[MacPorts] #66414: Failed to patch libffi: can't read "patch.cmd"

[MacPorts]

#66414: Failed to patch libffi: can't read "patch.cmd"
------------------------------+-------------------------
  Reporter:  programmingkidx  |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.8.0
Resolution:                   |   Keywords:  snowleopard
      Port:  libffi           |
------------------------------+-------------------------

Comment (by jmroot):

 Sounds like you didn't select UNIX subsystem (or whatever the installer
 calls it) when installing the OS.

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Ticket URL: <https://trac.macports.org/ticket/66414#comment:9>
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