[MacPorts] #59515: [icu] : support building with llvm-ar

[MacPorts]

#59515: [icu] : support building with llvm-ar
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  Reporter:  RJVB         |      Owner:  catap
      Type:  enhancement  |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:  fixed        |   Keywords:  haspatch
      Port:  icu          |
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Comment (by kencu):

 If this is right, it looks like llvm-ar and llvm-lipo support universal in
 llvm-12 and up:

 https://reviews.llvm.org/source/llvm-
 github/branches/main/;c6f7ac0071a1849a9f8046e2045e1631e224f1bd

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Ticket URL: <https://trac.macports.org/ticket/59515#comment:16>
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