[MacPorts] #48964: port:openssl build on linux

[MacPorts]

#48964: port:openssl build on linux
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  Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.3
Resolution:               |   Keywords:  haspatch
      Port:  openssl      |
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Comment (by raimue@…):

 I don't like how this affects readability just for the sake of supporting
 Linux, which is unsupported. This should use a `platform linux {}` block
 instead, applying the necessary changes with `-append` and `-delete`.

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Ticket URL: <https://trac.macports.org/ticket/48964#comment:1>
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