[MacPorts] #44001: libxc update to 2.2.0 (current stable version)

[MacPorts]

#44001: libxc update to 2.2.0 (current stable version)
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  Reporter:  p.bro@…  |      Owner:  dstrubbe@…
      Type:  update   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:  haspatch
      Port:  libxc    |
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Comment (by dstrubbe@…):

 Updated to version 2.1.0 in r125410. I had to patch ABINIT to make it able
 to use even this version.

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Ticket URL: <https://trac.macports.org/ticket/44001#comment:3>
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