[MacPorts] #56564: emacs @26.1: emacs port requires autoconf

[MacPorts]

#56564: emacs @26.1: emacs port requires autoconf
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  Reporter:  david135  |      Owner:  drkp
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.5.0
Resolution:            |   Keywords:
      Port:  emacs     |
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Comment (by wyuenho):

 I have a fix for this in my PR, I'm working on updating the emacs-app port
 but the base port happened to fail CI, might as well.

 https://github.com/macports/macports-ports/pull/1936

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Ticket URL: <https://trac.macports.org/ticket/56564#comment:3>
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