mkdir build-gcc
cd build-gcc
CC=gcc CXX=g++ cmake -DSTATIC_LINK=1 -DBOOST_ROOT=/home/proydakov/sdks/boost_1_65_0_libstdc++/ ..
ninja # make -j

mkdir build-clang
cd build-clang
CC=clang CXX=clang++ cmake -DSTATIC_LINK=1 -DBOOST_ROOT=/home/proydakov/sdks/boost_1_65_0_libc++/ ..
ninja # make -j

./bootstrap.sh --with-toolset=gcc
./b2 toolset=gcc link=static --prefix=~/sdks/boost_version_libstdc++ install

./bootstrap.sh --with-toolset=clang
./b2 toolset=clang link=static cxxflags="-stdlib=libc++" linkflags="-stdlib=libc++" --prefix=~/sdks/boost_version_libc++ install