[MacPorts] #56099: libgpg-error @1.28 does not build on PPC Tiger, Mac OS X 10.4.11, because it cannot learn that unseenv() returns void

[MacPorts]

#56099: libgpg-error @1.28 does not build on PPC Tiger, Mac OS X 10.4.11, because
it cannot learn that unseenv() returns void
---------------------------+-------------------------
  Reporter:  ballapete     |      Owner:  Schamschula
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.4.2
Resolution:                |   Keywords:  tiger
      Port:  libgpg-error  |
---------------------------+-------------------------

Comment (by ballapete):

 I works to add to `Portfile` these lines as Ken Cunningham suggested in
 #55145:

 {{{
 # fix build on Tiger see https://trac.macports.org/ticket/55145
 platform darwin 8 {
     configure.cppflags-append -D__DARWIN_UNIX03
 }
 }}}

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Ticket URL: <https://trac.macports.org/ticket/56099#comment:3>
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