[MacPorts] #65582: util-linux @2.38_1 does not build on PPC Tiger, Mac OS X 10.4.11, because of "Undefined symbols: "_timersub", referenced from: _print_stats in hardlink-hardlink.o"

[MacPorts]

#65582: util-linux @2.38_1 does not build on PPC Tiger, Mac OS X 10.4.11, because
of "Undefined symbols:   "_timersub", referenced from:   _print_stats in
hardlink-hardlink.o"
-------------------------+--------------------
  Reporter:  ballapete   |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:  tiger
      Port:  util-linux  |
-------------------------+--------------------

Comment (by kencu):

 this issue with Tiger's headers not having {{{DARWIN_C_SOURCE}}} is a
 major headache when dealing with Tiger.

 All systems from 10.5 on do have that, and software expects it.

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Ticket URL: <https://trac.macports.org/ticket/65582#comment:12>
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