[MacPorts] #67969: abseil @20230802.0 needs a fix for macOS < 10.13: error: 'clockid_t' has not been declared

[MacPorts]

#67969: abseil @20230802.0 needs a fix for macOS < 10.13: error: 'clockid_t' has
not been declared
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.1
Resolution:                |   Keywords:
      Port:  abseil        |
---------------------------+--------------------

Comment (by ryandesign):

 The abseil port already includes the legacysupport portgroup for Darwin 14
 and earlier for `MAP_ANONYMOUS`. I assumed this when the port was updated,
 this would be addressed by increasing
 `legacysupport.newest_darwin_requires_legacy` to `15` to cover the stuff
 related to `clock_gettime`. Does that not work?

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Ticket URL: <https://trac.macports.org/ticket/67969#comment:2>
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