wget 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
strings /lib64/libc.so.6 |grep GLIBC_
make install
strings /lib64/libc.so.6 |grep GLIBC_
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