[MacPorts] #67359: Updating to Transmission @4.0.3_1 fails on MacOS 10.15

[MacPorts]

#67359: Updating to Transmission @4.0.3_1 fails on MacOS 10.15
---------------------+--------------------------
 Reporter:  Gandoon  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.8.1
 Keywords:           |       Port:  transmission
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 A few days ago, the port of Transmission was refreshed to the 4.0.3
 version. However it fails with what seems to potentially be a problem with
 QuickLook. I am using a legacy MacOS 10.15 system, but I did not have any
 trouble building Transmission version 4.n pulled from their github
 repository. I started using that as MacPorts was still only offering
 version 3.00.

 I did not see the root cause immediately, so I here enclose the log file
 and hope someone might help figuring out why it does not want to build.

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Ticket URL: <https://trac.macports.org/ticket/67359>
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