[MacPorts] #69138: rust @1.75.0 : Does not build on macOS 10.11.6 - missing _getentropy and _clock_gettime

[MacPorts]

#69138: rust @1.75.0 : Does not build on macOS 10.11.6 - missing  _getentropy and
_clock_gettime
------------------------+---------------------------------
  Reporter:  snowflake  |      Owner:  MarcusCalhoun-Lopez
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.8.99
Resolution:             |   Keywords:
      Port:  rust       |
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Comment (by mqudsi):

 FYI this was caused by upstream deprecating support for anything before
 macOS (née OS X) 10.12.

 This commit is responsible for this particular issue: https://github.com
 /rust-lang/rust/commit/090e9de5708388a21d66adbec91c871a48ac355e

 A compatibility shim for `getentropy(3)`/`_getentropy()` would be the
 ideal way to go, but a patch reverting that commit would also work.

-- 
Ticket URL: <https://trac.macports.org/ticket/69138#comment:4>
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