[Bioperl-l] XML::Writer test seg fault

[Robin Berjon]

Chester Langin wrote:
> Everything installed ok except for XML::Writer,
> which passed the first 39 tests and then said,
> "Attempt to free unreferenced scalar at test.pl
> line 513."  Then, it said that make seg faulted.
> 
> Line 513:  $writer->emptyTag('foo:foo');

If you look at XML::Writer's source, you'll see that it uses some slightly 
devious techniques to define which sub will be called depending on the SAFEty 
setting. The error you get is a problem typically seen in modperl that occurs 
when a sub is contained within another, though I forget the specifics (IIRC it's 
closure/refcount related).

> Any ideas to fix or work around this?

XML::Writer is rather proven software, but I don't think David is still 
maintaining it, having apparently switched mostly to the Java side of things. 
There hasn't been a release since early 2000. Has anyone here considered 
switching to SAX instead (eg using XML::Generator::PerlData)?

-- 
Robin Berjon <robin.berjon@expway.fr>
Research Engineer, Expway        http://expway.fr/
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