[MacPorts] #67343: libxkbcommon-x11 @1.5.0 does not build on PPC Tiger, Mac OS X 10.4.11, because of fatal error: spawn.h: No such file or directory

[MacPorts]

#67343: libxkbcommon-x11 @1.5.0 does not build on PPC Tiger, Mac OS X 10.4.11,
because of fatal error: spawn.h: No such file or directory
-------------------------------+-----------------------
  Reporter:  ballapete         |      Owner:  (none)
      Type:  defect            |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.8.1
Resolution:                    |   Keywords:  tiger ppc
      Port:  libxkbcommon-x11  |
-------------------------------+-----------------------

Comment (by ballapete):

 The file has `Copyright © 2014 Ran Benita <ran234 at gmail.com>` and did not
 change since released in version 1.0.

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Ticket URL: <https://trac.macports.org/ticket/67343#comment:4>
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