First off download, gpg verify, and untar the dependency packages as well as mpg321.

Unless otherwise noted, the configuration parameters for all of these are:

./configure –prefix=/usr –sysconfdir=/etc –localstatedir=/var –mandir=/usr/share/man –infodir=/usr/share/info

Build and install (as root) with:

make

make install

Use the following order to compile and install them:

libid3tag-0.15.1b.tar.gz
libmad-0.15.1b.tar.gz
madplay-0.15.2b.tar.gz
libao-0.8.8.tar.gz
mpg321-0.2.10.tar.gz

Once this is all installed, test it by playing an mp3 file. On a Gnome system which uses esd, use something like the following:

mpg321 -o esd track01.mp3