[Patch] Don't provide lstat gfortran intrinsic if target doesn't support lstat.

[Paul Thomas]

Danny,

>
>Building libgfortan as dll would also be very nice for people who don't
>use MS compiler :).
>  
>
That would be marvellous!

>However. there is one obstacle preventing libgfortan.dll: an undefined
>reference to the lstat function in intrinsics/stat.c. 
>  
>
Paul Brooks warned us... http://gcc.gnu.org/ml/fortran/2006-07/msg00402.html

>This patch tests for a target lstat() function and avoids creating a
>gfortran intrinsic if it does't exist. OK for mainline?
>  
>
OK

Thanks

Paul

PS Where would that leave us wrt to writing .dlls in gfortran?