[MacPorts] #62221: dvdbackup @0.4.2: error: no member named 'file' in 'ifo_handle_t'

[MacPorts]

#62221: dvdbackup @0.4.2: error: no member named 'file' in 'ifo_handle_t'
------------------------+--------------------
  Reporter:  wilya7     |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.4
Resolution:             |   Keywords:
      Port:  dvdbackup  |
------------------------+--------------------

Comment (by ryandesign):

 We do [https://build.macports.org/builders/ports-
 11_arm64-builder/builds/10948/steps/install-port/logs/stdio see the same
 problem] when trying to build the port now on macOS 11 arm64, so the
 problem is not unique to your system.

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Ticket URL: <https://trac.macports.org/ticket/62221#comment:3>
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