[MacPorts] #59672: Set SOURCE_DATE_EPOCH

[MacPorts]

#59672: Set SOURCE_DATE_EPOCH
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 Reporter:  ryandesign   |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:
 Keywords:               |       Port:
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 MacPorts base could set the [https://reproducible-builds.org/docs/source-
 date-epoch/ SOURCE_DATE_EPOCH environment variable].

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Ticket URL: <https://trac.macports.org/ticket/59672>
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