[MacPorts] #62654: xorg-server-legacy @1.20.10_1 does not build on PPC Tiger, Mac OS X 10.4.11, because of missing spawn.h

[MacPorts]

#62654: xorg-server-legacy @1.20.10_1 does not build on PPC Tiger, Mac OS X
10.4.11, because of missing spawn.h
---------------------------------+--------------------
  Reporter:  ballapete           |      Owner:  (none)
      Type:  defect              |     Status:  new
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:  2.6.4
Resolution:                      |   Keywords:  tiger
      Port:  xorg-server-legacy  |
---------------------------------+--------------------

Comment (by ballapete):

 It already has:

 {{{
       6 PortGroup       legacysupport 1.1
 }}}

 Is this a bit too much? Is it faulty to use
 `-isystem/opt/local/include/LegacySupport`? It's presumingly not enough,
 not correct, `bundle_trampoline.c` should include `<sys/spawn.h>`… Is
 Legacy Support just missing the C header file that includes
 `<sys/spawn.h>`?

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Ticket URL: <https://trac.macports.org/ticket/62654#comment:1>
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