ADELI software in ubuntu 12.04 but it sayes I need to install libg2c
I'd suspect that you would need g77 before the "libg2c need" came up ?
'libg2c' is part of the g77 compiler files.
? Is your OS 32bits (i686) or 64bits (x86_64) ?
Please show the output from $ uname -m <Enter>
( There may be some g77 packages available for Ubuntu 12* ).