[MacPorts] #38684: apple-gcc42 can no longer be built on Tiger

[MacPorts]

#38684: apple-gcc42 can no longer be built on Tiger
---------------------------+----------------------
  Reporter:  ryandesign@…  |      Owner:  mfeiri@…
      Type:  defect        |     Status:  closed
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.1.3
Resolution:  wontfix       |   Keywords:  tiger
      Port:                |
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Comment (by egall@…):

 Replying to [comment:9 mfeiri@…]:
 > Replying to [comment:8 jeremyhu@…]:
 > > Replying to [comment:7 mfeiri@…]:
 > > > @jeremyhu: Is "newer userland headers [...] are still compatible
 with older systems" the official position of Apple?
 > >
 > > Yes, and it always has been (up to intentionally removed support for
 old architectures, hence why I suggested grabbing the ppc headers from SN
 xnu if they were removed).
 > >
 > > This is why we say to always use the newest SDK with -mmacosx-version-
 min=10.X
 >
 > Ah, I didn't realize that the ability to cross compile ''for'' old
 systems implies usability of the new headers ''on'' the old systems. I'll
 give it a try when I have time. Although the prospect of backporting ppc
 support is still a concern... if I had any intention to fork xnu instead
 of just packaging it, I would have joined the PureDarwin project.

 You should join the PureDarwin project anyway! I'm sure they'd find some
 of the stuff you're doing useful.

 > Well, my intention was exactly to provide the same versions as exist on
 the host, because my goal is to use MacPorts independent of Xcode.

 This is #29172, for other people's reference

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Ticket URL: <https://trac.macports.org/ticket/38684#comment:10>
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