XML::LibXSLT ignoring namespace on some Win32 machines

[choroba]

I was always getting scarce FAIL reports from CPAN testers for a module I inherited (Treex::PML) at work. I had not been able to reproduce the problem, so I was ignoring them. Recently, the error started to occur at two of our testing machines with MSWin 7 64-bit or XP 32-bit. The problem can be easily reduced to the following:

#!/usr/bin/perl
use warnings;
use strict;

use Test::More tests => 1;
use XML::LibXML;
use XML::LibXSLT;

my $source = XML::LibXML->load_xml(string => <<'__END_XML__');
<?xml version="1.0" encoding="UTF-8"?>
<r xmlns="http://1.net/ns0"/>
__END_XML__

my $style_doc = XML::LibXML->load_xml(string => <<'__END_XML__');
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns="http://1.net/ns1"
>
<xsl:template match="*">
<xsl:element name="{name()}">
</xsl:element>
</xsl:template>
</xsl:stylesheet>
__END_XML__

my $style = XML::LibXSLT->new->parse_stylesheet($style_doc);
is($style->transform($source)->toString, <<'__END_XML__', 'Namespace c
+hanged');
<?xml version="1.0"?>
<r xmlns="http://1.net/ns1"/>
__END_XML__

In other words, the transformation should only change the namespace of the element. On the affected machines, though, the namespace is changed to the empty one.

The affected 64 bit machine has the following configuration:

libxml2	20900
libxslt	10127
XML::LibXML	2.0014
XML::LibXSLT	1.80
perl	strawberry 5.14.3 for MSWin32-x86-multithread

It seems as a bug in XML::LibXSLT or its underlying C libraries, but their tests are not failing. Can anyone help me understand the cause of the bug?

Update: Noticed the second failing machine.

[Anonymous Monk]

http://search.cpan.org/dist/XML-LibXSLT/Changes -> Die when libxslt is 1.1.27. due to this bug Bug 684564 – Regression: Default namespace not correctly used

Naturally http://strawberryperl.com/release-notes/5.16.2.1-32bit.html uses libxslt-1.1.27 and I use 1.1.28

Suckers :)

[choroba]

Thank you thousand times! That's exactly the problem. The next step for me is to find out how to use the newer library with strawberry :-)

[Anonymous Monk]

You just have to install it, easy if you've got msys installed (sh configure ), a pita if you don't -- citrusperl provides a msys download

[choroba]

Bug reported: rt://83368. The reply came surprisingly fast, containing the fixed binaries as well.

[Anonymous Monk]

Works for me with citrusperl (same compiler as srawberry) :) but I don't know about XSL or namespaces

XML::LibXML                                       -  2.0014
XML::LibXSLT                                      -    1.79