[MacPorts] #57551: cmake @3.12.4 does not build on Mac OS X 10.4.11, Tiger, because it does not knaw hat unsetenv() does no exist here

[MacPorts]

#57551: cmake @3.12.4 does not build on Mac OS X 10.4.11, Tiger, because it does
not knaw hat unsetenv() does no exist here
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  closed
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.4
Resolution:  duplicate  |   Keywords:  tiger
      Port:  cmake      |
------------------------+--------------------

Comment (by michaelld):

 It seems like the issue here really is the same as that from #55415 ...
 and the way we generally handle dupolicates is to keep the prior one and
 close any more recent.

 Thus, I'm going to upgrade the other ticket info && let's please take all
 future discussion there.

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Ticket URL: <https://trac.macports.org/ticket/57551#comment:7>
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