[MacPorts] #57117: upgrade last users of protobuf-cpp to protobuf3-cpp

[MacPorts]

#57117: upgrade last users of protobuf-cpp to protobuf3-cpp
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  Reporter:  pmetzger                            |      Owner:  (none)
      Type:  enhancement                         |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  caffe MyPaint opencv raceintospace  |
  shogun-devel sumo                              |
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Comment (by kencu):

 Replying to [comment:6 ryandesign]:
 > shouldn't it be arranging for `-std=c++11` to appear in the compile
 flags?

 Sure. I fixed half a dozen ports like that already. But `caffe` is a mess.
 Maybe easy for you, but an hour for me and no success.

 My contribution is that forcing one of those new compilers is a simple
 fix, when you're in Makefile hell.

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Ticket URL: <https://trac.macports.org/ticket/57117#comment:7>
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