[patch,fortran] Fix corner case where consecutive calls to date_and_time can return times out of sequence (PR30015)

[FX Coudert]

> 2006-12-09  Tobias Burnus  <burnus@net-b.de>
>
> 	PR libfortran/30015
> 	* intrinsics/date_and_time.c (date_and_time): Fix case where time
> 	  can go backwards.
> 	* configure.ac: Remove AC_TRY_RUN test for timezone in
> 	  gettimeofday.
> 	* acinclude.m4: Ditto.
> 	* configure: Regenerate.
> 	* config.h.in

Mine to review :)  I'll do it before or during the week-end.

FX

PS: for your future patches, can you submit them without the  
generated files?