[MacPorts] #69795: t1lib 5.1.2_3: has implicit int which is not supported under Xcode 15

[MacPorts]

#69795: t1lib 5.1.2_3: has implicit int which is not supported under Xcode 15
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  Reporter:  rbeyer  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.9.3
Resolution:          |   Keywords:
      Port:  t1lib   |
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Comment (by jmroot):

 Red Hat has some patches that should help:
 https://src.fedoraproject.org/rpms/t1lib/tree/rawhide

 We should also make sure it uses an appropriately old standard like
 `-std=gnu89` since this issue is on top of the fact that the code uses K&R
 style declarations, which are no longer allowed as of C23.

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Ticket URL: <https://trac.macports.org/ticket/69795#comment:1>
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