No additional library is necessary.
To install io_libs from its source code, you simply need to follow this recipe:
/home/bioubuntu:% tar -zxvf io_lib-1.12.4.tar.gz
/opt/bio/sources. Yo uneed to make suer that it belongs to root and that its permissions are set to 755:% sudo mv io_lib-1.12.4 /opt/bio/sources % sudo chown -R root:root /opt/bio/sources/io_lib-1.12.4 % sudo chmod 755 /opt/bio/sources/io_lib-1.12.4
% cd /opt/bio/sources/io_lib-1.12.4 % sudo make && sudo make install