[MacPorts] #55430: libunwind-headers @3.9.1 installs headers that cause other ports to fail to build

[MacPorts]

#55430: libunwind-headers @3.9.1 installs headers that cause other ports to fail to
build
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  Reporter:  ryandesign         |      Owner:  jeremyhu
      Type:  defect             |     Status:  closed
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:
Resolution:  fixed              |   Keywords:
      Port:  libunwind-headers  |
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Comment (by ryandesign):

 Well I was hoping that beyond just changing the description, you would fix
 the header so that it does not cause the `comma at end of enumerator list`
 error. For example, would the attached patch be acceptable?

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Ticket URL: <https://trac.macports.org/ticket/55430#comment:2>
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