[MacPorts] #54984: Libunwind 3.9.1 can't compile, osx 10.5 ppc

[MacPorts]

#54984: Libunwind 3.9.1 can't compile, osx 10.5 ppc
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  Reporter:  snigel     |      Owner:  jeremyhu
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:  powerpc
      Port:  libunwind  |
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Comment (by kencu):

 yes, clang-3.4 can't build anything much reliably on PowerPC. It should
 somehow get blacklisted in macports' compiler choice settings.

 Do you mind if I ask what you are up to on PPC that needs libunwind? I
 seem to be happy with it for quite some time now, and I don't have it
 installed at present.

 I do have clang-3.8 working on PPC quite well. You can see
 <https://trac.macports.org/ticket/53184> for some info on that. It's
 almost ready for a Portfile release. Just was hoping ian sandhoe or
 somebody would help me fix the issue with eh_frames and exceptions...

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Ticket URL: <https://trac.macports.org/ticket/54984#comment:2>
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