[MacPorts] #62440: perl5: invalid SDK path hardcoded on macOS 11

[MacPorts]

#62440: perl5: invalid SDK path hardcoded on macOS 11
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  Reporter:  chrstphrchvz  |      Owner:  mojca
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  perl5         |
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Comment (by mojca):

 I just tested on macOS 11/arm64 and solely revbumping perl 5.32 (meaning
 that `MacOSX11.sdk` gets hardcoded into `Config` files rather than
 `MacOSX11.0.sdk`) leads to successful installation of p5.32-tk, for
 example.

 Ken, one part that I'm not sure about when reading your answer: are you
 (and Jeremy) saying that:
 * we should never pass any SDK to `CFLAGS`, `LDFLAGS`, ...
 * we should not bake those values into build scripts

 I totally agree with the second item, but at this very moment it's a tiny
 bit non-trivial to achieve unless we also remove SDKs from all the
 environmental variables.

 I believe we should look at this from two completely different angles and
 try to find:
 * something that fixes the problem immediately
 * something that fixes the problem correctly

 At this moment I would like to solve the first one. We need to talk to
 upstream to address the second one.

-- 
Ticket URL: <https://trac.macports.org/ticket/62440#comment:9>
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