GLIBCXX_3.4.20

/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found #766

GLIBCXX_3.4.20' not found

sudo find / -name "libstdc++.so.6*"
sudo cp somewhere/libstdc++.so.6.0.25 /usr/lib64/

GLIBC_2.18' not found
curl -O http://ftp.gnu.org/gnu/glibc/glibc-2.18.tar.gz
tar zxf glibc-2.18.tar.gz
cd glibc-2.18/
mkdir build
cd build/
../configure --prefix=/usr
make -j2
make install