[MacPorts] #60400: mysql56: error: #error "Unsupported platform"

[MacPorts]

#60400: mysql56: error: #error "Unsupported platform"
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  Reporter:  bryancn  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:           |   Keywords:  leopard powerpc
      Port:  mysql56  |
----------------------+-----------------------------

Comment (by chrstphrchvz):

 The PowerPC build problem had been reported at
 https://bugs.mysql.com/bug.php?id=78687 a few years ago (they were most
 recently awaiting someone to try again with the latest releases; I left a
 comment that the error is still observed for 5.6.47, but I don't seem to
 be able to reopen the ticket). Note that as of 2018-10-19, MySQL considers
 version 5.6 to be unsupported on macOS.

 I would be curious if trying a more recent compiler helps.

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Ticket URL: <https://trac.macports.org/ticket/60400#comment:4>
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