[Patch, fortran] PR20896 - dummy procedures interfaces

[Paul Thomas]

Sorry, I miss-wrote this:
>>   
> This is the way that the attached version of the patch does it.  In 
> practical terms, this means that an external procedure without an 
> explicit interface, within another interface, can only unambiguously 
> be a function.  Thus EXTERNAL P; REAL P is ambiguous with functions, 
> subroutines and all other EXTERNAL symbols.  On the other hand, 
> EXTERNAL P is ambiguous with any procedure.
It should be:

Thus EXTERNAL P; REAL P is ambiguous with functions and all other 
EXTERNAL symbols. On the other hand, EXTERNAL P is ambiguous with any 
procedure.

Paul