CRAN is asking for removal of libstdc++ #116

Subject: CRAN packages hard-coding -lstdc++

libstdc++ is the support library for g++, but not for other C++ compilers. It may not exist on other systems, may be inappropriate (as on fedora-clang) or may be faked (as on macOS).

It should never be necessary as R links C++ code with the C++ compiler.

Please correct before 2022-12-05 to safely retain the package on CRAN.