[Patch, fortran] PR32103 - Module with equivalence draws "unsatisfied reference"

[Toon Moene]

Paul Richard Thomas wrote:

> This problem came about because module equivelance groups with one or
> more unused members were cleared.  This being so, the remaining
> members referenced variables in the module, rather than members of a
> union representing the equivalence.  Even if that were not the case,
> the missing, unused members carry offset information that is essential
> to obtain the correct alignment.
> 
> The fix detects unused equivalence members, gives them a symtree with
> a "unique name" that hides the symbol.  Whilst completely unused
> equivalence groups are now cleared, the hidden symbols remain.  I was
> unable to find a convenient, siple way of clearing the hidden symbols
> and so decided to ignore them, since they get cleared up at the end of
> compilation.

Do you (Paul) or we (the Fortran group) think this patch is worthwhile 
to port back to the 4.2 branch, in spite of the fact that it isn't a 
regression (it has always been wrong) ?

Kind regards,

-- 
Toon Moene - e-mail: toon@moene.indiv.nluug.nl - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
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