+int fgetc_unlocked(FILE *);
+int fputc_unlocked(int, FILE *);
+int fflush_unlocked(FILE *);
+size_t fread_unlocked(void *, size_t, size_t, FILE *);
+size_t fwrite_unlocked(const void *, size_t, size_t, FILE *);
+void clearerr_unlocked(FILE *);
+int feof_unlocked(FILE *);
+int ferror_unlocked(FILE *);
+int fileno_unlocked(FILE *);
+int getw(FILE *);
+int putw(int, FILE *);
+char *fgetln(FILE *, size_t *);
+int asprintf(char **, const char *, ...);
+int vasprintf(char **, const char *, __isoc_va_list);
+#endif
+
+#ifdef _GNU_SOURCE
+char *fgets_unlocked(char *, int, FILE *);
+int fputs_unlocked(const char *, FILE *);
+
+typedef ssize_t (cookie_read_function_t)(void *, char *, size_t);
+typedef ssize_t (cookie_write_function_t)(void *, const char *, size_t);
+typedef int (cookie_seek_function_t)(void *, off_t *, int);
+typedef int (cookie_close_function_t)(void *);
+
+typedef struct _IO_cookie_io_functions_t {
+ cookie_read_function_t *read;
+ cookie_write_function_t *write;
+ cookie_seek_function_t *seek;
+ cookie_close_function_t *close;
+} cookie_io_functions_t;
+
+FILE *fopencookie(void *, const char *, cookie_io_functions_t);
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
+#define tmpfile64 tmpfile
+#define fopen64 fopen
+#define freopen64 freopen
+#define fseeko64 fseeko
+#define ftello64 ftello
+#define fgetpos64 fgetpos
+#define fsetpos64 fsetpos
+#define fpos64_t fpos_t
+#define off64_t off_t