[MacPorts] #67248: grep/coreutils: tiger: error: expected '=', ',', '; ', 'asm' or '__attribute__' before 'mcontext64_t'

[MacPorts]

#67248: grep/coreutils: tiger: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'mcontext64_t'
-----------------------------+-------------------------
  Reporter:  barracuda156    |      Owner:  Schamschula
      Type:  defect          |     Status:  assigned
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.8.1
Resolution:                  |   Keywords:  tiger
      Port:  grep coreutils  |
-----------------------------+-------------------------

Comment (by ballapete):

 Same error with `coreutils @9.4`.

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Ticket URL: <https://trac.macports.org/ticket/67248#comment:20>
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