[MacPorts] #57093: caffe update fails after protobuf3 upgrade

[MacPorts]

#57093: caffe update fails after protobuf3 upgrade
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 Reporter:  jwhowse4  |      Owner:  (none)
     Type:  defect    |     Status:  new
 Priority:  Normal    |  Milestone:
Component:  ports     |    Version:  2.5.3
 Keywords:            |       Port:  caffe
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 On MacOS 10.12.6 with XCode 9.2 after updating the protobuf3-cpp package
 to version 3.6.1, the subsequent update of the caffe package fails with
 the errors in the attached log file.  Any suggestions for a fix?

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Ticket URL: <https://trac.macports.org/ticket/57093>
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