[MacPorts] #55385: ocaml: fails to build on 10.6 and lower

[MacPorts]

#55385: ocaml: fails to build on 10.6 and lower
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  Reporter:  mojca   |      Owner:  pmetzger
      Type:  defect  |     Status:  reopened
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  ocaml   |
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Comment (by kencu):

 10.5 Intel most likely works, so we'll make sure that is included in the
 test.

 The 10.7 buildbot seems to be broken or offline -- I'll test it on my
 local VM.

 10.8+ build OK with the default compiler?

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Ticket URL: <https://trac.macports.org/ticket/55385#comment:38>
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