[MacPorts] #38388: libxml2: update to 2.9.0

[MacPorts]

#38388: libxml2: update to 2.9.0
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  Reporter:  ryandesign@…        |      Owner:  cedric.luthi@…
      Type:  update              |     Status:  new
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:
Resolution:                      |   Keywords:
      Port:  libxml2 py-libxml2  |
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Comment (by cal@…):

 libxml 2.9.0 doesn't build on OS X, see
 https://bugzilla.gnome.org/show_bug.cgi?id=684024 for the bug report and a
 patch.

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Ticket URL: <https://trac.macports.org/ticket/38388#comment:5>
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