* check.c (gfc_check_system_clock): New function.
	* intrinsic.c (add_sym_3s): New function.
	(add_subroutines): Use it.
	* intrinsic.h (gfc_check_system_clock, gfc_resolve_system_clock):
	Add prototypes.
	* iresolve.c (gfc_resolve_system_clock): New function.
libgfortran/
	* intrinsics/system_clock: New file.
	* Makefile.am: Add intrinsics/system_clock.c.
	* Makefile.in: Regenerate.

From-SVN: r82131