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diff --git a/i686-linux-gnu-4.7/usr/include/stdio.h b/i686-linux-gnu-4.7/usr/include/stdio.h
new file mode 100644
index 0000000..739e086
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/stdio.h
@@ -0,0 +1,881 @@
+/* Define ISO C stdio on top of C++ iostreams.
+   Copyright (C) 1991-2018 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*
+ *	ISO C99 Standard: 7.19 Input/output	<stdio.h>
+ */
+
+#ifndef _STDIO_H
+#define _STDIO_H	1
+
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
+
+__BEGIN_DECLS
+
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
+
+#define __need___va_list
+#include <stdarg.h>
+
+#include <bits/types.h>
+#include <bits/types/__fpos_t.h>
+#include <bits/types/__fpos64_t.h>
+#include <bits/types/__FILE.h>
+#include <bits/types/FILE.h>
+#include <bits/types/struct_FILE.h>
+
+#ifdef __USE_GNU
+# include <bits/types/cookie_io_functions_t.h>
+#endif
+
+#if defined __USE_XOPEN || defined __USE_XOPEN2K8
+# ifdef __GNUC__
+#  ifndef _VA_LIST_DEFINED
+typedef __gnuc_va_list va_list;
+#   define _VA_LIST_DEFINED
+#  endif
+# else
+#  include <stdarg.h>
+# endif
+#endif
+
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+# ifndef __off_t_defined
+# ifndef __USE_FILE_OFFSET64
+typedef __off_t off_t;
+# else
+typedef __off64_t off_t;
+# endif
+# define __off_t_defined
+# endif
+# if defined __USE_LARGEFILE64 && !defined __off64_t_defined
+typedef __off64_t off64_t;
+# define __off64_t_defined
+# endif
+#endif
+
+#ifdef __USE_XOPEN2K8
+# ifndef __ssize_t_defined
+typedef __ssize_t ssize_t;
+# define __ssize_t_defined
+# endif
+#endif
+
+/* The type of the second argument to `fgetpos' and `fsetpos'.  */
+#ifndef __USE_FILE_OFFSET64
+typedef __fpos_t fpos_t;
+#else
+typedef __fpos64_t fpos_t;
+#endif
+#ifdef __USE_LARGEFILE64
+typedef __fpos64_t fpos64_t;
+#endif
+
+/* The possibilities for the third argument to `setvbuf'.  */
+#define _IOFBF 0		/* Fully buffered.  */
+#define _IOLBF 1		/* Line buffered.  */
+#define _IONBF 2		/* No buffering.  */
+
+
+/* Default buffer size.  */
+#define BUFSIZ 8192
+
+
+/* The value returned by fgetc and similar functions to indicate the
+   end of the file.  */
+#define EOF (-1)
+
+
+/* The possibilities for the third argument to `fseek'.
+   These values should not be changed.  */
+#define SEEK_SET	0	/* Seek from beginning of file.  */
+#define SEEK_CUR	1	/* Seek from current position.  */
+#define SEEK_END	2	/* Seek from end of file.  */
+#ifdef __USE_GNU
+# define SEEK_DATA	3	/* Seek to next data.  */
+# define SEEK_HOLE	4	/* Seek to next hole.  */
+#endif
+
+
+#if defined __USE_MISC || defined __USE_XOPEN
+/* Default path prefix for `tempnam' and `tmpnam'.  */
+# define P_tmpdir	"/tmp"
+#endif
+
+
+/* Get the values:
+   L_tmpnam	How long an array of chars must be to be passed to `tmpnam'.
+   TMP_MAX	The minimum number of unique filenames generated by tmpnam
+		(and tempnam when it uses tmpnam's name space),
+		or tempnam (the two are separate).
+   L_ctermid	How long an array to pass to `ctermid'.
+   L_cuserid	How long an array to pass to `cuserid'.
+   FOPEN_MAX	Minimum number of files that can be open at once.
+   FILENAME_MAX	Maximum length of a filename.  */
+#include <bits/stdio_lim.h>
+
+
+/* Standard streams.  */
+extern FILE *stdin;		/* Standard input stream.  */
+extern FILE *stdout;		/* Standard output stream.  */
+extern FILE *stderr;		/* Standard error output stream.  */
+/* C89/C99 say they're macros.  Make them happy.  */
+#define stdin stdin
+#define stdout stdout
+#define stderr stderr
+
+/* Remove file FILENAME.  */
+extern int remove (const char *__filename) __THROW;
+/* Rename file OLD to NEW.  */
+extern int rename (const char *__old, const char *__new) __THROW;
+
+#ifdef __USE_ATFILE
+/* Rename file OLD relative to OLDFD to NEW relative to NEWFD.  */
+extern int renameat (int __oldfd, const char *__old, int __newfd,
+		     const char *__new) __THROW;
+#endif
+
+#ifdef __USE_GNU
+/* Flags for renameat2.  */
+# define RENAME_NOREPLACE (1 << 0)
+# define RENAME_EXCHANGE (1 << 1)
+# define RENAME_WHITEOUT (1 << 2)
+
+/* Rename file OLD relative to OLDFD to NEW relative to NEWFD, with
+   additional flags.  */
+extern int renameat2 (int __oldfd, const char *__old, int __newfd,
+		      const char *__new, unsigned int __flags) __THROW;
+#endif
+
+/* Create a temporary file and open it read/write.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+#ifndef __USE_FILE_OFFSET64
+extern FILE *tmpfile (void) __wur;
+#else
+# ifdef __REDIRECT
+extern FILE *__REDIRECT (tmpfile, (void), tmpfile64) __wur;
+# else
+#  define tmpfile tmpfile64
+# endif
+#endif
+
+#ifdef __USE_LARGEFILE64
+extern FILE *tmpfile64 (void) __wur;
+#endif
+
+/* Generate a temporary filename.  */
+extern char *tmpnam (char *__s) __THROW __wur;
+
+#ifdef __USE_MISC
+/* This is the reentrant variant of `tmpnam'.  The only difference is
+   that it does not allow S to be NULL.  */
+extern char *tmpnam_r (char *__s) __THROW __wur;
+#endif
+
+
+#if defined __USE_MISC || defined __USE_XOPEN
+/* Generate a unique temporary filename using up to five characters of PFX
+   if it is not NULL.  The directory to put this file in is searched for
+   as follows: First the environment variable "TMPDIR" is checked.
+   If it contains the name of a writable directory, that directory is used.
+   If not and if DIR is not NULL, that value is checked.  If that fails,
+   P_tmpdir is tried and finally "/tmp".  The storage for the filename
+   is allocated by `malloc'.  */
+extern char *tempnam (const char *__dir, const char *__pfx)
+     __THROW __attribute_malloc__ __wur;
+#endif
+
+
+/* Close STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fclose (FILE *__stream);
+/* Flush STREAM, or all streams if STREAM is NULL.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fflush (FILE *__stream);
+
+#ifdef __USE_MISC
+/* Faster versions when locking is not required.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern int fflush_unlocked (FILE *__stream);
+#endif
+
+#ifdef __USE_GNU
+/* Close all streams.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern int fcloseall (void);
+#endif
+
+
+#ifndef __USE_FILE_OFFSET64
+/* Open a file and create a new stream for it.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern FILE *fopen (const char *__restrict __filename,
+		    const char *__restrict __modes) __wur;
+/* Open a file, replacing an existing stream with it.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern FILE *freopen (const char *__restrict __filename,
+		      const char *__restrict __modes,
+		      FILE *__restrict __stream) __wur;
+#else
+# ifdef __REDIRECT
+extern FILE *__REDIRECT (fopen, (const char *__restrict __filename,
+				 const char *__restrict __modes), fopen64)
+  __wur;
+extern FILE *__REDIRECT (freopen, (const char *__restrict __filename,
+				   const char *__restrict __modes,
+				   FILE *__restrict __stream), freopen64)
+  __wur;
+# else
+#  define fopen fopen64
+#  define freopen freopen64
+# endif
+#endif
+#ifdef __USE_LARGEFILE64
+extern FILE *fopen64 (const char *__restrict __filename,
+		      const char *__restrict __modes) __wur;
+extern FILE *freopen64 (const char *__restrict __filename,
+			const char *__restrict __modes,
+			FILE *__restrict __stream) __wur;
+#endif
+
+#ifdef	__USE_POSIX
+/* Create a new stream that refers to an existing system file descriptor.  */
+extern FILE *fdopen (int __fd, const char *__modes) __THROW __wur;
+#endif
+
+#ifdef	__USE_GNU
+/* Create a new stream that refers to the given magic cookie,
+   and uses the given functions for input and output.  */
+extern FILE *fopencookie (void *__restrict __magic_cookie,
+			  const char *__restrict __modes,
+			  cookie_io_functions_t __io_funcs) __THROW __wur;
+#endif
+
+#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
+/* Create a new stream that refers to a memory buffer.  */
+extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)
+  __THROW __wur;
+
+/* Open a stream that writes into a malloc'd buffer that is expanded as
+   necessary.  *BUFLOC and *SIZELOC are updated with the buffer's location
+   and the number of characters written on fflush or fclose.  */
+extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __THROW __wur;
+#endif
+
+
+/* If BUF is NULL, make STREAM unbuffered.
+   Else make it use buffer BUF, of size BUFSIZ.  */
+extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __THROW;
+/* Make STREAM use buffering mode MODE.
+   If BUF is not NULL, use N bytes of it for buffering;
+   else allocate an internal buffer N bytes long.  */
+extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
+		    int __modes, size_t __n) __THROW;
+
+#ifdef	__USE_MISC
+/* If BUF is NULL, make STREAM unbuffered.
+   Else make it use SIZE bytes of BUF for buffering.  */
+extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
+		       size_t __size) __THROW;
+
+/* Make STREAM line-buffered.  */
+extern void setlinebuf (FILE *__stream) __THROW;
+#endif
+
+
+/* Write formatted output to STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fprintf (FILE *__restrict __stream,
+		    const char *__restrict __format, ...);
+/* Write formatted output to stdout.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int printf (const char *__restrict __format, ...);
+/* Write formatted output to S.  */
+extern int sprintf (char *__restrict __s,
+		    const char *__restrict __format, ...) __THROWNL;
+
+/* Write formatted output to S from argument list ARG.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,
+		     __gnuc_va_list __arg);
+/* Write formatted output to stdout from argument list ARG.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);
+/* Write formatted output to S from argument list ARG.  */
+extern int vsprintf (char *__restrict __s, const char *__restrict __format,
+		     __gnuc_va_list __arg) __THROWNL;
+
+#if defined __USE_ISOC99 || defined __USE_UNIX98
+/* Maximum chars of output to write in MAXLEN.  */
+extern int snprintf (char *__restrict __s, size_t __maxlen,
+		     const char *__restrict __format, ...)
+     __THROWNL __attribute__ ((__format__ (__printf__, 3, 4)));
+
+extern int vsnprintf (char *__restrict __s, size_t __maxlen,
+		      const char *__restrict __format, __gnuc_va_list __arg)
+     __THROWNL __attribute__ ((__format__ (__printf__, 3, 0)));
+#endif
+
+#if __GLIBC_USE (LIB_EXT2)
+/* Write formatted output to a string dynamically allocated with `malloc'.
+   Store the address of the string in *PTR.  */
+extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,
+		      __gnuc_va_list __arg)
+     __THROWNL __attribute__ ((__format__ (__printf__, 2, 0))) __wur;
+extern int __asprintf (char **__restrict __ptr,
+		       const char *__restrict __fmt, ...)
+     __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;
+extern int asprintf (char **__restrict __ptr,
+		     const char *__restrict __fmt, ...)
+     __THROWNL __attribute__ ((__format__ (__printf__, 2, 3))) __wur;
+#endif
+
+#ifdef __USE_XOPEN2K8
+/* Write formatted output to a file descriptor.  */
+extern int vdprintf (int __fd, const char *__restrict __fmt,
+		     __gnuc_va_list __arg)
+     __attribute__ ((__format__ (__printf__, 2, 0)));
+extern int dprintf (int __fd, const char *__restrict __fmt, ...)
+     __attribute__ ((__format__ (__printf__, 2, 3)));
+#endif
+
+
+/* Read formatted input from STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fscanf (FILE *__restrict __stream,
+		   const char *__restrict __format, ...) __wur;
+/* Read formatted input from stdin.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int scanf (const char *__restrict __format, ...) __wur;
+/* Read formatted input from S.  */
+extern int sscanf (const char *__restrict __s,
+		   const char *__restrict __format, ...) __THROW;
+
+#if defined __USE_ISOC99 && !defined __USE_GNU \
+    && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
+    && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+# ifdef __REDIRECT
+/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[
+   GNU extension which conflicts with valid %a followed by letter
+   s, S or [.  */
+extern int __REDIRECT (fscanf, (FILE *__restrict __stream,
+				const char *__restrict __format, ...),
+		       __isoc99_fscanf) __wur;
+extern int __REDIRECT (scanf, (const char *__restrict __format, ...),
+		       __isoc99_scanf) __wur;
+extern int __REDIRECT_NTH (sscanf, (const char *__restrict __s,
+				    const char *__restrict __format, ...),
+			   __isoc99_sscanf);
+# else
+extern int __isoc99_fscanf (FILE *__restrict __stream,
+			    const char *__restrict __format, ...) __wur;
+extern int __isoc99_scanf (const char *__restrict __format, ...) __wur;
+extern int __isoc99_sscanf (const char *__restrict __s,
+			    const char *__restrict __format, ...) __THROW;
+#  define fscanf __isoc99_fscanf
+#  define scanf __isoc99_scanf
+#  define sscanf __isoc99_sscanf
+# endif
+#endif
+
+#ifdef	__USE_ISOC99
+/* Read formatted input from S into argument list ARG.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,
+		    __gnuc_va_list __arg)
+     __attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
+
+/* Read formatted input from stdin into argument list ARG.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)
+     __attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
+
+/* Read formatted input from S into argument list ARG.  */
+extern int vsscanf (const char *__restrict __s,
+		    const char *__restrict __format, __gnuc_va_list __arg)
+     __THROW __attribute__ ((__format__ (__scanf__, 2, 0)));
+
+# if !defined __USE_GNU \
+     && (!defined __LDBL_COMPAT || !defined __REDIRECT) \
+     && (defined __STRICT_ANSI__ || defined __USE_XOPEN2K)
+#  ifdef __REDIRECT
+/* For strict ISO C99 or POSIX compliance disallow %as, %aS and %a[
+   GNU extension which conflicts with valid %a followed by letter
+   s, S or [.  */
+extern int __REDIRECT (vfscanf,
+		       (FILE *__restrict __s,
+			const char *__restrict __format, __gnuc_va_list __arg),
+		       __isoc99_vfscanf)
+     __attribute__ ((__format__ (__scanf__, 2, 0))) __wur;
+extern int __REDIRECT (vscanf, (const char *__restrict __format,
+				__gnuc_va_list __arg), __isoc99_vscanf)
+     __attribute__ ((__format__ (__scanf__, 1, 0))) __wur;
+extern int __REDIRECT_NTH (vsscanf,
+			   (const char *__restrict __s,
+			    const char *__restrict __format,
+			    __gnuc_va_list __arg), __isoc99_vsscanf)
+     __attribute__ ((__format__ (__scanf__, 2, 0)));
+#  else
+extern int __isoc99_vfscanf (FILE *__restrict __s,
+			     const char *__restrict __format,
+			     __gnuc_va_list __arg) __wur;
+extern int __isoc99_vscanf (const char *__restrict __format,
+			    __gnuc_va_list __arg) __wur;
+extern int __isoc99_vsscanf (const char *__restrict __s,
+			     const char *__restrict __format,
+			     __gnuc_va_list __arg) __THROW;
+#   define vfscanf __isoc99_vfscanf
+#   define vscanf __isoc99_vscanf
+#   define vsscanf __isoc99_vsscanf
+#  endif
+# endif
+#endif /* Use ISO C9x.  */
+
+
+/* Read a character from STREAM.
+
+   These functions are possible cancellation points and therefore not
+   marked with __THROW.  */
+extern int fgetc (FILE *__stream);
+extern int getc (FILE *__stream);
+
+/* Read a character from stdin.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int getchar (void);
+
+#ifdef __USE_POSIX199506
+/* These are defined in POSIX.1:1996.
+
+   These functions are possible cancellation points and therefore not
+   marked with __THROW.  */
+extern int getc_unlocked (FILE *__stream);
+extern int getchar_unlocked (void);
+#endif /* Use POSIX.  */
+
+#ifdef __USE_MISC
+/* Faster version when locking is not necessary.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern int fgetc_unlocked (FILE *__stream);
+#endif /* Use MISC.  */
+
+
+/* Write a character to STREAM.
+
+   These functions are possible cancellation points and therefore not
+   marked with __THROW.
+
+   These functions is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fputc (int __c, FILE *__stream);
+extern int putc (int __c, FILE *__stream);
+
+/* Write a character to stdout.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int putchar (int __c);
+
+#ifdef __USE_MISC
+/* Faster version when locking is not necessary.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern int fputc_unlocked (int __c, FILE *__stream);
+#endif /* Use MISC.  */
+
+#ifdef __USE_POSIX199506
+/* These are defined in POSIX.1:1996.
+
+   These functions are possible cancellation points and therefore not
+   marked with __THROW.  */
+extern int putc_unlocked (int __c, FILE *__stream);
+extern int putchar_unlocked (int __c);
+#endif /* Use POSIX.  */
+
+
+#if defined __USE_MISC \
+    || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
+/* Get a word (int) from STREAM.  */
+extern int getw (FILE *__stream);
+
+/* Write a word (int) to STREAM.  */
+extern int putw (int __w, FILE *__stream);
+#endif
+
+
+/* Get a newline-terminated string of finite length from STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
+     __wur;
+
+#if __GLIBC_USE (DEPRECATED_GETS)
+/* Get a newline-terminated string from stdin, removing the newline.
+
+   This function is impossible to use safely.  It has been officially
+   removed from ISO C11 and ISO C++14, and we have also removed it
+   from the _GNU_SOURCE feature list.  It remains available when
+   explicitly using an old ISO C, Unix, or POSIX standard.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern char *gets (char *__s) __wur __attribute_deprecated__;
+#endif
+
+#ifdef __USE_GNU
+/* This function does the same as `fgets' but does not lock the stream.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern char *fgets_unlocked (char *__restrict __s, int __n,
+			     FILE *__restrict __stream) __wur;
+#endif
+
+
+#if defined __USE_XOPEN2K8 || __GLIBC_USE (LIB_EXT2)
+/* Read up to (and including) a DELIMITER from STREAM into *LINEPTR
+   (and null-terminate it). *LINEPTR is a pointer returned from malloc (or
+   NULL), pointing to *N characters of space.  It is realloc'd as
+   necessary.  Returns the number of characters read (not including the
+   null terminator), or -1 on error or EOF.
+
+   These functions are not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation they are cancellation points and
+   therefore not marked with __THROW.  */
+extern __ssize_t __getdelim (char **__restrict __lineptr,
+                             size_t *__restrict __n, int __delimiter,
+                             FILE *__restrict __stream) __wur;
+extern __ssize_t getdelim (char **__restrict __lineptr,
+                           size_t *__restrict __n, int __delimiter,
+                           FILE *__restrict __stream) __wur;
+
+/* Like `getdelim', but reads up to a newline.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern __ssize_t getline (char **__restrict __lineptr,
+                          size_t *__restrict __n,
+                          FILE *__restrict __stream) __wur;
+#endif
+
+
+/* Write a string to STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fputs (const char *__restrict __s, FILE *__restrict __stream);
+
+/* Write a string, followed by a newline, to stdout.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int puts (const char *__s);
+
+
+/* Push a character back onto the input buffer of STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int ungetc (int __c, FILE *__stream);
+
+
+/* Read chunks of generic data from STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern size_t fread (void *__restrict __ptr, size_t __size,
+		     size_t __n, FILE *__restrict __stream) __wur;
+/* Write chunks of generic data to STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern size_t fwrite (const void *__restrict __ptr, size_t __size,
+		      size_t __n, FILE *__restrict __s);
+
+#ifdef __USE_GNU
+/* This function does the same as `fputs' but does not lock the stream.
+
+   This function is not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation it is a cancellation point and
+   therefore not marked with __THROW.  */
+extern int fputs_unlocked (const char *__restrict __s,
+			   FILE *__restrict __stream);
+#endif
+
+#ifdef __USE_MISC
+/* Faster versions when locking is not necessary.
+
+   These functions are not part of POSIX and therefore no official
+   cancellation point.  But due to similarity with an POSIX interface
+   or due to the implementation they are cancellation points and
+   therefore not marked with __THROW.  */
+extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
+			      size_t __n, FILE *__restrict __stream) __wur;
+extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size,
+			       size_t __n, FILE *__restrict __stream);
+#endif
+
+
+/* Seek to a certain position on STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fseek (FILE *__stream, long int __off, int __whence);
+/* Return the current position of STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern long int ftell (FILE *__stream) __wur;
+/* Rewind to the beginning of STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern void rewind (FILE *__stream);
+
+/* The Single Unix Specification, Version 2, specifies an alternative,
+   more adequate interface for the two functions above which deal with
+   file offset.  `long int' is not the right type.  These definitions
+   are originally defined in the Large File Support API.  */
+
+#if defined __USE_LARGEFILE || defined __USE_XOPEN2K
+# ifndef __USE_FILE_OFFSET64
+/* Seek to a certain position on STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fseeko (FILE *__stream, __off_t __off, int __whence);
+/* Return the current position of STREAM.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern __off_t ftello (FILE *__stream) __wur;
+# else
+#  ifdef __REDIRECT
+extern int __REDIRECT (fseeko,
+		       (FILE *__stream, __off64_t __off, int __whence),
+		       fseeko64);
+extern __off64_t __REDIRECT (ftello, (FILE *__stream), ftello64);
+#  else
+#   define fseeko fseeko64
+#   define ftello ftello64
+#  endif
+# endif
+#endif
+
+#ifndef __USE_FILE_OFFSET64
+/* Get STREAM's position.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);
+/* Set STREAM's position.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int fsetpos (FILE *__stream, const fpos_t *__pos);
+#else
+# ifdef __REDIRECT
+extern int __REDIRECT (fgetpos, (FILE *__restrict __stream,
+				 fpos_t *__restrict __pos), fgetpos64);
+extern int __REDIRECT (fsetpos,
+		       (FILE *__stream, const fpos_t *__pos), fsetpos64);
+# else
+#  define fgetpos fgetpos64
+#  define fsetpos fsetpos64
+# endif
+#endif
+
+#ifdef __USE_LARGEFILE64
+extern int fseeko64 (FILE *__stream, __off64_t __off, int __whence);
+extern __off64_t ftello64 (FILE *__stream) __wur;
+extern int fgetpos64 (FILE *__restrict __stream, fpos64_t *__restrict __pos);
+extern int fsetpos64 (FILE *__stream, const fpos64_t *__pos);
+#endif
+
+/* Clear the error and EOF indicators for STREAM.  */
+extern void clearerr (FILE *__stream) __THROW;
+/* Return the EOF indicator for STREAM.  */
+extern int feof (FILE *__stream) __THROW __wur;
+/* Return the error indicator for STREAM.  */
+extern int ferror (FILE *__stream) __THROW __wur;
+
+#ifdef __USE_MISC
+/* Faster versions when locking is not required.  */
+extern void clearerr_unlocked (FILE *__stream) __THROW;
+extern int feof_unlocked (FILE *__stream) __THROW __wur;
+extern int ferror_unlocked (FILE *__stream) __THROW __wur;
+#endif
+
+
+/* Print a message describing the meaning of the value of errno.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern void perror (const char *__s);
+
+/* Provide the declarations for `sys_errlist' and `sys_nerr' if they
+   are available on this system.  Even if available, these variables
+   should not be used directly.  The `strerror' function provides
+   all the necessary functionality.  */
+#include <bits/sys_errlist.h>
+
+
+#ifdef	__USE_POSIX
+/* Return the system file descriptor for STREAM.  */
+extern int fileno (FILE *__stream) __THROW __wur;
+#endif /* Use POSIX.  */
+
+#ifdef __USE_MISC
+/* Faster version when locking is not required.  */
+extern int fileno_unlocked (FILE *__stream) __THROW __wur;
+#endif
+
+
+#ifdef __USE_POSIX2
+/* Create a new stream connected to a pipe running the given command.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern FILE *popen (const char *__command, const char *__modes) __wur;
+
+/* Close a stream opened by popen and return the status of its child.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern int pclose (FILE *__stream);
+#endif
+
+
+#ifdef	__USE_POSIX
+/* Return the name of the controlling terminal.  */
+extern char *ctermid (char *__s) __THROW;
+#endif /* Use POSIX.  */
+
+
+#if (defined __USE_XOPEN && !defined __USE_XOPEN2K) || defined __USE_GNU
+/* Return the name of the current user.  */
+extern char *cuserid (char *__s);
+#endif /* Use X/Open, but not issue 6.  */
+
+
+#ifdef	__USE_GNU
+struct obstack;			/* See <obstack.h>.  */
+
+/* Write formatted output to an obstack.  */
+extern int obstack_printf (struct obstack *__restrict __obstack,
+			   const char *__restrict __format, ...)
+     __THROWNL __attribute__ ((__format__ (__printf__, 2, 3)));
+extern int obstack_vprintf (struct obstack *__restrict __obstack,
+			    const char *__restrict __format,
+			    __gnuc_va_list __args)
+     __THROWNL __attribute__ ((__format__ (__printf__, 2, 0)));
+#endif /* Use GNU.  */
+
+
+#ifdef __USE_POSIX199506
+/* These are defined in POSIX.1:1996.  */
+
+/* Acquire ownership of STREAM.  */
+extern void flockfile (FILE *__stream) __THROW;
+
+/* Try to acquire ownership of STREAM but do not block if it is not
+   possible.  */
+extern int ftrylockfile (FILE *__stream) __THROW __wur;
+
+/* Relinquish the ownership granted for STREAM.  */
+extern void funlockfile (FILE *__stream) __THROW;
+#endif /* POSIX */
+
+#if defined __USE_XOPEN && !defined __USE_XOPEN2K && !defined __USE_GNU
+/*  X/Open Issues 1-5 required getopt to be declared in this
+   header.  It was removed in Issue 6.  GNU follows Issue 6.  */
+# include <bits/getopt_posix.h>
+#endif
+
+/* Slow-path routines used by the optimized inline functions in
+   bits/stdio.h.  */
+extern int __uflow (FILE *);
+extern int __overflow (FILE *, int);
+
+/* If we are compiling with optimizing read this file.  It contains
+   several optimizing inline functions and macros.  */
+#ifdef __USE_EXTERN_INLINES
+# include <bits/stdio.h>
+#endif
+#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
+# include <bits/stdio2.h>
+#endif
+#ifdef __LDBL_COMPAT
+# include <bits/stdio-ldbl.h>
+#endif
+
+__END_DECLS
+
+#endif /* <stdio.h> included.  */