Namelist IOSTAT behaviour

[Tobias Schlüter]

Paul Thomas wrote:
>>looking at a problem with "USE, only : a => z, b => z" where
>>the "b => z" causes an ICE because the "a => z" removes z from
>>the symbols in the module.  
> 
> 
> I think that I can fix that but is it legal? It's a bit bizarre to tie two
> host symbols to one module variable, isn't it?  Is there an associated PR?

It's allowed.  Those module renames really do weird things, IIRC one can also
rename generic interfaces.

> In a similar vein, PR19561 seems to have done the opposite and fixed itself
> spontaneously. Is somebody owning up or is this due to Tobi's and my
> rummaging around with dereferencing? Either way, I propose to write a test
> case so that it is nailed to the floor.

The only thing that might have had an effect on this is my bugfix followup to
the f2c patch, also Zdenek did some magic for derived types some time ago, it
might have been his patch.  I'll try to get certainty tomorrow, and extract a
testcase.

- Tobi