[MacPorts] #58935: go @1.13: build fails on 10.9 and less

[MacPorts]

#58935: go @1.13: build fails on 10.9 and less
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  Reporter:  kencu   |      Owner:  ci42
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  lion mountainlion
      Port:  go      |
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Comment (by Ionic):

 That was my thinking as well, but I'd hope that the bootstrapping
 `llvm`/`clang` and the later default `llvm`/`clang` versions won't ever
 need the `legacy-support` port.

 Using the `muniversal` PG would be possible, but doesn't really help a
 lot.

 I'm using `lipo -archs` to get a list of architectures in an object file
 in a stable(!), scripting-compatible format and I need that information in
 any case in order to filter out variations that are not suitable for a
 given architecture (as you've seen, different architectures on the same OS
 have different symbols). I don't know of any other tool that could do that
 in a sane and stable version.

 Then again, I could rewrite this to make the Makefile take another
 parameter for the architecture and use that as an override (including
 checking for non-fatness of object files) instead of relying on `lipo`
 (and hence the `cctools` ports) and use the `muniversal` PG for MacPorts.
 That would leave the rather cool auto-detection and fat-file feature using
 `lipo` around for people that don't want to build this library as part of
 MacPorts and still enable us to drop the `cctools` dependency again?

-- 
Ticket URL: <https://trac.macports.org/ticket/58935#comment:27>
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