[MacPorts] #72062: mu fails to build without emacs: ERROR: Command `/usr/bin/emacs --version` failed with status 1

[MacPorts]

#72062: mu fails to build without emacs: ERROR: Command `/usr/bin/emacs --version`
failed with status 1
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.5
Resolution:                |   Keywords:
      Port:  mu            |
---------------------------+--------------------

Comment (by ra1nb0w):

 it is using the macOS version {{{/usr/bin/emacs}}}. Are you using the
 {{{emacs}}} variant? Because in that case the configure should use the
 right binary. What the command {{{/usr/bin/emacs --version}}} returns? If
 the port is without any variants, we should disable the emacs inclusion
 but this should be the default. Also, I notice that your are on PPC.

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Ticket URL: <https://trac.macports.org/ticket/72062#comment:1>
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