re PR fortran/34533 (DTIME returns total process time and not since last invocation)

re PR fortran/34533 (DTIME returns total process time and not since last invocation)

gcc/fortran:
2007-12-25  Daniel Franke  <franke.daniel@gmail.com>

	PR fortran/34533
	* intrinsic.h (gfc_check_etime): Renamed to ...
	(gfc_check_dtime_etime): ... this.
	(gfc_check_etime_sub): Renamed to ...
	(gfc_check_dtime_etime_sub): ... this.
	(gfc_resolve_dtime_sub): New prototype.
	* check.c (gfc_check_etime): Renamed to ...
	(gfc_check_dtime_etime): ... this.
	(gfc_check_etime_sub): Renamed to ...
	(gfc_check_dtime_etime_sub): ... this.
	* iresolve.c (gfc_resolve_dtime_sub): New implementation.
	* intrinsic.c (add_functions): Removed alias from ETIME to DTIME,
	added stand-alone intrinsic DTIME.
	(add_subroutines): Adjusted check and resolve function names for
	DTIME and ETIME.
	* trans-intrinsic.c (gfc_conv_intrinsic_function): Added DTIME
	to known functions in switch.
	* intrinsic.texi (DTIME): Added paragraph about thread-safety,
	fixed return value section.
	(CPU_TIME): Clarified intent and added implementation notes.

libgfortran:
2007-12-25  Daniel Franke  <franke.daniel@gmail.com>

	PR fortran/34533
	* intrinsics/cpu_time.c: Moved code commonly usable for CPU_TIME,
	DTIME and ETIME to ...
	* intrinsics/time_1.h: ... here.
	* intrinsics/dtime.c: New file.
	* intrinsics/etime.c: Newly implemented using the common
	time-aquisition function from time_1.h.
	* gfortran.map (_gfortran_dtime, _gfortran_dtime_sub): New.
	* Makefile.am: Added new file.
	* Makefile.in: Regenerated.
	* configure: Regenerated.

From-SVN: r131168