Update.

2000-08-13  Ulrich Drepper  <drepper@redhat.com>
	    Benjamin Koznik  <bkoz@redhat.com>

	* libio/fileops.c: Merge with libstdc++-v3.
	* libio/genops.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofopen.c: Likewise.
	* libio/iofwide.c: Likewise.
	* libio/libio.h: Likewise.
	* libio/libioP.h: Likewise.
	* libio/stdfiles.c: Likewise.
	* libio/stdio.c: Likewise.
	* libio/wfileops.c: Likewise.
	* libio/wgenops.c: Likewise.

	* libio/Versions: Export functions needed by libstdc++-v3 in GLIBC_2.2.

12 files changed, 280 insertions, 50 deletions

diff --git a/libio/Versions b/libio/Versions
index 1fbc313cb9..0b57cce4f0 100644
--- a/libio/Versions
+++ b/libio/Versions
@@ -103,6 +103,16 @@ libc {
   GLIBC_2.2 {
     # functions used in libstdc++
     _IO_fgetpos; _IO_fgetpos64; _IO_fsetpos; _IO_fsetpos64;
+    _IO_wdo_write; _IO_wfile_jumps; _IO_wfile_overflow; _IO_wfile_seekoff;
+    _IO_wfile_setbuf; _IO_wfile_sync; _IO_wfile_underflow; _IO_wfile_xsputn;
+    _IO_adjust_wcolumn; _IO_free_wbackup_area; _IO_init_wmarker;
+    _IO_least_wmarker; _IO_seekwmark; _IO_sputbackwc; _IO_sungetwc;
+    _IO_switch_to_main_wget_area; _IO_switch_to_wbackup_area;
+    _IO_switch_to_wget_mode; _IO_unsave_wmarkers; _IO_wdefault_doallocate;
+    _IO_wdefault_finish; _IO_wdefault_pbackfail; _IO_wdefault_setbuf;
+    _IO_wdefault_uflow; _IO_wdefault_xsgetn; _IO_wdefault_xsputn;
+    _IO_wdoallocbuf; _IO_wmarker_delta; _IO_wsetb; __woverflow; __wuflow;
+    __wunderflow;
 
     # LinuxThreads uses this protected interface
     _IO_iter_begin; _IO_iter_end; _IO_iter_next; _IO_iter_file;
diff --git a/libio/fileops.c b/libio/fileops.c
index 462ac67c22..a830b5cd43 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -55,6 +55,20 @@ extern int errno;
 # define lseek(FD, Offset, Whence) __lseek (FD, Offset, Whence)
 # define read(FD, Buf, NBytes) __read (FD, Buf, NBytes)
 # define write(FD, Buf, NBytes) __write (FD, Buf, NBytes)
+#else
+# define _IO_new_do_write _IO_do_write
+# define _IO_new_file_attach _IO_file_attach
+# define _IO_new_file_close_it _IO_file_close_it
+# define _IO_new_file_finish _IO_file_finish
+# define _IO_new_file_fopen _IO_file_fopen
+# define _IO_new_file_init _IO_file_init
+# define _IO_new_file_setbuf _IO_file_setbuf
+# define _IO_new_file_sync _IO_file_sync
+# define _IO_new_file_overflow _IO_file_overflow
+# define _IO_new_file_seekoff _IO_file_seekoff
+# define _IO_new_file_underflow _IO_file_underflow
+# define _IO_new_file_write _IO_file_write
+# define _IO_new_file_xsputn _IO_file_xsputn
 #endif
 
 /* An fstream can be in at most one of put mode, get mode, or putback mode.
@@ -146,12 +160,14 @@ _IO_new_file_close_it (fp)
       _IO_setg (fp, NULL, NULL, NULL);
       _IO_setp (fp, NULL, NULL);
     }
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   else
     {
       _IO_wsetb (fp, NULL, NULL, 0);
       _IO_wsetg (fp, NULL, NULL, NULL);
       _IO_wsetp (fp, NULL, NULL);
     }
+#endif
 
   _IO_un_link ((struct _IO_FILE_plus *) fp);
   fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS;
@@ -768,7 +784,7 @@ _IO_file_stat (fp, st)
 #ifdef _G_FSTAT64
   return _G_FSTAT64 (fp->_fileno, (struct _G_stat64 *) st);
 #else
-  return fstat (fp->_fileno, (struct _G_stat64 *) st);
+  return fstat (fp->_fileno, (struct stat *) st);
 #endif
 }
 
@@ -1016,6 +1032,7 @@ struct _IO_jump_t _IO_file_jumps =
   JUMP_INIT(imbue, _IO_default_imbue)
 };
 
+#ifdef _LIBC
 versioned_symbol (libc, _IO_new_do_write, _IO_do_write, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_attach, _IO_file_attach, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_close_it, _IO_file_close_it, GLIBC_2_1);
@@ -1029,3 +1046,4 @@ versioned_symbol (libc, _IO_new_file_seekoff, _IO_file_seekoff, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_underflow, _IO_file_underflow, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_write, _IO_file_write, GLIBC_2_1);
 versioned_symbol (libc, _IO_new_file_xsputn, _IO_file_xsputn, GLIBC_2_1);
+#endif
diff --git a/libio/genops.c b/libio/genops.c
index 381c45fa5d..b1ae5afc50 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -285,8 +285,10 @@ int
 __underflow (fp)
      _IO_FILE *fp;
 {
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   if (fp->_vtable_offset == 0 && _IO_fwide (fp, -1) != -1)
     return EOF;
+#endif
 
   if (fp->_mode == 0)
     _IO_fwide (fp, -1);
@@ -315,8 +317,10 @@ int
 __uflow (fp)
      _IO_FILE *fp;
 {
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   if (fp->_vtable_offset == 0 && _IO_fwide (fp, -1) != -1)
     return EOF;
+#endif
 
   if (fp->_mode == 0)
     _IO_fwide (fp, -11);
@@ -580,6 +584,7 @@ _IO_no_init (fp, flags, orientation, wd, jmp)
   _IO_lock_init (*fp->_lock);
 #endif
   fp->_mode = orientation;
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   if (orientation >= 0)
     {
       fp->_wide_data = wd;
@@ -597,6 +602,7 @@ _IO_no_init (fp, flags, orientation, wd, jmp)
 
       fp->_wide_data->_wide_vtable = jmp;
     }
+#endif
 }
 
 int
@@ -749,9 +755,12 @@ _IO_flush_all ()
   struct _IO_FILE *fp;
   for (fp = (_IO_FILE *) _IO_list_all; fp; fp = fp->_chain)
     if (((fp->_mode < 0 && fp->_IO_write_ptr > fp->_IO_write_base)
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
 	 || (fp->_vtable_offset == 0
 	     && fp->_mode > 0 && (fp->_wide_data->_IO_write_ptr
-				  > fp->_wide_data->_IO_write_base)))
+				  > fp->_wide_data->_IO_write_base))
+#endif
+	 )
 	&& _IO_OVERFLOW (fp, EOF) == EOF)
       result = EOF;
   return result;
@@ -775,7 +784,9 @@ _IO_unbuffer_write ()
   for (fp = (_IO_FILE *) _IO_list_all; fp; fp = fp->_chain)
     if (! (fp->_flags & _IO_UNBUFFERED)
 	&& (! (fp->_flags & _IO_NO_WRITES)
-	    || (fp->_flags & _IO_IS_APPENDING)))
+	    || (fp->_flags & _IO_IS_APPENDING))
+	/* Iff stream is un-orientated, it wasn't used. */
+	&& fp->_mode != 0)
       _IO_SETBUF (fp, NULL, 0);
 }
 
@@ -1021,7 +1032,7 @@ _IO_default_write (fp, data, n)
   return 0;
 }
 
-size_t
+int
 _IO_default_showmanyc (fp)
      _IO_FILE *fp;
 {
diff --git a/libio/iofclose.c b/libio/iofclose.c
index 04da395841..43a3f5833f 100644
--- a/libio/iofclose.c
+++ b/libio/iofclose.c
@@ -30,6 +30,9 @@
 #if _LIBC
 # include "../iconv/gconv_int.h"
 # include <shlib-compat.h>
+#else
+# define SHLIB_COMPAT(a, b, c) 0
+# define _IO_new_fclose fclose
 #endif
 
 int
@@ -87,6 +90,8 @@ _IO_new_fclose (fp)
   return status;
 }
 
+#ifdef _LIBC
 versioned_symbol (libc, _IO_new_fclose, _IO_fclose, GLIBC_2_1);
 strong_alias (_IO_new_fclose, __new_fclose)
 versioned_symbol (libc, __new_fclose, fclose, GLIBC_2_1);
+#endif
diff --git a/libio/iofopen.c b/libio/iofopen.c
index e44423be6d..f34fd1e515 100644
--- a/libio/iofopen.c
+++ b/libio/iofopen.c
@@ -27,7 +27,11 @@
 #ifdef __STDC__
 #include <stdlib.h>
 #endif
-#include <shlib-compat.h>
+#ifdef _LIBC
+# include <shlib-compat.h>
+#else
+# define _IO_new_fopen fopen
+#endif
 
 _IO_FILE *
 _IO_new_fopen (filename, mode)
@@ -48,7 +52,11 @@ _IO_new_fopen (filename, mode)
 #ifdef _IO_MTSAFE_IO
   new_f->fp.file._lock = &new_f->lock;
 #endif
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   _IO_no_init (&new_f->fp.file, 0, 0, &new_f->wd, &_IO_wfile_jumps);
+#else
+  _IO_no_init (&new_f->fp.file, 1, 0, NULL, NULL);
+#endif
   _IO_JUMPS (&new_f->fp) = &_IO_file_jumps;
   _IO_file_init (&new_f->fp);
 #if  !_IO_UNIFIED_JUMPTABLES
@@ -61,6 +69,8 @@ _IO_new_fopen (filename, mode)
   return NULL;
 }
 
+#ifdef _LIBC
 strong_alias (_IO_new_fopen, __new_fopen)
 versioned_symbol (libc, _IO_new_fopen, _IO_fopen, GLIBC_2_1);
 versioned_symbol (libc, __new_fopen, fopen, GLIBC_2_1);
+#endif
diff --git a/libio/iofwide.c b/libio/iofwide.c
index 6c4b265915..231cc56c34 100644
--- a/libio/iofwide.c
+++ b/libio/iofwide.c
@@ -77,10 +77,12 @@ struct _IO_codecvt __libio_codecvt =
 };
 
 
+#ifdef _LIBC
 static struct __gconv_trans_data libio_translit =
 {
   .__trans_fct = __gconv_transliterate
 };
+#endif
 
 
 /* Return orientation of stream.  If mode is nonzero try to change
@@ -102,19 +104,20 @@ _IO_fwide (fp, mode)
   /* Set the orientation appropriately.  */
   if (mode > 0)
     {
+      struct _IO_codecvt *cc = fp->_codecvt = &fp->_wide_data->_codecvt;
+
       fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end;
       fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_base;
 
-      /* Clear the state.  We start all over again.  */
-      memset (&fp->_wide_data->_IO_state, '\0', sizeof (__mbstate_t));
-      memset (&fp->_wide_data->_IO_last_state, '\0', sizeof (__mbstate_t));
-
       /* Get the character conversion functions based on the currently
 	 selected locale for LC_CTYPE.  */
 #ifdef _LIBC
       {
 	struct gconv_fcts fcts;
-	struct _IO_codecvt *cc = fp->_codecvt = &fp->_wide_data->_codecvt;
+
+	/* Clear the state.  We start all over again.  */
+	memset (&fp->_wide_data->_IO_state, '\0', sizeof (__mbstate_t));
+	memset (&fp->_wide_data->_IO_last_state, '\0', sizeof (__mbstate_t));
 
 	__wcsmbs_clone_conv (&fcts);
 
@@ -140,11 +143,43 @@ _IO_fwide (fp, mode)
 	cc->__cd_out.__cd.__data[0].__flags = __GCONV_IS_LAST;
 	cc->__cd_out.__cd.__data[0].__statep = &fp->_wide_data->_IO_state;
 
-	/* XXX For now no transliteration.  */
+	/* And now the transliteration.  */
+#ifdef _LIBC
 	cc->__cd_out.__cd.__data[0].__trans = &libio_translit;
+#else
+	cc->__cd_out.__cd.__data[0].__trans = NULL;
+#endif
       }
 #else
-# error "somehow determine this from LC_CTYPE"
+# ifdef _GLIBCPP_USE_WCHAR_T
+      {
+	/* Determine internal and external character sets.
+
+	   XXX For now we make our life easy: we assume a fixed internal
+	   encoding (as most sane systems have; hi HP/UX!).  If somebody
+	   cares about systems which changing internal charsets they
+	   should come up with a solution for the determination of the
+	   currently used internal character set.  */
+	const char *internal_ccs = _G_INTERNAL_CCS;
+	const char *external_ccs = NULL;
+
+#  ifdef HAVE_NL_LANGINFO
+	external_ccs = nl_langinfo (CODESET);
+#  endif
+	if (external_ccs == NULL)
+	  external_ccs = "ISO-8859-1";
+
+	cc->__cd_in = iconv_open (internal_ccs, external_ccs);
+	if (cc->__cd_in != (iconv_t) -1)
+	  cc->__cd_out = iconv_open (external_ccs, internal_ccs);
+
+	if (cc->__cd_in == (iconv_t) -1 || cc->__cd_out == (iconv_t) -1)
+	  /* XXX */
+	  abort ();
+      }
+# else
+#  error "somehow determine this from LC_CTYPE"
+# endif
 #endif
 
       /* From now on use the wide character callback functions.  */
@@ -205,8 +240,26 @@ do_out (struct _IO_codecvt *codecvt, __mbstate_t *statep,
       break;
     }
 #else
+# ifdef _GLIBCPP_USE_WCHAR_T
+  size_t res;
+  const char *from_start_copy = (const char *) from_start;
+  size_t from_len = from_end - from_start;
+  char *to_start_copy = to_start;
+  size_t to_len = to_end - to_start;
+  res = iconv (codecvt->__cd_out, &from_start_copy, &from_len,
+	       &to_start_copy, &to_len);
+
+  if (res == 0 || from_len == 0)
+    result = __codecvt_ok;
+  else if (to_len < codecvt->__codecvt_do_max_length (codecvt))
+    result = __codecvt_partial;
+  else
+    result = __codecvt_error;
+
+# else
   /* Decide what to do.  */
   result = __codecvt_error;
+# endif
 #endif
 
   return result;
@@ -251,8 +304,23 @@ do_unshift (struct _IO_codecvt *codecvt, __mbstate_t *statep,
       break;
     }
 #else
+# ifdef _GLIBCPP_USE_WCHAR_T
+  size_t res;
+  char *to_start_copy = (char *) to_start;
+  size_t to_len = to_end - to_start;
+
+  res = iconv (codecvt->__cd_out, NULL, NULL, &to_start_copy, &to_len);
+
+  if (res == 0)
+    result = __codecvt_ok;
+  else if (to_len < codecvt->__codecvt_do_max_length (codecvt))
+    result = __codecvt_partial;
+  else
+    result = __codecvt_error;
+# else
   /* Decide what to do.  */
   result = __codecvt_error;
+# endif
 #endif
 
   return result;
@@ -300,8 +368,28 @@ do_in (struct _IO_codecvt *codecvt, __mbstate_t *statep,
       break;
     }
 #else
+# ifdef _GLIBCPP_USE_WCHAR_T
+  size_t res;
+  const char *from_start_copy = (const char *) from_start;
+  size_t from_len = from_end - from_start;
+  char *to_start_copy = (char *) from_start;
+  size_t to_len = to_end - to_start;
+
+  res = iconv (codecvt->__cd_in, &from_start_copy, &from_len,
+	       &to_start_copy, &to_len);
+
+  if (res == 0)
+    result = __codecvt_ok;
+  else if (to_len == 0)
+    result = __codecvt_partial;
+  else if (from_len < codecvt->__codecvt_do_max_length (codecvt))
+    result = __codecvt_partial;
+  else
+    result = __codecvt_error;
+# else
   /* Decide what to do.  */
   result = __codecvt_error;
+# endif
 #endif
 
   return result;
@@ -359,8 +447,21 @@ do_length (struct _IO_codecvt *codecvt, __mbstate_t *statep,
 
   result = cp - (const unsigned char *) from_start;
 #else
+# ifdef _GLIBCPP_USE_WCHAR_T
+  const char *from_start_copy = (const char *) from_start;
+  size_t from_len = from_end - from_start;
+  wchar_t to_buf[max];
+  size_t res;
+  char *to_start = (char *) to_buf;
+
+  res = iconv (codecvt->__cd_in, &from_start_copy, &from_len,
+	       &to_start, &max);
+
+  result = from_start_copy - (char *) from_start;
+# else
   /* Decide what to do.  */
   result = 0;
+# endif
 #endif
 
   return result;
diff --git a/libio/libio.h b/libio/libio.h
index 0f9a8906b6..d26a5e5979 100644
--- a/libio/libio.h
+++ b/libio/libio.h
@@ -28,6 +28,7 @@
 #define _IO_STDIO_H
 
 #include <_G_config.h>
+/* ALL of these should be defined in _G_config.h */
 #define _IO_pos_t _G_fpos_t /* obsolete */
 #define _IO_fpos_t _G_fpos_t
 #define _IO_fpos64_t _G_fpos64_t
@@ -197,6 +198,7 @@ enum __codecvt_result
   __codecvt_noconv
 };
 
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
 /* The order of the elements in the following struct must match the order
    of the virtual functions in the libstdc++ codecvt class.  */
 struct _IO_codecvt
@@ -243,14 +245,19 @@ struct _IO_wide_data
 				   backup area */
   wchar_t *_IO_save_end;	/* Pointer to end of non-current get area. */
 
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   __mbstate_t _IO_state;
   __mbstate_t _IO_last_state;
+#endif
   struct _IO_codecvt _codecvt;
 
   wchar_t _shortbuf[1];
 
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   struct _IO_jump_t *_wide_vtable;
+#endif
 };
+#endif
 
 struct _IO_FILE {
   int _flags;		/* High-order word is _IO_MAGIC; rest is flags. */
@@ -297,9 +304,14 @@ struct _IO_FILE_complete
 #endif
 #if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001
   _IO_off64_t _offset;
+# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
   /* Wide character stream stuff.  */
   struct _IO_codecvt *_codecvt;
   struct _IO_wide_data *_wide_data;
+# else
+  void *__pad1;
+  void *__pad2;
+# endif
   int _mode;
   /* Make sure we don't get into trouble again.  */
   char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];
@@ -414,31 +426,11 @@ extern _IO_wint_t __woverflow (_IO_FILE *, _IO_wint_t) __THROW;
 
 extern int _IO_getc (_IO_FILE *__fp) __THROW;
 extern int _IO_putc (int __c, _IO_FILE *__fp) __THROW;
-extern _IO_wint_t _IO_getwc (_IO_FILE *__fp) __THROW;
-extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp) __THROW;
 extern int _IO_feof (_IO_FILE *__fp) __THROW;
 extern int _IO_ferror (_IO_FILE *__fp) __THROW;
 
 extern int _IO_peekc_locked (_IO_FILE *__fp) __THROW;
 
-extern int _IO_fwide (_IO_FILE *__fp, int __mode) __THROW;
-#if __GNUC__ >= 2
-/* A special optimized version of the function above.  It optimizes the
-   case of initializing an unoriented byte stream.  */
-# define _IO_fwide(__fp, __mode) \
-  ({ int __result = (__mode);						      \
-     if (__result < 0)							      \
-       {								      \
-	 if ((__fp)->_mode == 0)					      \
-	   /* We know that all we have to do is to set the flag.  */	      \
-	   (__fp)->_mode = -1;						      \
-	 __result = (__fp)->_mode;					      \
-       }								      \
-     else								      \
-       __result = _IO_fwide (__fp, __result);				      \
-     __result; })
-#endif
-
 /* This one is for Emacs. */
 #define _IO_PENDING_OUTPUT_COUNT(_fp)	\
 	((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
@@ -460,21 +452,44 @@ extern int _IO_ftrylockfile (_IO_FILE *) __THROW;
 
 extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
 			_IO_va_list, int *__restrict) __THROW;
-extern int _IO_vfwscanf (_IO_FILE * __restrict, const wchar_t * __restrict,
-			 _IO_va_list, int *__restrict) __THROW;
 extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
 			 _IO_va_list) __THROW;
-extern int _IO_vfwprintf (_IO_FILE *__restrict, const wchar_t *__restrict,
-			  _IO_va_list) __THROW;
 extern _IO_ssize_t _IO_padn (_IO_FILE *, int, _IO_ssize_t) __THROW;
-extern _IO_ssize_t _IO_wpadn (_IO_FILE *, wint_t, _IO_ssize_t) __THROW;
 extern _IO_size_t _IO_sgetn (_IO_FILE *, void *, _IO_size_t) __THROW;
 
 extern _IO_off64_t _IO_seekoff (_IO_FILE *, _IO_off64_t, int, int) __THROW;
 extern _IO_off64_t _IO_seekpos (_IO_FILE *, _IO_off64_t, int) __THROW;
 
 extern void _IO_free_backup_area (_IO_FILE *) __THROW;
+
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+extern _IO_wint_t _IO_getwc (_IO_FILE *__fp) __THROW;
+extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp) __THROW;
+extern int _IO_fwide (_IO_FILE *__fp, int __mode) __THROW;
+# if __GNUC__ >= 2
+/* A special optimized version of the function above.  It optimizes the
+   case of initializing an unoriented byte stream.  */
+#  define _IO_fwide(__fp, __mode) \
+  ({ int __result = (__mode);						      \
+     if (__result < 0)							      \
+       {								      \
+	 if ((__fp)->_mode == 0)					      \
+	   /* We know that all we have to do is to set the flag.  */	      \
+	   (__fp)->_mode = -1;						      \
+	 __result = (__fp)->_mode;					      \
+       }								      \
+     else								      \
+       __result = _IO_fwide (__fp, __result);				      \
+     __result; })
+# endif
+
+extern int _IO_vfwscanf (_IO_FILE * __restrict, const wchar_t * __restrict,
+			 _IO_va_list, int *__restrict) __THROW;
+extern int _IO_vfwprintf (_IO_FILE *__restrict, const wchar_t *__restrict,
+			  _IO_va_list) __THROW;
+extern _IO_ssize_t _IO_wpadn (_IO_FILE *, wint_t, _IO_ssize_t) __THROW;
 extern void _IO_free_wbackup_area (_IO_FILE *) __THROW;
+#endif
 
 #ifdef __cplusplus
 }
diff --git a/libio/libioP.h b/libio/libioP.h
index 6d3b775704..4bbee9cba0 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -256,7 +256,7 @@ typedef int (*_IO_stat_t) __PMT ((_IO_FILE *, void *));
 /* The 'showmany' hook can be used to get an image how much input is
    available.  In many cases the answer will be 0 which means unknown
    but some cases one can provide real information.  */
-typedef size_t (*_IO_showmanyc_t) __PMT ((_IO_FILE *));
+typedef int (*_IO_showmanyc_t) __PMT ((_IO_FILE *));
 #define _IO_SHOWMANYC(FP) JUMP0 (__showmanyc, FP)
 #define _IO_WSHOWMANYC(FP) WJUMP0 (__showmanyc, FP)
 
@@ -404,7 +404,7 @@ extern int _IO_default_stat __P ((_IO_FILE *, void *));
 extern _IO_off64_t _IO_default_seek __P ((_IO_FILE *, _IO_off64_t, int));
 extern int _IO_default_sync __P ((_IO_FILE *));
 #define _IO_default_close ((_IO_close_t) _IO_default_sync)
-extern size_t _IO_default_showmanyc __P ((_IO_FILE *));
+extern int _IO_default_showmanyc __P ((_IO_FILE *));
 extern void _IO_default_imbue __P ((_IO_FILE *, void *));
 
 extern struct _IO_jump_t _IO_file_jumps;
@@ -433,13 +433,19 @@ extern int _IO_new_fsetpos64 __P ((_IO_FILE *, const _IO_fpos64_t *));
 extern int _IO_old_fsetpos64 __P ((_IO_FILE *, const _IO_fpos64_t *));
 
 
-#define _IO_do_flush(_f) \
+#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+# define _IO_do_flush(_f) \
   ((_f)->_mode <= 0							      \
    ? _IO_do_write(_f, (_f)->_IO_write_base,				      \
 		  (_f)->_IO_write_ptr-(_f)->_IO_write_base)		      \
    : _IO_wdo_write(_f, (_f)->_wide_data->_IO_write_base,		      \
 		   ((_f)->_wide_data->_IO_write_ptr			      \
 		    - (_f)->_wide_data->_IO_write_base)))
+#else
+# define _IO_do_flush(_f) \
+   _IO_do_write(_f, (_f)->_IO_write_base,				      \
+		(_f)->_IO_write_ptr-(_f)->_IO_write_base)
+#endif
 #define _IO_old_do_flush(_f) \
   _IO_old_do_write(_f, (_f)->_IO_write_base, \
 		   (_f)->_IO_write_ptr-(_f)->_IO_write_base)
@@ -708,14 +714,22 @@ extern int _IO_vscanf __P ((const char *, _IO_va_list));
 # ifdef _IO_USE_OLD_IO_FILE
 #  define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
        { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
-         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
+	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
 	 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock }
 # else
-#  define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
+#  if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+#   define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
        { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
-         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
+	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
 	 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\
 	 NULL, WDP, 0 }
+#  else
+#   define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
+       { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
+	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
+	 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\
+	 0 }
+#  endif
 # endif
 #else
 # ifdef _IO_USE_OLD_IO_FILE
@@ -724,11 +738,19 @@ extern int _IO_vscanf __P ((const char *, _IO_va_list));
 	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
 	 0, _IO_pos_BAD }
 # else
-#  define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
+#  if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+#   define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
        { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
-         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
+	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
 	 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \
 	 NULL, WDP, 0 }
+#  else
+#   define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
+       { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
+	 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
+	 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \
+	 0 }
+#  endif
 # endif
 #endif
 
diff --git a/libio/stdfiles.c b/libio/stdfiles.c
index 866746d437..b81fef8b88 100644
--- a/libio/stdfiles.c
+++ b/libio/stdfiles.c
@@ -33,20 +33,35 @@
 #include "libioP.h"
 
 #ifdef _IO_MTSAFE_IO
-#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+#  define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
   static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
   static struct _IO_wide_data _IO_wide_data_##FD \
     = { ._wide_vtable = &_IO_wfile_jumps }; \
   struct _IO_FILE_plus NAME \
     = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \
        &_IO_file_jumps};
+# else
+#  define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+  static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
+  struct _IO_FILE_plus NAME \
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), \
+       &_IO_file_jumps};
+# endif
 #else
-#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
+#  define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
   static struct _IO_wide_data _IO_wide_data_##FD \
     = { ._wide_vtable = &_IO_wfile_jumps }; \
   struct _IO_FILE_plus NAME \
     = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \
        &_IO_file_jumps};
+# else
+#  define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
+  struct _IO_FILE_plus NAME \
+    = {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), \
+       &_IO_file_jumps};
+# endif
 #endif
 
 DEF_STDFILE(_IO_2_1_stdin_, 0, 0, _IO_NO_WRITES);
diff --git a/libio/stdio.c b/libio/stdio.c
index 79d605de05..3b897ced17 100644
--- a/libio/stdio.c
+++ b/libio/stdio.c
@@ -29,13 +29,15 @@
 #undef stdin
 #undef stdout
 #undef stderr
-FILE *stdin = (FILE *) &_IO_2_1_stdin_;
-FILE *stdout = (FILE *) &_IO_2_1_stdout_;
-FILE *stderr = (FILE *) &_IO_2_1_stderr_;
+_IO_FILE *stdin = (FILE *) &_IO_2_1_stdin_;
+_IO_FILE *stdout = (FILE *) &_IO_2_1_stdout_;
+_IO_FILE *stderr = (FILE *) &_IO_2_1_stderr_;
 
 #undef _IO_stdin
 #undef _IO_stdout
 #undef _IO_stderr
+#ifdef _LIBC
 strong_alias (stdin, _IO_stdin);
 strong_alias (stdout, _IO_stdout);
 strong_alias (stderr, _IO_stderr);
+#endif
diff --git a/libio/wfileops.c b/libio/wfileops.c
index 775690ef27..f12cb22a7d 100644
--- a/libio/wfileops.c
+++ b/libio/wfileops.c
@@ -33,6 +33,23 @@
 #include <string.h>
 
 
+#ifndef _LIBC
+# define _IO_new_do_write _IO_do_write
+# define _IO_new_file_attach _IO_file_attach
+# define _IO_new_file_close_it _IO_file_close_it
+# define _IO_new_file_finish _IO_file_finish
+# define _IO_new_file_fopen _IO_file_fopen
+# define _IO_new_file_init _IO_file_init
+# define _IO_new_file_setbuf _IO_file_setbuf
+# define _IO_new_file_sync _IO_file_sync
+# define _IO_new_file_overflow _IO_file_overflow
+# define _IO_new_file_seekoff _IO_file_seekoff
+# define _IO_new_file_underflow _IO_file_underflow
+# define _IO_new_file_write _IO_file_write
+# define _IO_new_file_xsputn _IO_file_xsputn
+#endif
+
+
 _IO_FILE *
 _IO_wfile_setbuf (fp, p, len)
      _IO_FILE *fp;
diff --git a/libio/wgenops.c b/libio/wgenops.c
index 242f3a0077..fa0aab36af 100644
--- a/libio/wgenops.c
+++ b/libio/wgenops.c
@@ -35,6 +35,10 @@
 #include <wchar.h>
 
 
+#ifndef _LIBC
+# define __wmemcpy(dst, src, n) wmemcpy (dst, src, n)
+#endif
+
 
 static int save_for_wbackup __P ((_IO_FILE *fp, wchar_t *end_p))
 #ifdef _LIBC