Update.

Update.

	* elf/Versions [ld] (GLIBC_2.2): Export _dl_clktck and _dl_pagesize.
	* elf/dl-load.c: Define _dl_clktck.
	* elf/elf.h: Define AT_CLKTCK.
	* include/time.h: Declare __getclktck.
	* misc/Makefile (routines): Add getclktck.
	* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): Handle AT_CLKTCK.
	(_dl_show_auxv): Show AT_CLKTCK value.
	* sysdeps/generic/getclktck.c: New file.
	* sysdeps/unix/sysv/linux/getclktck.c: New file.
	* sysdeps/unix/sysv/linux/alpha/getclktck.c: New file.
	* sysdeps/unix/sysv/linux/ia64/getclktck.c: New file.
	* sysdeps/posix/sysconf.c: Use __getclktck to handle _SC_CLK_TCK.
	* sysdeps/unix/sysv/linux/getpagesize.c: New file.
	* sysdeps/unix/sysv/linux/bits/time.h: Use __sysconf to for CLK_TCK.
	* sysdeps/unix/sysv/linux/alpha/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/time.h: Likewise.