[patch, fortran]PR25829 Add support for F2003 I/O features

[FX Coudert]

> I would like this to go into 4.4 branch for several reasons.
>
> 1. So we don't lose it and it is in sync with trunk.
> 2. It will allow others to see and augment this with any missing  
> checks and features.
> 3. It will allow others to exercise and test it.

I'd like to know a few things before making my mind: for example, in  
its current form, does it introduce new wrong-code or rejects-valid  
issues? (I suppose it does, for example with ROUND or SIZE, but I'm  
not sure.) If yes, then maybe getting it in a branch while it matures  
might be indicated.

Another unrelated question is: does it break ABI compatibility?

> 4. Get the configury magic figured out for using aio.h for systems  
> that support it. (need help from others on this)

I'm willing to help here.

Real life has me terribly busy for the weeks to come, but I'll try to  
find some time (train or plane) to look into this, even if someone  
already has reviewed it.

Thanks,
FX

-- 
François-Xavier Coudert
http://www.homepages.ucl.ac.uk/~uccafco/