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diff --git a/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/stdio.h b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/stdio.h
new file mode 100644
index 0000000..4ab9190
--- /dev/null
+++ b/i686-linux-gnu-4.7/usr/include/x86_64-linux-gnu/bits/stdio.h
@@ -0,0 +1,195 @@
+/* Optimizing macros and inline functions for stdio functions.
+ Copyright (C) 1998-2018 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
+ . */
+
+#ifndef _BITS_STDIO_H
+#define _BITS_STDIO_H 1
+
+#ifndef _STDIO_H
+# error "Never include directly; use instead."
+#endif
+
+#ifndef __extern_inline
+# define __STDIO_INLINE inline
+#else
+# define __STDIO_INLINE __extern_inline
+#endif
+
+
+#ifdef __USE_EXTERN_INLINES
+/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different
+ inline. */
+# if !(__USE_FORTIFY_LEVEL > 0 && defined __fortify_function)
+/* Write formatted output to stdout from argument list ARG. */
+__STDIO_INLINE int
+vprintf (const char *__restrict __fmt, __gnuc_va_list __arg)
+{
+ return vfprintf (stdout, __fmt, __arg);
+}
+# endif
+
+/* Read a character from stdin. */
+__STDIO_INLINE int
+getchar (void)
+{
+ return getc (stdin);
+}
+
+
+# ifdef __USE_MISC
+/* Faster version when locking is not necessary. */
+__STDIO_INLINE int
+fgetc_unlocked (FILE *__fp)
+{
+ return __getc_unlocked_body (__fp);
+}
+# endif /* misc */
+
+
+# ifdef __USE_POSIX
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+getc_unlocked (FILE *__fp)
+{
+ return __getc_unlocked_body (__fp);
+}
+
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+getchar_unlocked (void)
+{
+ return __getc_unlocked_body (stdin);
+}
+# endif /* POSIX */
+
+
+/* Write a character to stdout. */
+__STDIO_INLINE int
+putchar (int __c)
+{
+ return putc (__c, stdout);
+}
+
+
+# ifdef __USE_MISC
+/* Faster version when locking is not necessary. */
+__STDIO_INLINE int
+fputc_unlocked (int __c, FILE *__stream)
+{
+ return __putc_unlocked_body (__c, __stream);
+}
+# endif /* misc */
+
+
+# ifdef __USE_POSIX
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+putc_unlocked (int __c, FILE *__stream)
+{
+ return __putc_unlocked_body (__c, __stream);
+}
+
+/* This is defined in POSIX.1:1996. */
+__STDIO_INLINE int
+putchar_unlocked (int __c)
+{
+ return __putc_unlocked_body (__c, stdout);
+}
+# endif /* POSIX */
+
+
+# ifdef __USE_GNU
+/* Like `getdelim', but reads up to a newline. */
+__STDIO_INLINE __ssize_t
+getline (char **__lineptr, size_t *__n, FILE *__stream)
+{
+ return __getdelim (__lineptr, __n, '\n', __stream);
+}
+# endif /* GNU */
+
+
+# ifdef __USE_MISC
+/* Faster versions when locking is not required. */
+__STDIO_INLINE int
+__NTH (feof_unlocked (FILE *__stream))
+{
+ return __feof_unlocked_body (__stream);
+}
+
+/* Faster versions when locking is not required. */
+__STDIO_INLINE int
+__NTH (ferror_unlocked (FILE *__stream))
+{
+ return __ferror_unlocked_body (__stream);
+}
+# endif /* misc */
+
+#endif /* Use extern inlines. */
+
+
+#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__ \
+ && !defined __cplusplus
+/* Perform some simple optimizations. */
+# define fread_unlocked(ptr, size, n, stream) \
+ (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
+ && (size_t) (size) * (size_t) (n) <= 8 \
+ && (size_t) (size) != 0) \
+ ? ({ char *__ptr = (char *) (ptr); \
+ FILE *__stream = (stream); \
+ size_t __cnt; \
+ for (__cnt = (size_t) (size) * (size_t) (n); \
+ __cnt > 0; --__cnt) \
+ { \
+ int __c = getc_unlocked (__stream); \
+ if (__c == EOF) \
+ break; \
+ *__ptr++ = __c; \
+ } \
+ ((size_t) (size) * (size_t) (n) - __cnt) \
+ / (size_t) (size); }) \
+ : (((__builtin_constant_p (size) && (size_t) (size) == 0) \
+ || (__builtin_constant_p (n) && (size_t) (n) == 0)) \
+ /* Evaluate all parameters once. */ \
+ ? ((void) (ptr), (void) (stream), (void) (size), \
+ (void) (n), (size_t) 0) \
+ : fread_unlocked (ptr, size, n, stream))))
+
+# define fwrite_unlocked(ptr, size, n, stream) \
+ (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n) \
+ && (size_t) (size) * (size_t) (n) <= 8 \
+ && (size_t) (size) != 0) \
+ ? ({ const char *__ptr = (const char *) (ptr); \
+ FILE *__stream = (stream); \
+ size_t __cnt; \
+ for (__cnt = (size_t) (size) * (size_t) (n); \
+ __cnt > 0; --__cnt) \
+ if (putc_unlocked (*__ptr++, __stream) == EOF) \
+ break; \
+ ((size_t) (size) * (size_t) (n) - __cnt) \
+ / (size_t) (size); }) \
+ : (((__builtin_constant_p (size) && (size_t) (size) == 0) \
+ || (__builtin_constant_p (n) && (size_t) (n) == 0)) \
+ /* Evaluate all parameters once. */ \
+ ? ((void) (ptr), (void) (stream), (void) (size), \
+ (void) (n), (size_t) 0) \
+ : fwrite_unlocked (ptr, size, n, stream))))
+#endif
+
+/* Define helper macro. */
+#undef __STDIO_INLINE
+
+#endif /* bits/stdio.h. */