[MacPorts] #57673: claws-mail: configure: error: libetpan 0.57 not found

[MacPorts]

#57673: claws-mail: configure: error: libetpan 0.57 not found
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  Reporter:  ryandesign  |      Owner:  pmetzger
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  claws-mail  |
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Comment (by jmroot):

 The quick-fix way would be to only apply a patch removing that line on OS
 versions that don't understand it. The better way suitable for sending
 upstream would be to check the OS or ld version in the configure script
 before adding the flag. It's only needed for ld versions that can do LTO.

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Ticket URL: <https://trac.macports.org/ticket/57673#comment:9>
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