Update.

Update.

	* sysdeps/unix/sysv/linux/bits/statvfs.h: Change type of f_fsid field
	to unsigned long.  Add __f_unused.  Define _STATVFSBUF_F_UNUSED.
	* sysdeps/unix/sysv/linux/internal_statvfs.c: Adjust initialization of
	f_fsid field after change in struct statvfs.
	* sysdeps/unix/sysv/linux/alpha/bits/statvfs.h: New file.
	* sysdeps/unix/sysv/linux/ia64/bits/statvfs.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/statvfs.h: New file.

	* conform/data/sys/stat.h-data: Remove isfdtype.  Use
	optional-macro.