#define sh_pread pread64
#define sh_pwrite pwrite64
#define sh_stat stat64
-#define sh_stat_t stat64
+#define sh_fstat fstat64
+typedef struct stat64 sh_stat_t;
#else /* !CONFIG_LFS */
#define sh_pread pread
#define sh_pwrite pwrite
#define sh_stat stat
-#define sh_stat_t stat
+#define sh_fstat fstat
+typedef struct stat sh_stat_t;
#endif /* !CONFIG_LFS */
+#if defined(_POSIX_SYNCHRONIZED_IO) && (_POSIX_SYNCHRONIZED_IO > 0)
+#define sh_fdatasync fdatasync
+#else
+#define sh_fdatasync fsync
+#endif
+
#define HAVE_PREAD
static inline sh_off_t