(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 136 insertions, 106 deletions

diff --git a/libio/libioP.h b/libio/libioP.h
index a574b40f77..319b0fd5f3 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -1,5 +1,4 @@
-/* Copyright (C) 1993, 1997-2003,2004,2005,2006,2007
-	Free Software Foundation, Inc.
+/* Copyright (C) 1993, 1997-2003, 2004 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
@@ -36,8 +35,6 @@
 /*# include <comthread.h>*/
 #endif
 
-#include <math_ldbl_opt.h>
-
 #include "iolibio.h"
 
 /* Control of exported symbols.  Used in glibc.  By default we don't
@@ -380,7 +377,7 @@ typedef struct _IO_FILE *_IO_ITER;
 
 extern void _IO_switch_to_main_get_area (_IO_FILE *) __THROW;
 extern void _IO_switch_to_backup_area (_IO_FILE *) __THROW;
-extern int _IO_switch_to_get_mode (_IO_FILE *);
+extern int _IO_switch_to_get_mode (_IO_FILE *) __THROW;
 extern void _IO_init (_IO_FILE *, int) __THROW;
 extern int _IO_sputbackc (_IO_FILE *, int) __THROW;
 extern int _IO_sungetc (_IO_FILE *) __THROW;
@@ -394,7 +391,7 @@ extern unsigned _IO_adjust_column (unsigned, const char *, int) __THROW;
 
 extern void _IO_switch_to_main_wget_area (_IO_FILE *) __THROW;
 extern void _IO_switch_to_wbackup_area (_IO_FILE *) __THROW;
-extern int _IO_switch_to_wget_mode (_IO_FILE *);
+extern int _IO_switch_to_wget_mode (_IO_FILE *) __THROW;
 extern void _IO_wsetb (_IO_FILE *, wchar_t *, wchar_t *, int) __THROW;
 extern wint_t _IO_sputbackwc (_IO_FILE *, wint_t) __THROW;
 extern wint_t _IO_sungetwc (_IO_FILE *) __THROW;
@@ -404,8 +401,8 @@ extern unsigned _IO_adjust_wcolumn (unsigned, const wchar_t *, int) __THROW;
 
 /* Marker-related function. */
 
-extern void _IO_init_marker (struct _IO_marker *, _IO_FILE *);
-extern void _IO_init_wmarker (struct _IO_marker *, _IO_FILE *);
+extern void _IO_init_marker (struct _IO_marker *, _IO_FILE *) __THROW;
+extern void _IO_init_wmarker (struct _IO_marker *, _IO_FILE *) __THROW;
 extern void _IO_remove_marker (struct _IO_marker *) __THROW;
 extern int _IO_marker_difference (struct _IO_marker *, struct _IO_marker *)
      __THROW;
@@ -434,22 +431,22 @@ libc_hidden_proto (_IO_list_resetlock)
 /* Default jumptable functions. */
 
 extern int _IO_default_underflow (_IO_FILE *) __THROW;
-extern int _IO_default_uflow (_IO_FILE *);
-extern wint_t _IO_wdefault_uflow (_IO_FILE *);
+extern int _IO_default_uflow (_IO_FILE *) __THROW;
+extern wint_t _IO_wdefault_uflow (_IO_FILE *) __THROW;
 extern int _IO_default_doallocate (_IO_FILE *) __THROW;
 extern int _IO_wdefault_doallocate (_IO_FILE *) __THROW;
 extern void _IO_default_finish (_IO_FILE *, int) __THROW;
 extern void _IO_wdefault_finish (_IO_FILE *, int) __THROW;
 extern int _IO_default_pbackfail (_IO_FILE *, int) __THROW;
 extern wint_t _IO_wdefault_pbackfail (_IO_FILE *, wint_t) __THROW;
-extern _IO_FILE* _IO_default_setbuf (_IO_FILE *, char *, _IO_ssize_t);
+extern _IO_FILE* _IO_default_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
 extern _IO_size_t _IO_default_xsputn (_IO_FILE *, const void *, _IO_size_t);
 extern _IO_size_t _IO_wdefault_xsputn (_IO_FILE *, const void *, _IO_size_t);
 extern _IO_size_t _IO_default_xsgetn (_IO_FILE *, void *, _IO_size_t);
 extern _IO_size_t _IO_wdefault_xsgetn (_IO_FILE *, void *, _IO_size_t);
 extern _IO_off64_t _IO_default_seekoff (_IO_FILE *, _IO_off64_t, int, int)
      __THROW;
-extern _IO_off64_t _IO_default_seekpos (_IO_FILE *, _IO_off64_t, int);
+extern _IO_off64_t _IO_default_seekpos (_IO_FILE *, _IO_off64_t, int) __THROW;
 extern _IO_ssize_t _IO_default_write (_IO_FILE *, const void *, _IO_ssize_t);
 extern _IO_ssize_t _IO_default_read (_IO_FILE *, void *, _IO_ssize_t);
 extern int _IO_default_stat (_IO_FILE *, void *) __THROW;
@@ -472,23 +469,23 @@ extern const struct _IO_jump_t _IO_streambuf_jumps;
 extern const struct _IO_jump_t _IO_old_proc_jumps attribute_hidden;
 extern const struct _IO_jump_t _IO_str_jumps attribute_hidden;
 extern const struct _IO_jump_t _IO_wstr_jumps attribute_hidden;
-extern const struct _IO_codecvt __libio_codecvt attribute_hidden;
-extern int _IO_do_write (_IO_FILE *, const char *, _IO_size_t);
-extern int _IO_new_do_write (_IO_FILE *, const char *, _IO_size_t);
-extern int _IO_old_do_write (_IO_FILE *, const char *, _IO_size_t);
-extern int _IO_wdo_write (_IO_FILE *, const wchar_t *, _IO_size_t);
-extern int _IO_flush_all_lockp (int);
-extern int _IO_flush_all (void);
-extern int _IO_cleanup (void);
-extern void _IO_flush_all_linebuffered (void);
-extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *);
-extern int _IO_old_fgetpos (_IO_FILE *, _IO_fpos_t *);
-extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *);
-extern int _IO_old_fsetpos (_IO_FILE *, const _IO_fpos_t *);
-extern int _IO_new_fgetpos64 (_IO_FILE *, _IO_fpos64_t *);
-extern int _IO_old_fgetpos64 (_IO_FILE *, _IO_fpos64_t *);
-extern int _IO_new_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *);
-extern int _IO_old_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *);
+extern struct _IO_codecvt __libio_codecvt attribute_hidden;
+extern int _IO_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
+extern int _IO_new_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
+extern int _IO_old_do_write (_IO_FILE *, const char *, _IO_size_t) __THROW;
+extern int _IO_wdo_write (_IO_FILE *, const wchar_t *, _IO_size_t) __THROW;
+extern int _IO_flush_all_lockp (int) __THROW;
+extern int _IO_flush_all (void) __THROW;
+extern int _IO_cleanup (void) __THROW;
+extern void _IO_flush_all_linebuffered (void) __THROW;
+extern int _IO_new_fgetpos (_IO_FILE *, _IO_fpos_t *) __THROW;
+extern int _IO_old_fgetpos (_IO_FILE *, _IO_fpos_t *) __THROW;
+extern int _IO_new_fsetpos (_IO_FILE *, const _IO_fpos_t *) __THROW;
+extern int _IO_old_fsetpos (_IO_FILE *, const _IO_fpos_t *) __THROW;
+extern int _IO_new_fgetpos64 (_IO_FILE *, _IO_fpos64_t *) __THROW;
+extern int _IO_old_fgetpos64 (_IO_FILE *, _IO_fpos64_t *) __THROW;
+extern int _IO_new_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *) __THROW;
+extern int _IO_old_fsetpos64 (_IO_FILE *, const _IO_fpos64_t *) __THROW;
 extern void _IO_old_init (_IO_FILE *fp, int flags) __THROW;
 
 
@@ -534,79 +531,95 @@ extern void _IO_old_init (_IO_FILE *fp, int flags) __THROW;
 /* Jumptable functions for files. */
 
 extern int _IO_file_doallocate (_IO_FILE *) __THROW;
-extern _IO_FILE* _IO_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
-extern _IO_off64_t _IO_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
+extern _IO_FILE* _IO_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
+extern _IO_off64_t _IO_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
+     __THROW;
 extern _IO_off64_t _IO_file_seekoff_mmap (_IO_FILE *, _IO_off64_t, int, int)
      __THROW;
-extern _IO_size_t _IO_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
-extern _IO_size_t _IO_file_xsgetn (_IO_FILE *, void *, _IO_size_t);
+extern _IO_size_t _IO_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
+     __THROW;
+extern _IO_size_t _IO_file_xsgetn (_IO_FILE *, void *, _IO_size_t) __THROW;
 extern int _IO_file_stat (_IO_FILE *, void *) __THROW;
 extern int _IO_file_close (_IO_FILE *) __THROW;
 extern int _IO_file_close_mmap (_IO_FILE *) __THROW;
-extern int _IO_file_underflow (_IO_FILE *);
-extern int _IO_file_underflow_mmap (_IO_FILE *);
-extern int _IO_file_underflow_maybe_mmap (_IO_FILE *);
-extern int _IO_file_overflow (_IO_FILE *, int);
+extern int _IO_file_underflow (_IO_FILE *) __THROW;
+extern int _IO_file_underflow_mmap (_IO_FILE *) __THROW;
+extern int _IO_file_underflow_maybe_mmap (_IO_FILE *) __THROW;
+extern int _IO_file_overflow (_IO_FILE *, int) __THROW;
 #define _IO_file_is_open(__fp) ((__fp)->_fileno != -1)
 extern void _IO_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_file_attach (_IO_FILE *, int);
-extern _IO_FILE* _IO_file_open (_IO_FILE *, const char *, int, int, int, int);
+extern _IO_FILE* _IO_file_attach (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_file_open (_IO_FILE *, const char *, int, int, int, int)
+     __THROW;
 libc_hidden_proto (_IO_file_open)
-extern _IO_FILE* _IO_file_fopen (_IO_FILE *, const char *, const char *, int);
-extern _IO_ssize_t _IO_file_write (_IO_FILE *, const void *, _IO_ssize_t);
-extern _IO_ssize_t _IO_file_read (_IO_FILE *, void *, _IO_ssize_t);
-extern int _IO_file_sync (_IO_FILE *);
-extern int _IO_file_close_it (_IO_FILE *);
+extern _IO_FILE* _IO_file_fopen (_IO_FILE *, const char *, const char *, int)
+     __THROW;
+extern _IO_ssize_t _IO_file_write (_IO_FILE *, const void *, _IO_ssize_t)
+     __THROW;
+extern _IO_ssize_t _IO_file_read (_IO_FILE *, void *, _IO_ssize_t) __THROW;
+extern int _IO_file_sync (_IO_FILE *) __THROW;
+extern int _IO_file_close_it (_IO_FILE *) __THROW;
 extern _IO_off64_t _IO_file_seek (_IO_FILE *, _IO_off64_t, int) __THROW;
-extern void _IO_file_finish (_IO_FILE *, int);
+extern void _IO_file_finish (_IO_FILE *, int) __THROW;
 
-extern _IO_FILE* _IO_new_file_attach (_IO_FILE *, int);
-extern int _IO_new_file_close_it (_IO_FILE *);
-extern void _IO_new_file_finish (_IO_FILE *, int);
+extern _IO_FILE* _IO_new_file_attach (_IO_FILE *, int) __THROW;
+extern int _IO_new_file_close_it (_IO_FILE *) __THROW;
+extern void _IO_new_file_finish (_IO_FILE *, int) __THROW;
 extern _IO_FILE* _IO_new_file_fopen (_IO_FILE *, const char *, const char *,
-				     int);
+				     int) __THROW;
 extern void _IO_no_init (_IO_FILE *, int, int, struct _IO_wide_data *,
 			 const struct _IO_jump_t *) __THROW;
 extern void _IO_new_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_new_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
-extern _IO_FILE* _IO_file_setbuf_mmap (_IO_FILE *, char *, _IO_ssize_t);
-extern int _IO_new_file_sync (_IO_FILE *);
-extern int _IO_new_file_underflow (_IO_FILE *);
-extern int _IO_new_file_overflow (_IO_FILE *, int);
-extern _IO_off64_t _IO_new_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
-extern _IO_ssize_t _IO_new_file_write (_IO_FILE *, const void *, _IO_ssize_t);
-extern _IO_size_t _IO_new_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
-
-extern _IO_FILE* _IO_old_file_setbuf (_IO_FILE *, char *, _IO_ssize_t);
-extern _IO_off64_t _IO_old_file_seekoff (_IO_FILE *, _IO_off64_t, int, int);
-extern _IO_size_t _IO_old_file_xsputn (_IO_FILE *, const void *, _IO_size_t);
-extern int _IO_old_file_underflow (_IO_FILE *);
-extern int _IO_old_file_overflow (_IO_FILE *, int);
+extern _IO_FILE* _IO_new_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
+extern _IO_FILE* _IO_file_setbuf_mmap (_IO_FILE *, char *, _IO_ssize_t)
+     __THROW;
+extern int _IO_new_file_sync (_IO_FILE *) __THROW;
+extern int _IO_new_file_underflow (_IO_FILE *) __THROW;
+extern int _IO_new_file_overflow (_IO_FILE *, int) __THROW;
+extern _IO_off64_t _IO_new_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
+     __THROW;
+extern _IO_ssize_t _IO_new_file_write (_IO_FILE *, const void *, _IO_ssize_t)
+     __THROW;
+extern _IO_size_t _IO_new_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
+     __THROW;
+
+extern _IO_FILE* _IO_old_file_setbuf (_IO_FILE *, char *, _IO_ssize_t) __THROW;
+extern _IO_off64_t _IO_old_file_seekoff (_IO_FILE *, _IO_off64_t, int, int)
+     __THROW;
+extern _IO_size_t _IO_old_file_xsputn (_IO_FILE *, const void *, _IO_size_t)
+     __THROW;
+extern int _IO_old_file_underflow (_IO_FILE *) __THROW;
+extern int _IO_old_file_overflow (_IO_FILE *, int) __THROW;
 extern void _IO_old_file_init (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_old_file_attach (_IO_FILE *, int);
-extern _IO_FILE* _IO_old_file_fopen (_IO_FILE *, const char *, const char *);
-extern _IO_ssize_t _IO_old_file_write (_IO_FILE *, const void *, _IO_ssize_t);
-extern int _IO_old_file_sync (_IO_FILE *);
-extern int _IO_old_file_close_it (_IO_FILE *);
-extern void _IO_old_file_finish (_IO_FILE *, int);
+extern _IO_FILE* _IO_old_file_attach (_IO_FILE *, int) __THROW;
+extern _IO_FILE* _IO_old_file_fopen (_IO_FILE *, const char *, const char *)
+     __THROW;
+extern _IO_ssize_t _IO_old_file_write (_IO_FILE *, const void *, _IO_ssize_t)
+     __THROW;
+extern int _IO_old_file_sync (_IO_FILE *) __THROW;
+extern int _IO_old_file_close_it (_IO_FILE *) __THROW;
+extern void _IO_old_file_finish (_IO_FILE *, int) __THROW;
 
 extern int _IO_wfile_doallocate (_IO_FILE *) __THROW;
-extern _IO_size_t _IO_wfile_xsputn (_IO_FILE *, const void *, _IO_size_t);
-extern _IO_FILE* _IO_wfile_setbuf (_IO_FILE *, wchar_t *, _IO_ssize_t);
-extern wint_t _IO_wfile_sync (_IO_FILE *);
-extern wint_t _IO_wfile_underflow (_IO_FILE *);
-extern wint_t _IO_wfile_overflow (_IO_FILE *, wint_t);
-extern _IO_off64_t _IO_wfile_seekoff (_IO_FILE *, _IO_off64_t, int, int);
+extern _IO_size_t _IO_wfile_xsputn (_IO_FILE *, const void *, _IO_size_t)
+     __THROW;
+extern _IO_FILE* _IO_wfile_setbuf (_IO_FILE *, wchar_t *, _IO_ssize_t) __THROW;
+extern wint_t _IO_wfile_sync (_IO_FILE *) __THROW;
+extern wint_t _IO_wfile_underflow (_IO_FILE *) __THROW;
+extern wint_t _IO_wfile_overflow (_IO_FILE *, wint_t) __THROW;
+extern _IO_off64_t _IO_wfile_seekoff (_IO_FILE *, _IO_off64_t, int, int)
+     __THROW;
 
 /* Jumptable functions for proc_files. */
 extern _IO_FILE* _IO_proc_open (_IO_FILE *, const char *, const char *)
      __THROW;
 extern _IO_FILE* _IO_new_proc_open (_IO_FILE *, const char *, const char *)
      __THROW;
-extern _IO_FILE* _IO_old_proc_open (_IO_FILE *, const char *, const char *);
+extern _IO_FILE* _IO_old_proc_open (_IO_FILE *, const char *, const char *)
+     __THROW;
 extern int _IO_proc_close (_IO_FILE *) __THROW;
 extern int _IO_new_proc_close (_IO_FILE *) __THROW;
-extern int _IO_old_proc_close (_IO_FILE *);
+extern int _IO_old_proc_close (_IO_FILE *) __THROW;
 
 /* Jumptable functions for strfiles. */
 extern int _IO_str_underflow (_IO_FILE *) __THROW;
@@ -636,7 +649,7 @@ extern void _IO_wstr_finish (_IO_FILE *, int) __THROW;
 
 extern int _IO_vasprintf (char **result_ptr, __const char *format,
 			  _IO_va_list args) __THROW;
-extern int _IO_vdprintf (int d, __const char *format, _IO_va_list arg);
+extern int _IO_vdprintf (int d, __const char *format, _IO_va_list arg) __THROW;
 extern int _IO_vsnprintf (char *string, _IO_size_t maxlen,
 			  __const char *format, _IO_va_list args) __THROW;
 
@@ -644,62 +657,73 @@ extern int _IO_vsnprintf (char *string, _IO_size_t maxlen,
 extern _IO_size_t _IO_getline (_IO_FILE *,char *, _IO_size_t, int, int);
 extern _IO_size_t _IO_getline_info (_IO_FILE *,char *, _IO_size_t,
 				    int, int, int *);
-extern _IO_ssize_t _IO_getdelim (char **, _IO_size_t *, int, _IO_FILE *);
+extern _IO_ssize_t _IO_getdelim (char **, _IO_size_t *, int, _IO_FILE *)
+     __THROW;
 extern _IO_size_t _IO_getwline (_IO_FILE *,wchar_t *, _IO_size_t, wint_t, int);
 extern _IO_size_t _IO_getwline_info (_IO_FILE *,wchar_t *, _IO_size_t,
 				     wint_t, int, wint_t *);
+extern double _IO_strtod (const char *, char **) __THROW;
+extern char *_IO_dtoa (double __d, int __mode, int __ndigits,
+		       int *__decpt, int *__sign, char **__rve) __THROW;
+extern int _IO_outfloat (double __value, _IO_FILE *__sb, int __type,
+			 int __width, int __precision, int __flags,
+			 int __sign_mode, int __fill) __THROW;
 
 extern struct _IO_FILE_plus *_IO_list_all;
 extern void (*_IO_cleanup_registration_needed) (void);
 
 /* Prototype for functions with alternative entry point.  */
-extern int _IO_flush_all_internal (void);
-extern unsigned _IO_adjust_column_internal (unsigned, const char *, int);
+extern int _IO_flush_all_internal (void) __THROW;
+extern unsigned _IO_adjust_column_internal (unsigned, const char *, int)
+     __THROW;
 
-extern int _IO_default_uflow_internal (_IO_FILE *);
+extern int _IO_default_uflow_internal (_IO_FILE *) __THROW;
 extern void _IO_default_finish_internal (_IO_FILE *, int) __THROW;
 extern int _IO_default_pbackfail_internal (_IO_FILE *, int) __THROW;
 extern _IO_size_t _IO_default_xsputn_internal (_IO_FILE *, const void *,
-					       _IO_size_t);
-extern _IO_size_t _IO_default_xsgetn_internal (_IO_FILE *, void *, _IO_size_t);
+					       _IO_size_t) __THROW;
+extern _IO_size_t _IO_default_xsgetn_internal (_IO_FILE *, void *, _IO_size_t)
+     __THROW;
 extern int _IO_default_doallocate_internal (_IO_FILE *) __THROW;
 extern void _IO_wdefault_finish_internal (_IO_FILE *, int) __THROW;
 extern wint_t _IO_wdefault_pbackfail_internal (_IO_FILE *, wint_t) __THROW;
 extern _IO_size_t _IO_wdefault_xsputn_internal (_IO_FILE *, const void *,
-						_IO_size_t);
+						_IO_size_t) __THROW;
 extern _IO_size_t _IO_wdefault_xsgetn_internal (_IO_FILE *, void *,
-						_IO_size_t);
+						_IO_size_t) __THROW;
 extern int _IO_wdefault_doallocate_internal (_IO_FILE *) __THROW;
-extern wint_t _IO_wdefault_uflow_internal (_IO_FILE *);
+extern wint_t _IO_wdefault_uflow_internal (_IO_FILE *) __THROW;
 
 extern int _IO_file_doallocate_internal (_IO_FILE *) __THROW;
-extern _IO_FILE* _IO_file_setbuf_internal (_IO_FILE *, char *, _IO_ssize_t);
+extern _IO_FILE* _IO_file_setbuf_internal (_IO_FILE *, char *, _IO_ssize_t)
+     __THROW;
 extern _IO_off64_t _IO_file_seekoff_internal (_IO_FILE *, _IO_off64_t,
-					      int, int);
+					      int, int) __THROW;
 extern _IO_size_t _IO_file_xsputn_internal (_IO_FILE *, const void *,
-					    _IO_size_t);
-extern _IO_size_t _IO_file_xsgetn_internal (_IO_FILE *, void *, _IO_size_t);
+					    _IO_size_t) __THROW;
+extern _IO_size_t _IO_file_xsgetn_internal (_IO_FILE *, void *, _IO_size_t)
+     __THROW;
 extern int _IO_file_stat_internal (_IO_FILE *, void *) __THROW;
 extern int _IO_file_close_internal (_IO_FILE *) __THROW;
-extern int _IO_file_close_it_internal (_IO_FILE *);
-extern int _IO_file_underflow_internal (_IO_FILE *);
-extern int _IO_file_overflow_internal (_IO_FILE *, int);
+extern int _IO_file_close_it_internal (_IO_FILE *) __THROW;
+extern int _IO_file_underflow_internal (_IO_FILE *) __THROW;
+extern int _IO_file_overflow_internal (_IO_FILE *, int) __THROW;
 extern void _IO_file_init_internal (struct _IO_FILE_plus *) __THROW;
-extern _IO_FILE* _IO_file_attach_internal (_IO_FILE *, int);
+extern _IO_FILE* _IO_file_attach_internal (_IO_FILE *, int) __THROW;
 extern _IO_FILE* _IO_file_fopen_internal (_IO_FILE *, const char *,
-					  const char *, int);
+					  const char *, int) __THROW;
 extern _IO_ssize_t _IO_file_read_internal (_IO_FILE *, void *,
 					   _IO_ssize_t);
-extern int _IO_file_sync_internal (_IO_FILE *);
+extern int _IO_file_sync_internal (_IO_FILE *) __THROW;
 extern _IO_off64_t _IO_file_seek_internal (_IO_FILE *, _IO_off64_t, int)
      __THROW;
-extern void _IO_file_finish_internal (_IO_FILE *, int);
+extern void _IO_file_finish_internal (_IO_FILE *, int) __THROW;
 
 extern _IO_size_t _IO_wfile_xsputn_internal (_IO_FILE *, const void *,
-					     _IO_size_t);
+					     _IO_size_t) __THROW;
 extern _IO_off64_t _IO_wfile_seekoff_internal (_IO_FILE *, _IO_off64_t,
-					       int, int);
-extern wint_t _IO_wfile_sync_internal (_IO_FILE *);
+					       int, int) __THROW;
+extern wint_t _IO_wfile_sync_internal (_IO_FILE *) __THROW;
 
 extern int _IO_str_underflow_internal (_IO_FILE *) __THROW;
 extern int _IO_str_overflow_internal (_IO_FILE *, int) __THROW;
@@ -720,12 +744,12 @@ extern void _IO_wdoallocbuf_internal (_IO_FILE *) __THROW;
 
 extern _IO_size_t _IO_sgetn_internal (_IO_FILE *, void *, _IO_size_t);
 extern void _IO_flush_all_linebuffered_internal (void) __THROW;
-extern int _IO_switch_to_wget_mode_internal (_IO_FILE *);
+extern int _IO_switch_to_wget_mode_internal (_IO_FILE *) __THROW;
 extern void _IO_unsave_markers_internal (_IO_FILE *) __THROW;
 extern void _IO_switch_to_main_wget_area_internal (_IO_FILE *) __THROW;
 extern int _IO_wdo_write_internal (_IO_FILE *, const wchar_t *, _IO_size_t);
 extern int _IO_do_write_internal (_IO_FILE *, const char *, _IO_size_t);
-extern _IO_ssize_t _IO_padn_internal (_IO_FILE *, int, _IO_ssize_t);
+extern _IO_ssize_t _IO_padn_internal (_IO_FILE *, int, _IO_ssize_t) __THROW;
 extern _IO_size_t _IO_getline_info_internal (_IO_FILE *,char *, _IO_size_t,
 					     int, int, int *);
 extern _IO_size_t _IO_getline_internal (_IO_FILE *, char *, _IO_size_t, int,
@@ -735,7 +759,7 @@ extern void _IO_free_backup_area_internal (_IO_FILE *) __THROW;
 extern void _IO_switch_to_wbackup_area_internal (_IO_FILE *) __THROW;
 extern void _IO_setb_internal (_IO_FILE *, char *, char *, int) __THROW;
 extern wint_t _IO_sputbackwc_internal (_IO_FILE *, wint_t) __THROW;
-extern int _IO_switch_to_get_mode_internal (_IO_FILE *);
+extern int _IO_switch_to_get_mode_internal (_IO_FILE *) __THROW;
 extern int _IO_vfscanf_internal (_IO_FILE * __restrict,
 				 const char * __restrict,
 				 _IO_va_list, int *__restrict);
@@ -745,9 +769,9 @@ extern void _IO_doallocbuf_internal (_IO_FILE *) __THROW;
 extern void _IO_wsetb_internal (_IO_FILE *, wchar_t *, wchar_t *, int)
      __THROW;
 extern _IO_off64_t _IO_seekoff_unlocked (_IO_FILE *, _IO_off64_t, int, int)
-     attribute_hidden;
+     attribute_hidden __THROW;
 extern _IO_off64_t _IO_seekpos_unlocked (_IO_FILE *, _IO_off64_t, int)
-     attribute_hidden;
+     attribute_hidden __THROW;
 extern int _IO_putc_internal (int __c, _IO_FILE *__fp);
 extern void _IO_init_internal (_IO_FILE *, int) __THROW;
 extern void _IO_un_link_internal (struct _IO_FILE_plus *) __THROW;
@@ -839,6 +863,12 @@ extern void _IO_un_link_internal (struct _IO_FILE_plus *) __THROW;
 #ifndef OS_FSTAT
 # define OS_FSTAT fstat
 #endif
+struct stat;
+extern _IO_ssize_t _IO_read (int, void *, _IO_size_t);
+extern _IO_ssize_t _IO_write (int, const void *, _IO_size_t);
+extern _IO_off64_t _IO_lseek (int, _IO_off64_t, int) __THROW;
+extern int _IO_close (int);
+extern int _IO_fstat (int, struct stat *) __THROW;
 extern int _IO_vscanf (const char *, _IO_va_list) __THROW;
 
 /* _IO_pos_BAD is an _IO_off64_t value indicating error, unknown, or EOF. */