[MPI3 Fortran] Deprecate mpif.h?

[N.M. Maclaren]

On Mar 4 2010, Jeff Squyres wrote:
>
>>     Is the intent to allow a single program to use modules MPI and
>>     module MPI3 in separately compiled parts?
>> 
>> If the answer is "yes", I don't see a problem.
>
>In my mind, at least, the answer was yes.  
>
> To be clear, I was thinking that we would not allow using both mpif.h/use 
> mpi and use mpi3 in the same subroutine/function.

That's good.

There will need to be some restrictions, so as not to handicap implementors
too badly, but I doubt they would be onerous or hard to specify.  Indeed,
they might be automatic from the type changes!

Regards,
Nick Maclaren.