opencv @3.4.3_1 : +contrib variant failed

[ierofant (Андрей Корнилов)]

I tied to install it with protobuf-cpp and protobuf3-cpp (sudo port install opencv +contrib).

1. protobuf3-cpp:

   In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.cc:4:
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:17:2: error: This file was generated by an older version of protoc which is
   #error This file was generated by an older version of protoc which is
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:18:2: error: incompatible with your Protocol Buffer headers.  Please
   #error incompatible with your Protocol Buffer headers.  Please
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:19:2: error: regenerate this file with a newer version of protoc.
   #error regenerate this file with a newer version of protoc.
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:1097:10: error: unknown type name 'PROTOBUF_CONSTEXPR'
     static PROTOBUF_CONSTEXPR int const kIndexInFileMessages =
   

2. protobuf-cpp:

   In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.cc:4:
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:12:2: error: This file was generated by a newer version of protoc which is
   #error This file was generated by a newer version of protoc which is
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:13:2: error: incompatible with your Protocol Buffer headers.  Please update
   #error incompatible with your Protocol Buffer headers.  Please update
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:14:2: error: your headers.
   #error your headers.
    ^
   /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_graphics_opencv/opencv/work/opencv-3.4.3/modules/dnn/misc/caffe/opencv-caffe.pb.h:23:10: fatal error: 'google/protobuf/arena.h' file not found
   #include <google/protobuf/arena.h>
   

main.log for both cases in the attachment.

macOS Mojave Version 10.14
Xcode 10.1 Build version 10B61

[jmroot (Joshua Root)]

#56349