[MacPorts] #55242: gnupg2 @2.2.1 does not build on PPC Tiger, Mac OS X 10.4.11, because it assumes that unsetenv() returns an int

[MacPorts]

#55242: gnupg2 @2.2.1 does not build on PPC Tiger, Mac OS X 10.4.11, because it
assumes that unsetenv() returns an int
------------------------+-------------------
  Reporter:  ballapete  |      Owner:
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.2
Resolution:             |   Keywords:  tiger
      Port:  gnupg2     |
------------------------+-------------------

Comment (by Ionic):

 Replying to [comment:2 kencu]:
 > there is a #define that usually gives you the new behavior on Tiger.
 {{{__DARWIN_UNIX03}}}. I often use this to fix newer software on Tiger.

 Yes, I was thinking along those lines.

 > Someone has posted up almost all the Mac SDK's, so I forked it here
 <https://github.com/kencu/MacOSX-SDKs> if you're looking for them.

 Thanks, that's very useful to have!

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Ticket URL: <https://trac.macports.org/ticket/55242#comment:4>
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