transform (result, nsteps);
+      result = NULL;
+    }
 
   return result;
 }
@@ -148,14 +160,15 @@ getfct (const char *to, const char *from)
   })
 
 
+/* We must modify global data.  */
+__libc_lock_define_initialized (static, lock)
+
+
 /* Load conversion functions for the currently selected locale.  */
 void
 internal_function
 __wcsmbs_load_conv (const struct locale_data *new_category)
 {
-  /* We must modify global data.  */
-  __libc_lock_define_initialized (static, lock)
-
   /* Acquire the lock.  */
   __libc_lock_lock (lock);
 
@@ -174,6 +187,12 @@ __wcsmbs_load_conv (const struct locale_data *new_category)
 	  /* We must find the real functions.  */
 	  const char *charset_name;
 	  const char *complete_name;
+	  struct __gconv_step *new_towc;
+	  struct __gconv_step *new_tomb;
+
+	  /* Free the old conversions.  */
+	  __gconv_close_transform (__wcsmbs_gconv_fcts.tomb, 1);
+	  __gconv_close_transform (__wcsmbs_gconv_fcts.towc, 1);
 
 	  /* Get name of charset of the locale.  We first examine
 	     whether we have a character set mentioned in the locale
@@ -188,15 +207,23 @@ __wcsmbs_load_conv (const struct locale_data *new_category)
              complete lookup.  */
 	  complete_name = norm_add_slashes (charset_name);
 
-	  __wcsmbs_gconv_fcts.tomb = getfct (complete_name, "INTERNAL");
-	  __wcsmbs_gconv_fcts.towc = getfct ("INTERNAL", complete_name);
+	  new_towc = getfct ("INTERNAL", complete_name);
+	  if (new_towc != NULL)
+	    new_tomb = getfct (complete_name, "INTERNAL");
 
 	  /* If any of the conversion functions is not available we don't
 	     use any since this would mean we cannot convert back and
 	     forth.*/
-	  if (__wcsmbs_gconv_fcts.towc == NULL
-	      || __wcsmbs_gconv_fcts.tomb == NULL)
-	    goto failed;
+	  if (new_towc == NULL || new_tomb == NULL)
+	    {
+	      if (new_towc != NULL)
+		__gconv_close_transform (new_towc, 1);
+
+	      goto failed;
+	    }
+
+	  __wcsmbs_gconv_fcts.tomb = new_tomb;
+	  __wcsmbs_gconv_fcts.towc = new_towc;
 	}
 
       /* Set last-used variable for current locale.  */
@@ -205,3 +232,24 @@ __wcsmbs_load_conv (const struct locale_data *new_category)
 
   __libc_lock_unlock (lock);
 }
+
+
+/* Clone the current conversion function set.  */
+void
+internal_function
+__wcsmbs_clone_conv (struct gconv_fcts *copy)
+{
+  /* Make sure the data structures remain the same until we are finished.  */
+  __libc_lock_lock (lock);
+
+  /* Copy the data.  */
+  *copy = __wcsmbs_gconv_fcts;
+
+  /* Now increment the usage counters.  */
+  if (copy->towc->__shlib_handle != NULL)
+    ++copy->towc->__counter;
+  if (copy->tomb->__shlib_handle != NULL)
+    ++copy->tomb->__counter;
+
+  __libc_lock_unlock (lock);
+}
diff --git a/wcsmbs/wcsmbsload.h b/wcsmbs/wcsmbsload.h
index df0ba7b796..a3652d22ac 100644
--- a/wcsmbs/wcsmbsload.h
+++ b/wcsmbs/wcsmbsload.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -25,8 +25,8 @@
 /* Contains pointers to the used functions in the `gconv' modules.  */
 struct gconv_fcts
   {
-    struct gconv_step *towc;
-    struct gconv_step *tomb;
+    struct __gconv_step *towc;
+    struct __gconv_step *tomb;
   };
 
 /* Set of currently active conversion functions.  */
@@ -41,6 +41,10 @@ extern const struct locale_data *__wcsmbs_last_locale;
 extern void __wcsmbs_load_conv (const struct locale_data *new_category)
      internal_function;
 
+/* Clone the current `__wcsmbs_load_conv' value.  */
+extern void __wcsmbs_clone_conv (struct gconv_fcts *copy)
+     internal_function;
+
 
 /* Check whether the LC_CTYPE locale changed since the last call.
    Update the pointers appropriately.  */
diff --git a/wcsmbs/wcsnrtombs.c b/wcsmbs/wcsnrtombs.c
index f93d404eb1..fb86992aea 100644
--- a/wcsmbs/wcsnrtombs.c
+++ b/wcsmbs/wcsnrtombs.c
@@ -1,6 +1,6 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -43,16 +43,17 @@ __wcsnrtombs (dst, src, nwc, len, ps)
      size_t len;
      mbstate_t *ps;
 {
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   const wchar_t *srcend;
   int status;
   size_t result;
+  struct __gconv_step *tomb;
 
   /* Tell where we want the result.  */
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   if (nwc == 0)
     return 0;
@@ -61,6 +62,9 @@ __wcsnrtombs (dst, src, nwc, len, ps)
   /* Make sure we use the correct function.  */
   update_conversion_ptrs ();
 
+  /* Get the structure with the function pointers.  */
+  tomb = __wcsmbs_gconv_fcts.tomb;
+
   /* We have to handle DST == NULL special.  */
   if (dst == NULL)
     {
@@ -69,25 +73,23 @@ __wcsnrtombs (dst, src, nwc, len, ps)
       size_t dummy;
 
       result = 0;
-      data.outbufend = buf + sizeof (buf);
+      data.__outbufend = buf + sizeof (buf);
 
       do
 	{
-	  data.outbuf = buf;
+	  data.__outbuf = buf;
 
-	  status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						     &data,
-						     (const unsigned char **) &inbuf,
-						     (const unsigned char *) srcend,
-						     &dummy, 0);
+	  status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
+				   (const unsigned char **) &inbuf,
+				   (const unsigned char *) srcend, &dummy, 0);
 
 	  /* Count the number of bytes.  */
-	  result += data.outbuf - buf;
+	  result += data.__outbuf - buf;
 	}
-      while (status == GCONV_FULL_OUTPUT);
+      while (status == __GCONV_FULL_OUTPUT);
 
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
-	  && data.outbuf[-1] == '\0')
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
+	  && data.__outbuf[-1] == '\0')
 	/* Don't count the NUL character in.  */
 	--result;
     }
@@ -98,25 +100,23 @@ __wcsnrtombs (dst, src, nwc, len, ps)
 	 of the string.  */
       size_t dummy;
 
-      data.outbuf = dst;
-      data.outbufend = dst + len;
+      data.__outbuf = dst;
+      data.__outbufend = dst + len;
 
-      status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						 &data,
-						 (const unsigned char **) src,
-						 (const unsigned char *) srcend,
-						 &dummy, 0);
+      status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
+			       (const unsigned char **) src,
+			       (const unsigned char *) srcend, &dummy, 0);
 
       /* Count the number of bytes.  */
-      result = data.outbuf - (unsigned char *) dst;
+      result = data.__outbuf - (unsigned char *) dst;
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT)
-	  && data.outbuf[-1] == '\0')
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
+	  && data.__outbuf[-1] == '\0')
 	{
-	  assert (data.outbuf != (unsigned char *) dst);
-	  assert (__mbsinit (data.statep));
+	  assert (data.__outbuf != (unsigned char *) dst);
+	  assert (__mbsinit (data.__statep));
 	  *src = NULL;
 	  --result;
 	}
@@ -124,12 +124,13 @@ __wcsnrtombs (dst, src, nwc, len, ps)
 
   /* There must not be any problems with the conversion but illegal input
      characters.  */
-  assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT);
+  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
 
-  if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
-      && status != GCONV_EMPTY_INPUT)
+  if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+      && status != __GCONV_EMPTY_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);
diff --git a/wcsmbs/wcsrtombs.c b/wcsmbs/wcsrtombs.c
index 02575992d6..5ab84814a0 100644
--- a/wcsmbs/wcsrtombs.c
+++ b/wcsmbs/wcsrtombs.c
@@ -1,6 +1,6 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -40,19 +40,23 @@ __wcsrtombs (dst, src, len, ps)
      size_t len;
      mbstate_t *ps;
 {
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   int status;
   size_t result;
+  struct __gconv_step *tomb;
 
   /* Tell where we want the result.  */
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = ps ?: &state;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = ps ?: &state;
 
   /* Make sure we use the correct function.  */
   update_conversion_ptrs ();
 
+  /* Get the structure with the function pointers.  */
+  tomb = __wcsmbs_gconv_fcts.tomb;
+
   /* We have to handle DST == NULL special.  */
   if (dst == NULL)
     {
@@ -62,27 +66,25 @@ __wcsrtombs (dst, src, len, ps)
       size_t dummy;
 
       result = 0;
-      data.outbufend = buf + sizeof (buf);
+      data.__outbufend = buf + sizeof (buf);
 
       do
 	{
-	  data.outbuf = buf;
+	  data.__outbuf = buf;
 
-	  status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						     &data,
-						     (const unsigned char **) &inbuf,
-						     (const unsigned char *) srcend,
-						     &dummy, 0);
+	  status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
+				   (const unsigned char **) &inbuf,
+				   (const unsigned char *) srcend, &dummy, 0);
 
 	  /* Count the number of bytes.  */
-	  result += data.outbuf - buf;
+	  result += data.__outbuf - buf;
 	}
-      while (status == GCONV_FULL_OUTPUT);
+      while (status == __GCONV_FULL_OUTPUT);
 
-      if (status == GCONV_OK || status == GCONV_EMPTY_INPUT)
+      if (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT)
 	{
 	  /* There better should be a NUL byte at the end.  */
-	  assert (data.outbuf[-1] == '\0');
+	  assert (data.__outbuf[-1] == '\0');
 	  /* Don't count the NUL character in.  */
 	  --result;
 	}
@@ -95,26 +97,24 @@ __wcsrtombs (dst, src, len, ps)
       const wchar_t *srcend = *src + __wcsnlen (*src, len * MB_CUR_MAX) + 1;
       size_t dummy;
 
-      data.outbuf = dst;
-      data.outbufend = dst + len;
+      data.__outbuf = dst;
+      data.__outbufend = dst + len;
 
-      status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb,
-						 &data,
-						 (const unsigned char **) src,
-						 (const unsigned char *) srcend,
-						 &dummy, 0);
+      status = (*tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
+			       (const unsigned char **) src,
+			       (const unsigned char *) srcend, &dummy, 0);
 
       /* Count the number of bytes.  */
-      result = data.outbuf - (unsigned char *) dst;
+      result = data.__outbuf - (unsigned char *) dst;
 
       /* We have to determine whether the last character converted
 	 is the NUL character.  */
-      if ((status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	   || status == GCONV_FULL_OUTPUT)
-	  && data.outbuf[-1] == '\0')
+      if ((status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	   || status == __GCONV_FULL_OUTPUT)
+	  && data.__outbuf[-1] == '\0')
 	{
-	  assert (data.outbuf != (unsigned char *) dst);
-	  assert (__mbsinit (data.statep));
+	  assert (data.__outbuf != (unsigned char *) dst);
+	  assert (__mbsinit (data.__statep));
 	  *src = NULL;
 	  --result;
 	}
@@ -122,12 +122,13 @@ __wcsrtombs (dst, src, len, ps)
 
   /* There must not be any problems with the conversion but illegal input
      characters.  */
-  assert (status == GCONV_OK || status == GCONV_EMPTY_INPUT
-	  || status == GCONV_ILLEGAL_INPUT
-	  || status == GCONV_INCOMPLETE_INPUT || status == GCONV_FULL_OUTPUT);
+  assert (status == __GCONV_OK || status == __GCONV_EMPTY_INPUT
+	  || status == __GCONV_ILLEGAL_INPUT
+	  || status == __GCONV_INCOMPLETE_INPUT
+	  || status == __GCONV_FULL_OUTPUT);
 
-  if (status != GCONV_OK && status != GCONV_FULL_OUTPUT
-      && status != GCONV_EMPTY_INPUT)
+  if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+      && status != __GCONV_EMPTY_INPUT)
     {
       result = (size_t) -1;
       __set_errno (EILSEQ);
diff --git a/wcsmbs/wctob.c b/wcsmbs/wctob.c
index 0fba46ad72..565cbead4c 100644
--- a/wcsmbs/wctob.c
+++ b/wcsmbs/wctob.c
@@ -29,19 +29,19 @@ wctob (c)
      wint_t c;
 {
   char buf[MB_LEN_MAX];
-  struct gconv_step_data data;
+  struct __gconv_step_data data;
   wchar_t inbuf[1];
   wchar_t *inptr = inbuf;
   size_t dummy;
   int status;
 
   /* Tell where we want the result.  */
-  data.outbuf = buf;
-  data.outbufend = buf + MB_LEN_MAX;
-  data.invocation_counter = 0;
-  data.internal_use = 1;
-  data.is_last = 1;
-  data.statep = &data.__state;
+  data.__outbuf = buf;
+  data.__outbufend = buf + MB_LEN_MAX;
+  data.__invocation_counter = 0;
+  data.__internal_use = 1;
+  data.__is_last = 1;
+  data.__statep = &data.__state;
 
   /* Make sure we start in the initial state.  */
   memset (&data.__state, '\0', sizeof (mbstate_t));
@@ -52,14 +52,14 @@ wctob (c)
   /* Create the input string.  */
   inbuf[0] = c;
 
-  status = (*__wcsmbs_gconv_fcts.tomb->fct) (__wcsmbs_gconv_fcts.tomb, &data,
-					     (const unsigned char **) &inptr,
-					     (const unsigned char *) &inbuf[1],
-					     &dummy, 0);
+  status = (*__wcsmbs_gconv_fcts.tomb->__fct) (__wcsmbs_gconv_fcts.tomb, &data,
+					       (const unsigned char **) &inptr,
+					       (const unsigned char *) &inbuf[1],
+					       &dummy, 0);
   /* The conversion failed or the output is too long.  */
-  if ((status != GCONV_OK && status != GCONV_FULL_OUTPUT
-       && status != GCONV_EMPTY_INPUT)
-      || data.outbuf != (unsigned char *) (buf + 1))
+  if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
+       && status != __GCONV_EMPTY_INPUT)
+      || data.__outbuf != (unsigned char *) (buf + 1))
     return EOF;
 
   return buf[0];
diff --git a/wcsmbs/wmemcpy.c b/wcsmbs/wmemcpy.c
index 6133a5a48d..8530a71457 100644
--- a/wcsmbs/wmemcpy.c
+++ b/wcsmbs/wmemcpy.c
@@ -1,6 +1,6 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, 1996.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
@@ -22,10 +22,11 @@
 
 
 wchar_t *
-wmemcpy (s1, s2, n)
+__wmemcpy (s1, s2, n)
      wchar_t *s1;
      const wchar_t *s2;
      size_t n;
 {
   return (wchar_t *) memcpy ((char *) s1, (char *) s2, n * sizeof (wchar_t));
 }
+weak_alias (__wmemcpy, wmemcpy)
diff --git a/wcsmbs/wmemmove.c b/wcsmbs/wmemmove.c
index fc4cead656..5d41601750 100644
--- a/wcsmbs/wmemmove.c
+++ b/wcsmbs/wmemmove.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>
 
@@ -22,10 +22,11 @@
 
 
 wchar_t *
-wmemmove (s1, s2, n)
+__wmemmove (s1, s2, n)
      wchar_t *s1;
      const wchar_t *s2;
      size_t n;
 {
   return (wchar_t *) memmove ((char *) s1, (char *) s2, n * sizeof (wchar_t));
 }
+weak_alias (__wmemmove, wmemmove)
diff --git a/wcsmbs/wmempcpy.c b/wcsmbs/wmempcpy.c
new file mode 100644
index 0000000000..46cb9585c9
--- /dev/null
+++ b/wcsmbs/wmempcpy.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <wchar.h>
+#include <string.h>
+
+
+wchar_t *
+__wmempcpy (s1, s2, n)
+     wchar_t *s1;
+     const wchar_t *s2;
+     size_t n;
+{
+  return (wchar_t *) __mempcpy ((char *) s1, (char *) s2,
+				n * sizeof (wchar_t));
+}
+weak_alias (__wmempcpy, wmempcpy)