[MacPorts] #57679: libodfgen: Update to 0.1.7

[MacPorts]

#57679: libodfgen: Update to 0.1.7
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  RJVB
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  haspatch
      Port:  libodfgen   |
-------------------------+----------------------

Comment (by RJVB):

 Yes, but there's no need for the PortGroup on systems that come with
 libc++ .

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Ticket URL: <https://trac.macports.org/ticket/57679#comment:2>
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