As adu is based on libosl, the object storage layer, you first have to install [libosl](http://people.tuebingen.mpg.de/maan/osl/). Adu's command line parser and the interactive help are generated by [gnu gengetopt](http://www.gnu.org/software/gengetopt/gengetopt.html). Hence the gengetopt package must be installed to compile adu from source. To generate the man page, [help2man](ftp://ftp.gnu.org/pub/gnu/help2man) must be installed.