[MacPorts] #62470: Ports fail to parse after changes to gcc_compilers.tcl

[MacPorts]

#62470: Ports fail to parse after changes to gcc_compilers.tcl
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  Reporter:  ryandesign  |      Owner:  cjones051073
      Type:  defect      |     Status:  reopened
  Priority:  High        |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:              |
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Comment (by jmroot):

 Replying to [comment:6 ryandesign]:
 > For example, [ticket:62480 py-numpy specifies clang37] which won't work
 on arm64. Fine. The port can't be installed and should emit an error
 ''when the user attempts to install it''.

 It doesn't actually need clang37 in general, it asks the portgroup to add
 a clang37 variant. The only time an error should result is if the user
 tries to install with that variant. But it seems like simply not creating
 that variant on arm64 would be fine.

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Ticket URL: <https://trac.macports.org/ticket/62470#comment:7>
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