[MacPorts] #64280: onetbb @2021.5.0: error: declaration does not declare anything

[MacPorts]

#64280: onetbb @2021.5.0: error: declaration does not declare anything
-------------------------+------------------------
  Reporter:  ryandesign  |      Owner:  mohd-akram
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:  mavericks
      Port:  onetbb      |
-------------------------+------------------------

Comment (by barracuda156):

 `-Werror` can be turned off with `-DTBB_STRICT=OFF`.

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Ticket URL: <https://trac.macports.org/ticket/64280#comment:1>
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