[MacPorts] #67244: svt-av1 fails on Tiger: error: '_SC_NPROCESSORS_ONLN' undeclared (first use in this function)

[MacPorts]

#67244: svt-av1 fails on Tiger: error: '_SC_NPROCESSORS_ONLN' undeclared (first use
in this function)
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.8.1
Resolution:                |   Keywords:  tiger
      Port:  svt-av1       |
---------------------------+--------------------

Comment (by barracuda156):

 Replying to [comment:1 ryandesign]:
 > legacysupport should help with this (https://github.com/macports
 /macports-legacy-support/pull/8)

 The port already uses it though:
 {{{
 PortGroup               legacysupport 1.1

 # _posix_memalign
 legacysupport.newest_darwin_requires_legacy 9
 }}}

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Ticket URL: <https://trac.macports.org/ticket/67244#comment:2>
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