[MacPorts] #57535: opensc @0.19.0_1 build fails with Xcode 10

[MacPorts]

#57535: opensc @0.19.0_1 build fails with Xcode 10
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  Reporter:  tgyurci  |      Owner:  lbschenkel
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  opensc   |
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Comment (by bwesterb):

 Issue has been fixed upstream in
 https://github.com/OpenSC/OpenSC/commit/c3bef7d5278c695f3778a629a720bdd8c3c42ce5

 I checked and it fixed it for me.

 This commit hasn't been included in a release yet.  Perhaps add it as a
 patch for now?

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Ticket URL: <https://trac.macports.org/ticket/57535#comment:2>
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