hi, i complied a bitcoind in Ubuntu Dektop 64bit 12.04.4
./autogen.sh
./configure
make
sudo make install
completed and works well in Ubuntu

i moved this bitcoind into a Centos 64bit 6.5, ran it and some errors came out
./bitcoind: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./bitcoind)
linux-vdso.so.1 => (0x00007fffa7dff000)
libboost_system.so.1.46.1 => not found
libboost_filesystem.so.1.46.1 => not found
libboost_program_options.so.1.46.1 => not found
libboost_thread.so.1.46.1 => not found
libdb_cxx-4.8.so => not found
libssl.so.1.0.0 => not found
libcrypto.so.1.0.0 => not found
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007fbe9c216000)
libm.so.6 => /lib64/libm.so.6 (0x00007fbe9bf92000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fbe9bd7c000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fbe9bb5e000)
libc.so.6 => /lib64/libc.so.6 (0x00007fbe9b7ca000)
/lib64/ld-linux-x86-64.so.2 (0x0000003dc6000000)

i think all *.so lib required need to be compiled together with the bitcoind binnary, but how? i tried
./autogen.sh
./configure LDFLAGS=-static
make
sudo make install
completed but still doesn't work in Centos, same error

the bitcoind in https://bitcoin.org/bin/0.8.6/bitcoin-0.8.6-linux.tar.gz however works well in both Centos and Ubuntu
another question, why it has only 6.6MB size? my bicoind has 56MB, i am not good at linux, please help in details