[MacPorts] #67248: grep @3.10 is broken on some versions of Tiger (?PPC ONLY): error: expected '=', ',', '; ', 'asm' or '__attribute__' before 'mcontext64_t'

[MacPorts]

#67248: grep @3.10 is broken on some versions of Tiger (?PPC ONLY): 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          |
---------------------------+-------------------------

Comment (by Cebtenzzre):

 ballapete, see my earlier comment. From what I can tell it's not a missing
 header, as the necessary types should be provided by `sys/_types.h`. It's
 caused by e.g. gnulib #undef'ing a feature test macro (_POSIX_C_SOURCE)
 and fragile preprocessor conditionals in the system headers.

-- 
Ticket URL: <https://trac.macports.org/ticket/67248#comment:16>
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