[MacPorts] #54004: icu @58.2: fix CVE-2017-7867 and CVE-2017-7868

[MacPorts]

#54004: icu @58.2: fix CVE-2017-7867 and CVE-2017-7868
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  Reporter:  l2dy    |      Owner:  ryandesign
      Type:  defect  |     Status:  accepted
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  icu     |
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Comment (by ryandesign):

 Yikes:

 http://site.icu-project.org/download/59:

 > There are major changes for ICU4C that require changes in projects using
 ICU. See below for details.

 > * ICU4C now uses and requires C++11 language features and libraries.
 > * ICU4C has also moved to char16_t as the type for UTF-16. This is a
 breaking change. Please see the detail section below.

 Seems like updating to this version will break a ton of stuff on non-C++11
 platforms (OS X <= 10.8) so I don't think we should update yet. I can
 patch to address the CVEs though.

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Ticket URL: <https://trac.macports.org/ticket/54004#comment:2>
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