Radian tries to link against fixed version of glibcxx

[david-cortes]

I get this error when trying to load radian, either through a pip or conda install:

Traceback (most recent call last):
  File "/home/david/anaconda3/bin/radian", line 10, in <module>
    sys.exit(main())
  File "/home/david/anaconda3/lib/python3.9/site-packages/radian/__init__.py", line 108, in main
    RadianApplication(r_home, ver=__version__).run(options)
  File "/home/david/anaconda3/lib/python3.9/site-packages/radian/radianapp.py", line 96, in run
    rchitect.init(args=args, register_signal_handlers=True)
  File "/home/david/anaconda3/lib/python3.9/site-packages/rchitect/setup.py", line 46, in init
    raise Exception(load_lib_error())
Exception: Cannot load shared library: /home/david/anaconda3/bin/../lib/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /usr/lib/x86_64-linux-gnu/libicuuc.so.71)

Here's an explanation of why this error happens: microsoft/LightGBM#5106 (comment)

Can be worked around by launching it with LD_PRELOAD="${LD_PRELOAD}:/usr/lib/x86_64-linux-gnu/libstdc++.so.6" radian, but this should be possible to fix by changing the setup logic.

[randy3k]

Likely because your anaconda build was built from a different version of libc than what the R build is.

[david-cortes]

Likely because your anaconda build was built from a different version of libc than what the R build is.

Still happens with pip installs.