[Patch, fortran] PR17741 - ICE in gfc_free_namespace, at fortran/symbol.c:2208

[Paul Thomas]

Paul,

>Fix the bug properly then.
>  
>
Therein lies the rub - too many bugs and too few of us.

I grant you all that you have said, with respect to other users of 
gfc_free_namespace, but would point out that hitting an eof is a special 
and unusual situation.  That being the case, would it be acceptable to 
you that unexpected_eof checks for the namespace having no references 
before calling gfc_done_2 (which is the unique client of 
gfc_symbol_done_2)?  That is to say, we scrub whatever is there, or not, 
as cleanly as possible because there is no more input and the requisite 
error messages have been emitted anyway.

As for the message that nobody likes; that can be dispensed with 
completely because it is redundant, as several of you have pointed out.

Paul