[MacPorts] #42082: [pandoc]: configure step fails with "missing dependencies..."

[MacPorts]

#42082: [pandoc]: configure step fails with "missing dependencies..."
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  Reporter:  kurt.pfeifle@…  |      Owner:  cal@…
      Type:  defect          |     Status:  reopened
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.2.1
Resolution:                  |   Keywords:
      Port:  pandoc          |
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Comment (by cal@…):

 I think r131981 should finally fix these issues. Let's see what the
 buildbots say…

 Note that you will see warnings along the lines of "failed to execute
 Portfile from registry" during the upgrade when deactivating the old
 versions. These warnings are expected but harmless and could unfortunately
 not be avoided with this change.

 I'm keeping this open to explore how pandoc could be updated without
 leaving haskell platform.

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Ticket URL: <https://trac.macports.org/ticket/42082#comment:36>
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