devel/jsoncpp: Update to 1.9.2

[diizzy]

Summary

Update jsoncpp to 1.9.2
Drop scons (deprecated upstream) in favour of meson

Test Plan

Runtime tested on 13-CURRENT (AMD64, r354972) with CMake
Poudriere log attached{F5969461}

[diizzy]

@yuri
Friendly ping

[yuri]

Sorry for the delay.

[yuri]

This port has a lot of big ports depending on it. I will update after all of them are rebuilt. Probably by Monday.

biology/bamtools \
devel/cmake \
devel/cmake-gui \
devel/opendht \
graphics/open3d \
graphics/ossim \
lang/solidity \
math/cadabra2 \
misc/ignition-fuel-tools \
multimedia/libopenshot \
net/libjson-rpc-cpp \
net/flower \
science/py-tensorflow \
www/iridium \
www/chromium \
www/qt5-webengine \
x11/waybar \
x11/polybar

[diizzy]

@yuri
Any update on this, did you run into issues with the update?

[yuri]

Any update on this, did you run into issues with the update?

Yes, this breaks the science/py-tensorflow port:

,nasm,nsync,org_sqlite,pasta,pcre,png_archive,protobuf_archive,six_archive,snappy,swig,termcolor_archive,wrapt,zlib_archive \
  /usr/local/bin/bash -c 'source external/bazel_tools/tools/genrule/genrule-setup.sh; touch bazel-out/freebsd-py2-opt/bin/third_party/py/numpy/tf_numpy_dummy.py')
ERROR: /wrkdirs/usr/ports/science/py-tensorflow/work-py36/bazel_out/c4d2d4417b4eb41713ce6dd52d587dc4/external/jsoncpp_git/BUILD.bazel:20:1: declared output 'external/jsoncpp_git/include/json/autolink.h' is a dangling symbolic link
ERROR: /wrkdirs/usr/ports/science/py-tensorflow/work-py36/bazel_out/c4d2d4417b4eb41713ce6dd52d587dc4/external/jsoncpp_git/BUILD.bazel:20:1: declared output 'external/jsoncpp_git/include/json/config.h' is a dangling symbolic link

[diizzy]

While I'm not sure if this patch is 100% correct it makes science/py-tensorflow build:
https://projects.pyret.net/files/public/freebsd/patch-third__party_systemlibs_jsoncpp.build
Drop it in science/py-tensorflow/files

I got the idea from https://github.com/NixOS/nixpkgs/blob/release-19.09/pkgs/development/python-modules/tensorflow/system-jsoncpp.patch

[yuri]

Drop it in science/py-tensorflow/files

Ok, thanks, I will try in overnight.

[yuri]

Daniel,

Thank you for your efforts!

Yuri