[MacPorts] #64932: libcxx for PowerPC

[MacPorts]

#64932: libcxx for PowerPC
---------------------------+-------------------------------------
  Reporter:  barracuda156  |      Owner:  jeremyhu
      Type:  enhancement   |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.2
Resolution:                |   Keywords:  powerpc, leopard, ppc64
      Port:  libcxx        |
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Comment (by barracuda156):

 Replying to [comment:3 kencu]:
 > As I mentioned before, I built libcxx on PowerPC in about 2018. It was a
 branch in the LeopardPorts repo.

 I know you had `clang-5.0` on PowerPC. I tried to build it just to see how
 it goes, but it asked for `libomp`. Did you have it for PowerPC back then
 too? Or you somehow avoided this dependency?

 I have WIP on `libomp` for PPC, but it still fails with a number of
 undefined symbols: https://github.com/iains/darwin-toolchains-start-
 here/discussions/30

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Ticket URL: <https://trac.macports.org/ticket/64932#comment:8>
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