See INSTALL file for general instructions on building freeDiameter.

On Ubuntu / Debian, the following packages are required (aptitude install ...):
 cmake make gcc flex bison libsctp1 libsctp-dev libgnutls-dev libgcrypt-dev
 
Additionnaly, these ones may be useful:
 mercurial gdb
 
In order to build app_acct extension, you will also need the package libpq-dev.

Tested not working: Ubuntu Hardy (too old).
Tested working: Ubuntu Intrepid, Jaunty, Karmic, Lucid. Debian Lenny.