[MacPorts] #57148: glib2, glib2-devel: update to current version 2.58.1

[MacPorts]

#57148: glib2, glib2-devel: update to current version 2.58.1
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  Reporter:  dbevans            |      Owner:  ryandesign
      Type:  update             |     Status:  assigned
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:
Resolution:                     |   Keywords:
      Port:  glib2 glib2-devel  |
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Comment (by ryandesign):

 I have not updated glib2 to 2.58.x yet because it did not build on Tiger.
 I haven't investigated that problem yet or reported it to the developers.

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Ticket URL: <https://trac.macports.org/ticket/57148#comment:2>
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