[MacPorts] #57312: gcl @2.6.12: ld: library not found for -lgcc_s.10.4 (was: gcl @2.6.12 build fails on mojave)

[MacPorts]

#57312: gcl @2.6.12: ld: library not found for -lgcc_s.10.4
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  Reporter:  rlhamil  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.5.4
Resolution:           |   Keywords:  mojave
      Port:  gcl      |
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Comment (by ryandesign):

 Because of using an old deployment target. We should patch it to not
 override MacPorts' choice of deployment target.

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Ticket URL: <https://trac.macports.org/ticket/57312#comment:2>
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