[gfortran,patch] Add ISO_FORTRAN_ENV module

[Steve Kargl]

On Sat, Nov 18, 2006 at 02:59:41PM +0100, FX Coudert wrote:
> Hi all,
> 
> Attached is the last version of my ISO_FORTRAN_ENV patch, now that  
> the intrinsic/non-intrinsic modules patch has been commited. I  
> modified the code to correct the glitches detected by Tobias Burnus.
> 
> Bootstrapped (on top of mainline rev. 118930, because later ones fail  
> due to PR 29879) and regtested on i686-linux. OK for mainline?
> 

The patch is ok if you address Brooks and Tobias comments.
One other item.  Do you need to use uppercase names for
the symbols (e.g., "IOSTAT_END" instead of "iostat_end")?  
I know that gfortran translates lowercase to upper as it
parses a file.  I tried tracing through the code to see
when/if uppercase is needed.

-- 
Steve